New project .223

desertcj

Handloader
Sep 27, 2010
880
142
I didn't need another loading project, but why should a guy let that stand in the way? I picked up a Rem 783 Tactical with 24" barrel in .223. I have some load data to work from but some Quickload data would be useful too if someone wouldn't mind helping me out? I always come back to these threads and post my chronograph and target results for those that are interested.

24" barrel, 50gr lead free ballistic tip, 2.450" OAL. 5.56 pressure? I'm not sure on the case capacity, I'm finding 30.5gr. I have LC 5.56 brass and some Prvi .223 brass. I'm hoping to narrow down the powders I have to buy as right now, I'm looking at H322, CFE223, AR-comp, RL10x and Benchmark. Narrowing that down to 3 would be nice. Thanks in advance...Phil
 
Benchmark 1st then AR Comp would be my choice because that is my 69 and 77 gr powders.
 
I've been doing some reading and I think I'm going to try H322, CFE223 and Benchmark with CCI450 primers.
 
desertcj":1uy69clt said:
I've been doing some reading and I think I'm going to try H322, CFE223 and Benchmark with CCI450 primers.
I use the Benchmark and Ar Comp because they are very stable at temperature changes IMR 8208 is about the same as Benchmark.
 
Can't find any AR-comp. I'm OK with H322, CFE223 and Benchmark. I have starting points no problem, I guess I'll just find max for each the long way. .2gr more at a time. I'll report back with my load data, chronograph numbers and targets...
 
I’ll launch the computer and run it but Benchmark with that bullet will be the ticket. Probably around 24.5 or a little more. Work up.
Give me a few minutes
 
Code:
Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 50, Nosler BTLF 45498
Useable Case Capaci: 28.416 grain H2O = 1.845 cm³
Cartridge O.A.L. L6: 2.450 inch = 62.23 mm
Barrel Length      : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 54000 psi, or 372 MPa
or a maximum loading ratio or filling of 108 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

