Quickload request please

H

HeathSexton

Handloader
May 12, 2006
1,209
41
.243 Win 24" barrel
WW Brass
CCI 200
105gr Hornady HPBT
H4831


I have a load that shoots great and seems to be easy on brass but depending on which manual you look at I am either 4grs over max, 1gr over max, or 1 gr under max.


Thanks
 
That articular bullet/cartridge combination appears pretty sensitive to small iterations of H4831 charge. You will gain a slight amount of space with H4831SC.

Code: 
Cartridge          : .243 Win.
Bullet             : .243, 105, Hornady BTHP 2458
Useable Case Capaci: 47.586 grain H2O = 3.090 cm³
Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H4831

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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

-20.0   84    35.60   2351    1289   30132   8383     86.3    1.594
-18.0   86    36.49   2411    1355   32202   8670     87.7    1.553
-16.0   88    37.38   2471    1423   34419   8949     89.1    1.514
-14.0   90    38.27   2531    1493   36793   9221     90.4    1.475
-12.0   92    39.16   2591    1565   39340   9484     91.7    1.428
-10.0   94    40.05   2652    1640   42070   9736     92.8    1.384
-08.0   96    40.94   2713    1715   45002   9977     93.9    1.342
-06.0   98    41.83   2773    1793   48141  10206     94.9    1.301
-04.0  100    42.72   2834    1873   51538  10421     95.9    1.261  ! Near Maximum !
-02.0  102    43.61   2895    1954   55190  10621     96.7    1.223  ! Near Maximum !
+00.0  104    44.50   2956    2037   59123  10804     97.4    1.187  ! Near Maximum !
+02.0  106    45.39   3017    2122   63348  10971     98.1    1.151  !DANGEROUS LOAD-DO NOT USE!
+04.0  109    46.28   3078    2208   67882  11120     98.7    1.117  !DANGEROUS LOAD-DO NOT USE!
+06.0  111    47.17   3138    2296   72776  11249     99.1    1.084  !DANGEROUS LOAD-DO NOT USE!
+08.0  113    48.06   3199    2386   78066  11357     99.5    1.051  !DANGEROUS LOAD-DO NOT USE!
+10.0  115    48.95   3259    2476   83795  11445     99.8    1.020  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba    104    44.50   3098    2238   70598  10706    100.0    1.101  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    104    44.50   2769    1787   48270  10364     90.9    1.298

Code: 
Cartridge          : .243 Win.
Bullet             : .243, 105, Hornady BTHP 2458
Useable Case Capaci: 47.586 grain H2O = 3.090 cm³
Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H4831 SC

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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

-20.0   80    35.60   2351    1289   30132   8383     86.3    1.594
-18.0   82    36.49   2411    1355   32202   8670     87.7    1.553
-16.0   84    37.38   2471    1423   34419   8949     89.1    1.514
-14.0   86    38.27   2531    1493   36793   9221     90.4    1.475
-12.0   88    39.16   2591    1565   39340   9484     91.7    1.428
-10.0   90    40.05   2652    1640   42070   9736     92.8    1.384
-08.0   92    40.94   2713    1715   45002   9977     93.9    1.342
-06.0   94    41.83   2773    1793   48141  10206     94.9    1.301
-04.0   96    42.72   2834    1873   51538  10421     95.9    1.261  ! Near Maximum !
-02.0   98    43.61   2895    1954   55190  10621     96.7    1.223  ! Near Maximum !
+00.0  100    44.50   2956    2037   59123  10804     97.4    1.187  ! Near Maximum !
+02.0  102    45.39   3017    2122   63348  10971     98.1    1.151  !DANGEROUS LOAD-DO NOT USE!
+04.0  104    46.28   3078    2208   67882  11120     98.7    1.117  !DANGEROUS LOAD-DO NOT USE!
+06.0  106    47.17   3138    2296   72776  11249     99.1    1.084  !DANGEROUS LOAD-DO NOT USE!
+08.0  108    48.06   3199    2386   78066  11357     99.5    1.051  !DANGEROUS LOAD-DO NOT USE!
+10.0  110    48.95   3259    2476   83795  11445     99.8    1.020  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba    100    44.50   3098    2238   70598  10706    100.0    1.101  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    100    44.50   2769    1787   48270  10364     90.9    1.298

Code: 
Cartridge          : .243 Win.
Bullet             : .243, 105, Hornady BTHP 2458
Useable Case Capaci: 47.586 grain H2O = 3.090 cm³
Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
Barrel Length      : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 52666 psi, or 363 MPa
or a maximum loading ratio or filling of 112 %
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 !