8 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Alliant AR-Comp *C *T              105.0     26.6     1.72    3506   100.0    54000    7009   0.943  ! Near Maximum !
Bofors RP11 TZ *CT approximation   104.4     26.6     1.72    3506   100.0    54000    7009   0.943  ! Near Maximum !
Accurate 2495                      106.9     27.4     1.77    3498    99.7    54000    7508   0.980  ! Near Maximum !
Nitrochemie A/S 0300                92.8     25.0     1.62    3482   100.0    54000    7117   0.951  ! Near Maximum !
Winchester 748                     100.7     28.4     1.84    3476    96.5    54000    7600   0.949  ! Near Maximum !
Hodgdon BL-C2                      103.3     29.5     1.91    3464    95.4    54000    7703   0.957  ! Near Maximum !
IMR 4895                           108.0     28.3     1.83    3462    93.8    53463    7782   0.961  ! Near Maximum !
Lovex D073.6                       106.5     28.7     1.86    3461    97.4    54000    7491   0.964  ! Near Maximum !
Accurate 2520                      104.1     28.7     1.86    3461    97.4    54000    7491   0.964  ! Near Maximum !
IMR 3031                           108.0     26.4     1.71    3458    99.0    50346    7495   0.972  ! Near Maximum !
SF033 fl, russ. 5,45x39             96.2     25.8     1.67    3457   100.0    54000    6731   0.964  ! Near Maximum !
Hodgdon H322                       101.4     25.8     1.67    3455    98.8    54000    7224   0.948  ! Near Maximum !
ADI AR 2219                         95.3     25.8     1.67    3455    98.8    54000    7224   0.948  ! Near Maximum !
Hodgdon H4895                      104.9     27.5     1.78    3446    94.6    54000    7586   0.960  ! Near Maximum !
Hodgdon H335                        95.5     27.3     1.77    3441    98.0    54000    7319   0.955  ! Near Maximum !
Norma 202 *C                       106.1     27.3     1.77    3441    98.0    54000    7326   0.960  ! Near Maximum !
SNPE Vectan SP 10                   95.1     26.6     1.72    3440    97.9    54000    7308   0.959  ! Near Maximum !
PB Clermont PCL 508 *C (PCL223)     95.0     26.6     1.73    3438    97.9    54000    7296   0.959  ! Near Maximum !
Hodgdon CFE223 *C                  107.9     30.8     2.00    3438    91.5    54000    7734   0.954  ! Near Maximum !
Ramshot Big Game                   108.0     30.1     1.95    3438    93.1    53717    7627   0.955  ! Near Maximum !
Alliant Reloder-10x *C              98.8     24.4     1.58    3435   100.0    54000    6912   0.964  ! Near Maximum !
ADI AR 2206H                       105.1     27.5     1.78    3433    93.8    54000    7534   0.962  ! Near Maximum !
ReloadSwiss RS 52                  108.0     29.2     1.89    3430    95.1    50520    7751   0.976  ! Near Maximum !
PB Clermont PCL 507 *C             101.9     27.9     1.81    3428    95.5    54000    7406   0.958  ! Near Maximum !
Ramshot Wild Boar                  103.0     28.8     1.87    3428    93.6    54000    7495   0.957  ! Near Maximum !
Somchem S321                       100.0     28.2     1.83    3426    95.8    54000    7438   0.964  ! Near Maximum !
Vihtavuori N530 *C                 100.9     26.6     1.72    3423    95.5    54000    7348   0.957  ! Near Maximum !
Vihtavuori N540 *C                 108.0     28.6     1.85    3423    97.9    53707    7345   0.962  ! Near Maximum !
SNPE Vectan SP 9                   105.6     28.6     1.85    3417    93.7    54000    7417   0.959  ! Near Maximum !
ReloadSwiss RS 40                   98.7     26.4     1.71    3416    96.9    54000    7214   0.959  ! Near Maximum !
Bofors RP11 ~approximation         108.0     28.3     1.83    3416    92.6    52352    7596   0.972  ! Near Maximum !
Raufoss RA11                       108.0     28.3     1.83    3416    92.6    52352    7596   0.972  ! Near Maximum !
Alliant Reloder-15 *C              108.0     28.3     1.83    3416    92.6    52352    7596   0.972  ! Near Maximum !
Norma 200 *C                        95.0     24.3     1.58    3415   100.0    54000    6750   0.979  ! Near Maximum !
Rottweil R901                      104.4     26.0     1.68    3414    97.8    54000    7236   0.982  ! Near Maximum !
Accurate 2015                      101.7     25.5     1.65    3408    99.8    54000    6822   0.971  ! Near Maximum !
Norma 201 *C                       106.3     27.2     1.77    3408    95.5    54000    7333   0.974  ! Near Maximum !
IMR 8208 XBR                       103.0     27.0     1.75    3408    95.4    54000    7242   0.960  ! Near Maximum !
Lovex D073.5                        99.1     27.8     1.80    3404    96.5    54000    7207   0.976  ! Near Maximum !
Accurate 2460                       98.8     27.8     1.80    3404    96.5    54000    7207   0.976  ! Near Maximum !
Vihtavuori N140 *C                 108.0     27.7     1.80    3403    98.3    53649    7031   0.961  ! Near Maximum !
Alliant Reloder-12                 100.7     26.9     1.74    3402    98.8    54000    6967   0.958  ! Near Maximum !
Norma 203B *C                      108.0     28.3     1.83    3400    93.1    51192    7574   0.981  ! Near Maximum !
ADI AR 2207                         93.2     22.8     1.48    3397   100.0    54000    6352   0.961  ! Near Maximum !
IMR 4198                            97.6     22.9     1.49    3395   100.0    54000    6415   0.946  ! Near Maximum !
Somchem S341                       103.7     29.2     1.89    3391    93.5    54000    7200   0.959  ! Near Maximum !
PB Clermont PCL 516                105.5     29.4     1.91    3390    90.8    54000    7353   0.961  ! Near Maximum !
Lovex D073.4                        97.2     27.3     1.77    3390    96.4    54000    7084   0.972  ! Near Maximum !
Rottweil R902                      108.0     27.3     1.77    3385    95.3    53425    7217   0.979  ! Near Maximum !
ADI AR 2210                         95.4     25.8     1.67    3377    96.3    54000    7006   0.963  ! Near Maximum !
Accurate 2200                       92.6     24.6     1.60    3376    97.2    54000    6894   0.959  ! Near Maximum !
Accurate 2230                       98.0     27.8     1.80    3375    94.6    54000    7074   0.971  ! Near Maximum !
Alliant Reloder-7                   92.2     23.4     1.51    3371   100.0    54000    6467   0.968  ! Near Maximum !
SNPE Vectan SP 7                   103.4     29.1     1.88    3367    90.7    54000    7204   0.971  ! Near Maximum !
Vihtavuori N133 *C                 107.3     25.7     1.67    3365    99.6    54000    6538   0.960  ! Near Maximum !
ADI BM2                             93.2     26.0     1.68    3363    96.3    54000    6927   0.965  ! Near Maximum !
Ramshot X-Terminator *C             99.3     27.8     1.80    3361    93.5    54000    7083   0.968  ! Near Maximum !
Vihtavuori N130 *C                 101.1     24.7     1.60    3361    99.9    54000    6478   0.966  ! Near Maximum !
Hodgdon Benchmark                  101.2     26.1     1.69    3361    96.1    54000    6924   0.965  ! Near Maximum !
Somchem S335                       105.2     27.0     1.75    3359    98.7    54000    6771   0.974  ! Near Maximum !
Bofors RP2 NT *C ~approximation    103.7     26.9     1.75    3358    94.2    54000    6975   0.962  ! Near Maximum !
Lovex S062                         108.0     27.5     1.78    3356    94.7    50588    7260   0.995  ! Near Maximum !
Ramshot TAC *C                     101.7     28.7     1.86    3354    89.9    54000    7175   0.968  ! Near Maximum !
Bofors RP1 NT *C ~approximation     93.1     23.6     1.53    3351    98.2    54000    6590   0.954  ! Near Maximum !
Kazan Sunar 308W                    96.2     24.6     1.60    3349    99.8    54000    6448   0.968  ! Near Maximum !
Elcho TR140 - preliminary data     108.0     29.2     1.89    3345    90.4    51871    7210   0.980  ! Near Maximum !
Hodgdon H4198                       93.7     23.0     1.49    3344    98.4    54000    6498   0.954  ! Near Maximum !
Lovex S060                         104.0     26.5     1.72    3341    93.7    54000    6898   0.966  ! Near Maximum !
Vihtavuori N120 *C                  95.6     22.9     1.48    3340   100.0    54000    5906   0.964  ! Near Maximum !
IMR 4320                           108.0     27.8     1.80    3340    92.0    50578    7192   0.978  ! Near Maximum !
Vihtavuori N125 *C                  90.2     22.0     1.42    3339   100.0    54000    5921   0.964  ! Near Maximum !
Hodgdon H380                       108.0     28.9     1.87    3337    89.8    50376    7348   0.994  ! Near Maximum !
ADI AR 2206                        103.1     26.7     1.73    3330    94.3    54000    6818   0.966  ! Near Maximum !
SNPE Vectan SP 11                  108.0     29.2     1.89    3322    91.2    47721    7454   1.005  ! Near Maximum !
Bofors RP3                         108.0     28.6     1.85    3322    93.1    46851    7455   1.023  ! Near Maximum !
Norma 203 old                      108.0     28.6     1.85    3322    93.1    46851    7455   1.023  ! Near Maximum !
ReloadSwiss RS 50                  108.0     29.4     1.91    3322    87.8    52506    7106   0.981  ! Near Maximum !
Accurate 4064                      108.0     27.7     1.79    3319    96.9    45568    7426   1.054
ADI AR 2208                        108.0     27.5     1.78    3317    91.5    50461    7102   0.985  ! Near Maximum !
Hodgdon VARGET *T                  108.0     27.4     1.77    3306    91.3    49890    7077   0.990  ! Near Maximum !
IMR 4064                           108.0     26.7     1.73    3272    91.2    48183    6954   1.008  ! Near Maximum !
Bofors RP7 NT *C ~approximation    108.0     28.5     1.85    3264    85.9    51104    6843   0.982  ! Near Maximum !
Elcho 17                           108.0     29.7     1.92    3258    89.2    44147    7677   1.037
Alliant Reloder-17 *T              108.0     29.7     1.92    3258    89.2    44147    7677   1.037
Somchem S355                       108.0     27.7     1.79    3246    91.6    44791    7172   1.046
IMR 4007 SSC                       108.0     28.7     1.86    3237    84.7    49712    6860   1.010  ! Near Maximum !
ReloadSwiss RS 60 *T               108.0     29.7     1.92    3231    89.3    43212    7750   1.048
Hodgdon H414                       108.0     29.9     1.94    3231    83.3    45492    7241   1.031
Winchester 760                     108.0     29.9     1.94    3231    83.3    45492    7241   1.031
Rottweil R903                      108.0     28.0     1.81    3227    91.3    43052    7189   1.062
IMR 4166 Enduron *C*T              108.0     27.1     1.76    3217    85.7    49721    6658   1.006  ! Near Maximum !
IMR 4451 Enduron *C*T              108.0     28.0     1.81    3197    84.6    47383    6738   1.020  ! Near Maximum !
Vihtavuori N135 *C                 108.0     25.6     1.66    3195    97.5    41364    6735   1.072
Accurate 2700                      108.0     29.5     1.91    3186    84.5    50866    6425   1.008  ! Near Maximum !
Bofors RP3 NT *C ~approximation    108.0     28.1     1.82    3184    86.4    46578    6672   1.024
Vihtavuori N550 *C                 108.0     28.9     1.87    3163    85.9    40726    7206   1.081
PB Clermont PCL 511                108.0     30.1     1.95    3145    82.7    42249    7075   1.067
Rottweil R907                      108.0     27.8     1.80    3121    82.5    44278    6591   1.062
Bofors RP7                         108.0     27.8     1.80    3121    82.5    44278    6591   1.062
Lovex S065                         108.0     27.7     1.79    3087    84.7    41283    6620   1.095
Alliant Reloder-16 *C *T           108.0     27.6     1.79    3064    83.0    38178    6916   1.108
Vihtavuori N150 *C                 108.0     26.7     1.73    3047    90.6    37727    6509   1.121
Norma URP *C                       108.0     28.0     1.81    3046    83.5    37015    6841   1.127
Bofors RP19 ~approximation         108.0     28.0     1.81    3045    83.5    36980    6836   1.127
ReloadSwiss RS 62                  108.0     29.6     1.92    3038    82.2    36651    6963   1.134
Lovex S070                         108.0     28.0     1.81    3031    81.3    38561    6551   1.124
Norma 204 *C                       108.0     29.2     1.89    3024    76.5    40442    6446   1.094
Ramshot Hunter                     108.0     29.2     1.89    3020    80.0    37654    6724   1.125
IMR 4350                           108.0     28.1     1.82    3011    79.6    39501    6307   1.105
Accurate 4350                      108.0     28.3     1.83    3007    82.7    34525    6865   1.161
PB Clermont PCL 518                108.0     29.2     1.89    2986    78.6    36743    6619   1.138
Bofors RP4 NT *C ~approximation    108.0     28.7     1.86    2984    78.8    37458    6405   1.131
Hodgdon H4350 *T                   108.0     27.7     1.79    2947    78.0    37136    6132   1.136
Somchem S365                       108.0     28.1     1.82    2943    84.7    32774    6832   1.181
Hodgdon Hybrid 100V                108.0     27.4     1.77    2929    84.2    34166    6355   1.165
Raufoss RA4                        108.0     28.3     1.83    2908    73.9    36084    6122   1.149
Bofors RP4 ~approximation          108.0     28.3     1.83    2908    73.9    36084    6122   1.149
ReloadSwiss RS 70 *C               108.0     30.1     1.95    2895    72.7    35809    6376   1.157
Rottweil R904                      108.0     27.9     1.81    2868    72.5    35696    5847   1.158
ADI AR 2209                        108.0     28.1     1.82    2862    71.8    34900    6002   1.165
Somchem S361                       108.0     30.1     1.95    2852    72.1    36604    5716   1.159
Alliant Reloder-19 *C              108.0     28.3     1.83    2847    72.1    33446    6054   1.184
IMR 4831                           108.0     27.1     1.76    2844    79.7    30517    6258   1.219
Bofors RP14 ~approximation         108.0     28.3     1.83    2815    71.5    32736    5929   1.196
 