33 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
---------------------------------  -----------------------------------------------------------------
Vihtavuori N570                    108.4     50.1     3.25    2982    92.9    52667   12621   1.246  ! Near Maximum !
ADI AR 2225                        111.8     49.3     3.19    2972    99.7    52667   11737   1.241  ! Near Maximum !
Hodgdon Retumbo                    111.8     49.3     3.19    2972    99.7    52667   11737   1.241  ! Near Maximum !
Alliant Reloder-33                 108.0     52.1     3.37    2966    93.8    52667   12444   1.249  ! Near Maximum !
Alliant Reloder-25                 104.9     45.8     2.97    2958   100.0    52667   11138   1.243  ! Near Maximum !
Norma MRP                           97.2     44.5     2.88    2955    99.3    52667   11494   1.253  ! Near Maximum !
Norma MRP 2                        107.5     47.2     3.06    2953    97.7    52667   11730   1.255  ! Near Maximum !
Bofors RP30                        107.5     47.2     3.06    2953    97.7    52667   11730   1.255  ! Near Maximum !
Vihtavuori N560                     98.8     44.3     2.87    2941    96.6    52667   11616   1.248  ! Near Maximum !
ADI AR 2218                        111.3     52.0     3.37    2939    91.6    52667   12634   1.239  ! Near Maximum !
PB Clermont PCL 517                102.0     47.8     3.10    2939    97.6    52667   11500   1.243  ! Near Maximum !
SNPE Vectan SP 12                  101.9     47.7     3.09    2939    97.7    52667   11485   1.243  ! Near Maximum !
IMR 7828 SSC                        97.5     44.0     2.85    2929    97.0    52667   11281   1.239  ! Near Maximum !
IMR 7828                           103.1     44.0     2.85    2929    97.0    52667   11281   1.239  ! Near Maximum !
Accurate MAGPRO                     99.2     46.3     3.00    2928    95.1    52667   11635   1.257  ! Near Maximum !
Alliant Reloder-22                  99.0     43.9     2.84    2922    98.2    52667   11244   1.255  ! Near Maximum !
Raufoss RA15                        99.0     43.9     2.84    2922    98.2    52667   11244   1.255  ! Near Maximum !
Bofors RP5/NP ~approximation        99.0     43.9     2.84    2922    98.2    52667   11244   1.255  ! Near Maximum !
Bofors RP15                        101.6     44.1     2.86    2920    98.1    52667   11246   1.255  ! Near Maximum !
Winchester WXR                     101.6     44.1     2.86    2920    98.1    52667   11246   1.255  ! Near Maximum !
ADI AR 2213                         98.4     43.6     2.83    2914    96.9    52667   11153   1.237  ! Near Maximum !
Ramshot Magnum                      99.4     47.5     3.08    2905    98.9    52667   10830   1.249  ! Near Maximum !
ADI AP 2214                        102.5     46.7     3.02    2903    97.2    52667   11043   1.238  ! Near Maximum !
Hodgdon H1000                      107.7     46.7     3.03    2900    97.1    52667   11009   1.238  ! Near Maximum !
ADI AR 2217                        107.7     46.7     3.03    2900    97.1    52667   11009   1.238  ! Near Maximum !
Rottweil R905                      100.1     43.6     2.82    2886    96.5    52667   10902   1.256  ! Near Maximum !
ADI AR 2209                         95.2     41.5     2.69    2884    98.0    52667   10641   1.242  ! Near Maximum !
Somchem S365                        92.9     40.5     2.63    2880   100.0    52667    9745   1.267  ! Near Maximum !
Alliant Reloder-19                  95.5     41.9     2.71    2879    98.0    52667   10680   1.252  ! Near Maximum !
Ramshot Hunter                      91.2     41.3     2.68    2879    99.6    52667   10431   1.258  ! Near Maximum !
Bofors RP5 NT ~approximation       101.8     45.5     2.95    2873    94.6    52667   10883   1.244  ! Near Maximum !
Bofors RP14 ~approximation          96.2     42.2     2.73    2873    98.0    52667   10602   1.253  ! Near Maximum !
Norma URP                           90.7     39.3     2.55    2864   100.0    52667   10038   1.264  ! Near Maximum !
Bofors RP19 ~approximation          90.7     39.4     2.55    2864   100.0    52667   10035   1.264  ! Near Maximum !
Hodgdon H870                       112.0     50.7     3.29    2863    93.3    47361   11964   1.312
Accurate 4350                       90.2     39.6     2.56    2860   100.0    52667   10046   1.285  ! Near Maximum !
Norma 204                           90.6     41.1     2.66    2858    97.8    52667   10410   1.252  ! Near Maximum !
Bofors RP4 ~approximation           93.6     41.1     2.66    2858    97.8    52667   10410   1.252  ! Near Maximum !
Raufoss RA4                         93.6     41.1     2.66    2858    97.8    52667   10410   1.252  ! Near Maximum !
Hodgdon H4831                      100.9     43.0     2.79    2854    96.1    52667   10486   1.249  ! Near Maximum !
Hodgdon H4831 SC                    97.0     43.0     2.79    2854    96.1    52667   10486   1.249  ! Near Maximum !
IMR 4831                            95.2     40.0     2.59    2846   100.0    52667    9828   1.275  ! Near Maximum !
Somchem S385                        95.8     42.5     2.75    2845    98.8    52667   10260   1.275  ! Near Maximum !
Vihtavuori 24N41                   109.8     51.3     3.32    2839    85.6    52667   10997   1.251  ! Near Maximum !
Bofors RP4 NT ~approximation        91.3     40.7     2.63    2838    99.0    52667   10088   1.266  ! Near Maximum !
Lovex S071                         104.9     43.5     2.82    2837    99.6    52667   10058   1.291  ! Near Maximum !
Accurate 3100                       99.2     43.5     2.82    2837    99.6    52667   10058   1.291  ! Near Maximum !
Winchester Supreme 780              94.7     43.8     2.84    2835    98.0    52667   10174   1.259  ! Near Maximum !
Vihtavuori N165                    101.0     43.8     2.84    2831    98.5    52667   10018   1.264  ! Near Maximum !
Hodgdon Hybrid 100V                 93.2     39.6     2.56    2829   100.0    52667    9270   1.263  ! Near Maximum !
Rottweil R904                       94.3     40.8     2.64    2828    96.9    52667   10120   1.254  ! Near Maximum !
Alliant Reloder-50                 112.0     53.1     3.44    2828    90.0    44995   12208   1.358
Vihtavuori N170                    110.6     48.0     3.11    2824    91.1    52667   10641   1.276  ! Near Maximum !
Lovex S070                          90.3     39.2     2.54    2824    99.2    52667    9919   1.275  ! Near Maximum !
Hodgdon H4350                       92.8     39.8     2.58    2822    98.7    52667    9866   1.257  ! Near Maximum !
IMR 4350                            91.1     39.7     2.58    2822    98.8    52667    9849   1.257  ! Near Maximum !
Vihtavuori N160                    100.7     42.4     2.75    2810    96.8    52667    9931   1.258  ! Near Maximum !
Somchem S361                        93.4     43.6     2.83    2793    96.1    52667    9885   1.269  ! Near Maximum !
Lovex D100                         107.5     50.7     3.29    2789    86.9    52667   10260   1.264  ! Near Maximum !
 