Code:
Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 50, Nosler BTLF 45498
Useable Case Capaci: 28.416 grain H2O = 1.845 cm³
Cartridge O.A.L. L6: 2.450 inch = 62.23 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon Benchmark

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-10.0   90    23.22   3009    1006   38165   6174     91.0    1.124
-09.0   91    23.48   3041    1027   39361   6249     91.5    1.109
-08.0   92    23.74   3072    1048   40595   6322     92.0    1.094
-07.0   93    23.99   3104    1070   41867   6395     92.5    1.079
-06.0   94    24.25   3135    1091   43180   6465     93.0    1.064
-05.0   95    24.51   3167    1113   44534   6534     93.5    1.050
-04.0   96    24.77   3198    1135   45931   6601     93.9    1.035
-03.0   97    25.03   3229    1158   47373   6667     94.4    1.021  ! Near Maximum !
-02.0   98    25.28   3261    1180   48860   6731     94.8    1.008  ! Near Maximum !
-01.0   99    25.54   3292    1203   50396   6793     95.2    0.994  ! Near Maximum !
+00.0  100    25.80   3323    1226   51981   6853     95.6    0.981  ! Near Maximum !
+01.0  101    26.06   3354    1249   53618   6911     96.0    0.968  ! Near Maximum !
+02.0  102    26.32   3385    1272   55308   6967     96.4    0.955  !DANGEROUS LOAD-DO NOT USE!
+03.0  103    26.57   3416    1295   57054   7021     96.7    0.943  !DANGEROUS LOAD-DO NOT USE!
+04.0  104    26.83   3447    1319   58857   7073     97.0    0.930  !DANGEROUS LOAD-DO NOT USE!
+05.0  105    27.09   3478    1343   60721   7123     97.4    0.918  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba    100    25.80   3374    1264   54626   6895     97.0    0.960  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba    100    25.80   3268    1186   49362   6786     93.9    1.004  ! Near Maximum !
Code:
Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 50, Nosler BTLF 45498
Useable Case Capaci: 28.416 grain H2O = 1.845 cm³
Cartridge O.A.L. L6: 2.450 inch = 62.23 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant AR-Comp *C *T