Thanks a bunch! Looks like I'm running pretty hard. 45.0grs H4831 @ 2.800" has went .592" and .498" @ 115yds 3 shots each. Primers are round and when I trim my brass the cutter doesn't even shave any excess. Looks like I may drop back and try to find another node.

Thanks again
 
46.2 of H1000 stayed between .5 and .7 with 0 pressure signs. I loaded up 32 rounds and shot from 400 and 620yds. I missed quite a bit at first because I over dialed. The 105 HPBT is a flat shooter. Once I got dialed I went 100% @ 400 and 75% @ 620. Our steel is good sized, around 12"x12" so it's no great feat. That little 105 carries the whap. A friend shoots the 55gr NBT from his .243 @ 3700fps, his made a TING when it hit, the 105 had a real WHAP, clearly audible even with ear muffs on.


Thanks again for the load data
 
You have some room to stuff a tad more propellant in the case if you are so inclined to do so. I'd be pleased with that sort of accuracy, however.

Code: 
Cartridge          : .243 Win.
Bullet             : .243, 105, Hornady BTHP 2458
Useable Case Capaci: 47.586 grain H2O = 3.090 cm³
Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H1000

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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

-20.0   89    38.56   2322    1257   28323   8630     84.7    1.624
-18.0   91    39.52   2387    1329   30400   8968     86.5    1.580
-16.0   93    40.49   2454    1404   32644   9295     88.3    1.536
-14.0   96    41.45   2521    1482   35073   9609     90.0    1.494
-12.0   98    42.42   2589    1562   37707   9909     91.5    1.448
-10.0  100    43.38   2657    1646   40561  10191     93.0    1.399
-08.0  102    44.34   2726    1733   43667  10454     94.4    1.351
-06.0  104    45.31   2796    1822   47042  10695     95.6    1.305
-04.0  107    46.27   2865    1914   50730  10912     96.7    1.260
-02.0  109    47.24   2935    2009   54755  11103     97.6    1.217  ! Near Maximum !
+00.0  111    48.20   3005    2106   59163  11265     98.4    1.175  ! Near Maximum !
+02.0  113    49.16   3075    2205   64001  11397     99.0    1.134  !DANGEROUS LOAD-DO NOT USE!
+04.0  116    50.13   3145    2307   69324  11496     99.5    1.095  !DANGEROUS LOAD-DO NOT USE!
+06.0  118    51.09   3215    2410   75194  11561     99.8    1.057  !DANGEROUS LOAD-DO NOT USE!
+08.0  120    52.06   3285    2516   81702  11590    100.0    1.020  !DANGEROUS LOAD-DO NOT USE!
+10.0  122    53.02   3354    2623   88930  11587    100.0    0.984  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba    111    48.20   3169    2342   72163  10913    100.0    1.080  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    111    48.20   2779    1801   47924  10808     91.0    1.297
 
Thanks for that info also.


I am more than happy with the accuracy and the apparent velocity from the 46.2 load.


My main issue today was I used a set of windage adjustable bases and I thought I had them square but I did not and I hit around 8" right at 400 every round. Talleys are on the way as I type.
 
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