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-10.0   92    23.22   3089    1059   34861   6632     98.5    1.137
-09.0   93    23.48   3122    1082   36023   6683     98.8    1.122
-08.0   94    23.74   3155    1105   37233   6731     99.1    1.107
-07.0   95    23.99   3187    1128   38483   6774     99.3    1.091
-06.0   96    24.25   3220    1151   39778   6814     99.5    1.075
-05.0   97    24.51   3252    1174   41120   6849     99.7    1.059
-04.0   98    24.77   3284    1198   42512   6880     99.8    1.044
-03.0   99    25.03   3316    1221   43954   6907     99.9    1.029
-02.0  100    25.28   3348    1245   45451   6930    100.0    1.014
-01.0  101    25.54   3380    1268   47000   6948    100.0    1.000  ! Near Maximum !
+00.0  102    25.80   3411    1292   48610   6964    100.0    0.986  ! Near Maximum !
+01.0  103    26.06   3442    1315   50282   6979    100.0    0.972  ! Near Maximum !
+02.0  104    26.32   3473    1339   52010   6994    100.0    0.958  ! Near Maximum !
+03.0  105    26.57   3503    1363   53817   7008    100.0    0.944  ! Near Maximum !
+04.0  106    26.83   3534    1386   55687   7021    100.0    0.931  !DANGEROUS LOAD-DO NOT USE!
+05.0  107    27.09   3564    1410   57630   7034    100.0    0.918  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba    102    25.80   3459    1328   51753   6850    100.0    0.961  ! Near Maximum !
Data for burning rate decreased by 3% relative to nominal value:
-Ba    102    25.80   3356    1250   45622   7073     99.8    1.012
Code:
Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 50, Nosler BTLF 45498
Useable Case Capaci: 28.416 grain H2O = 1.845 cm³
Cartridge O.A.L. L6: 2.450 inch = 62.23 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H322

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-10.0   91    23.22   3130    1088   38969   6647     95.2    1.091
-09.0   92    23.48   3163    1111   40259   6716     95.7    1.076
-08.0   93    23.74   3196    1134   41592   6784     96.1    1.061
-07.0   94    23.99   3229    1157   42972   6848     96.5    1.046
-06.0   95    24.25   3261    1181   44400   6911     96.9    1.031
-05.0   96    24.51   3294    1205   45878   6970     97.3    1.016
-04.0   97    24.77   3327    1229   47407   7027     97.6    1.002  ! Near Maximum !
-03.0   98    25.03   3359    1253   48991   7081     98.0    0.988  ! Near Maximum !
-02.0   99    25.28   3392    1277   50631   7132     98.3    0.974  ! Near Maximum !
-01.0  100    25.54   3424    1302   52329   7181     98.5    0.961  ! Near Maximum !
+00.0  101    25.80   3456    1326   54090   7226     98.8    0.948  ! Near Maximum !
+01.0  102    26.06   3488    1351   55912   7269     99.0    0.935  !DANGEROUS LOAD-DO NOT USE!
+02.0  103    26.32   3520    1376   57806   7308     99.2    0.922  !DANGEROUS LOAD-DO NOT USE!
+03.0  105    26.57   3552    1401   59748   7344     99.4    0.909  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    26.83   3584    1426   61800   7377     99.6    0.897  !DANGEROUS LOAD-DO NOT USE!
+05.0  107    27.09   3615    1451   63912   7406     99.7    0.885  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba    101    25.80   3507    1365   57298   7195     99.6    0.926  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba    101    25.80   3401    1284   51001   7223     97.6    0.971  ! Near Maximum !
Code:
Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 50, Nosler BTLF 45498
Useable Case Capaci: 28.416 grain H2O = 1.845 cm³
Cartridge O.A.L. L6: 2.450 inch = 62.23 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-10x *C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-10.0   90    22.24   3167    1113   40882   6561     98.6    1.087
-09.0   91    22.49   3198    1135   42193   6612     98.9    1.072
-08.0   92    22.73   3229    1157   43544   6660     99.1    1.058
-07.0   93    22.98   3259    1179   44938   6705     99.3    1.043
-06.0   94    23.23   3290    1202   46375   6748     99.5    1.029
-05.0   95    23.47   3320    1224   47856   6787     99.6    1.015  ! Near Maximum !
-04.0   96    23.72   3350    1246   49383   6824     99.7    1.001  ! Near Maximum !
-03.0   97    23.97   3380    1268   50958   6857     99.8    0.988  ! Near Maximum !
-02.0   98    24.22   3410    1291   52583   6888     99.9    0.974  ! Near Maximum !
-01.0   99    24.46   3439    1313   54258   6916    100.0    0.962  ! Near Maximum !
+00.0  100    24.71   3469    1336   55986   6940    100.0    0.949  !DANGEROUS LOAD-DO NOT USE!
+01.0  101    24.96   3498    1358   57769   6962    100.0    0.937  !DANGEROUS LOAD-DO NOT USE!
+02.0  102    25.20   3527    1381   59608   6983    100.0    0.924  !DANGEROUS LOAD-DO NOT USE!
+03.0  103    25.45   3556    1404   61507   7003    100.0    0.912  !DANGEROUS LOAD-DO NOT USE!
+04.0  104    25.70   3584    1426   63466   7023    100.0    0.901  !DANGEROUS LOAD-DO NOT USE!
+05.0  105    25.95   3612    1449   65488   7042    100.0    0.889  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba    100    24.71   3510    1368   59158   6844    100.0    0.928  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba    100    24.71   3422    1300   52834   7019     99.7    0.972  ! Near Maximum !
Code:
Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 50, Nosler BTLF 45498
Useable Case Capaci: 28.416 grain H2O = 1.845 cm³
Cartridge O.A.L. L6: 2.450 inch = 62.23 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon CFE223 *C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-10.0   94    26.73   2918     946   33030   6422     81.2    1.179
-09.0   95    27.03   2955     969   34191   6528     82.0    1.163
-08.0   96    27.32   2992     994   35398   6634     82.9    1.147
-07.0   97    27.62   3029    1018   36653   6737     83.7    1.131
-06.0   98    27.92   3066    1044   37959   6840     84.5    1.115
-05.0   99    28.22   3103    1069   39320   6940     85.2    1.097
-04.0  100    28.51   3141    1095   40735   7039     86.0    1.080
-03.0  101    28.81   3179    1122   42210   7137     86.8    1.063
-02.0  102    29.11   3217    1149   43747   7232     87.5    1.046
-01.0  103    29.40   3255    1176   45348   7325     88.2    1.029
+00.0  104    29.70   3293    1204   47020   7415     88.9    1.013  ! Near Maximum !
+01.0  105    30.00   3331    1232   48763   7504     89.6    0.997  ! Near Maximum !
+02.0  106    30.29   3370    1261   50585   7590     90.3    0.981  ! Near Maximum !
+03.0  107    30.59   3409    1290   52486   7673     91.0    0.965  ! Near Maximum !
+04.0  108    30.89   3447    1319   54474   7753     91.6    0.950  !DANGEROUS LOAD-DO NOT USE!
+05.0  109    31.19   3486    1349   56552   7831     92.2    0.935  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba    104    29.70   3365    1257   49777   7562     91.4    0.986  ! Near Maximum !
Data for burning rate decreased by 3% relative to nominal value:
-Ba    104    29.70   3217    1149   44368   7236     86.2    1.041
 
I am refining my powder list to H322, RL10x and IMR3031. CFE223 looks to slow and Benchmark looks a bit fast for top velocities with 50gr bullets. Hoping to find a good shooting load at 3500fps.
 
I run mine a little slower because I couldn’t beat the accuracy Benchmark gave in my bolt rifle w 50s and 55s.
 
Started this in April of 2019...if only I had known what was coming I would have bought a mess of components for this! I did shoot some factory prvi match 75gr hpbt through this rifle and it was nothing to get excited about. 1 to 1.5 moa. I bedded the recoil lug area since then but haven't shot it since.

I've got virgin '18 lake city 5.56 cases, trimmed to 1.750, flash holes deburred. They looked pretty good to start with. I sorted through some cases and got 60 out of 100 that have exactly the same headspace as once fired brass from my chamber. That'll work! Need to get a Redding body die so I can bump the shoulders a couple thousandths on the rest.

For bullets, I have Speer 50gr TNT, wet mollied. 53gr copper mono's I got from Midway as 2nds( I think they're Hornady GMX?), wet molly coated. Also, 68gr Hornady hpbt, wet molly. I have some Hornady 75gr hpbt coming and hopefully my 9 twist will stabalize them. They're the shortest 75gr bullets available I believe...pretty close to the same length as the 68gr hpbt.

Powders I have available to start are Ramshot Exterminator, Accurate 2495, Varget and LeverRevolution. Wish I had CFE223 but Lever is just one step slower. Probably be good with 75gr, might be too slow for even the 68gr hpbt.

Primers, CCI 450 is all I am able to afford for now. I've seen Federal 205Ms on gunbroker but 1000 are coming in at about $200 with shipping.

Looking forward to getting some ammo loaded up and getting this project rolling!
 
I was able to grab a brick of CCI 450s from Midway, so I should be in business here in about a week I'd guess.
 
Well, my primers came in and I went to prime 50 of the LC cases with my rcbs hand primer only to discover that the 450s were protruding above the case head by at least 4 or 5 thousandths. Been down that road before, so all stop. I don't have a small rifle primer pocket uniformer naturally. So I deprimed the 3 cases I tried and I'm waiting for a SR uniformer to show up...probably another week. I did order an electronic powder scale today though so I'm excited about that.
 
OK, took a closer look. It's not the brass, it was the priming tool. The plunger was not going up high enough to fully seat the primer. Kind of a pain, but I took the tool apart and was able to unscrew the plunger enough for it to go high enough. I'm starting to dislike this priming tool a bit now. Just waiting on this electric scale now! I have a beam scale but...
 
What scale did you order? I was reloading today and my digital scale is driving me crazy.
 
The Brifit scale came in yesterday and I got to try it out today after work. It seems good for $20? Reads to the hundredth of a grain but it's a bit temperamental at that resolution. Definitely able to split tenths of a grain so it seems good enough for me. Here's two pictures weighing the same 50gr Speer TNT...
 

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