Help Needed - 280 AI, 140 accubond, Re23,26?

I

idahohunter8

Beginner
May 7, 2015
119
0
I want to take this winter and try to really maximize my LAW 280 AI. The 140 nosler AccuBond was great in it as a factory load this fall so that is the bullet I want to play with. My goal is to find accuracy, safely in the 3250 FPS range which should be doable.

I had my mind set on Re 26, but most are saying I will be dissapointed if not shooting 160 plus grain bullets with this powder and suggesting I look at Re23. Alliant has no data for any of these powders for the ackley. Where do I start? Should I go 23 over 26? Any other powders to consider?

Thanks
Adam
 
I use 63 grains of RL22 with 140 Accubonds. Best group was .183 Velocity averages 3225. I've never tried 23 or 26 but I don't think I'll improve much, if any, over what I have with 22.
BP
 
RL22 with the 140 gr AB will do 3250 fps in my 280AI and .5 moa.

JD338
 
Cartridge : .280 Ack Imp
Bullet : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 64.303 grain H2O = 4.175 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-23

Code: 
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   86    49.60   2405    2055   31649   9842     97.9    1.586
-18.0   88    50.84   2465    2159   33906  10072     98.6    1.543
-16.0   90    52.08   2525    2264   36333  10279     99.2    1.501
-14.0   92    53.32   2584    2372   38944  10462     99.6    1.454
-12.0   94    54.56   2642    2481   41753  10620     99.9    1.407
-10.0   96    55.80   2701    2591   44781  10751    100.0    1.363
-08.0   98    57.04   2758    2702   48043  10863    100.0    1.320
-06.0  101    58.28   2815    2815   51566  10972    100.0    1.278
-04.0  103    59.52   2871    2929   55348  11077    100.0    1.239  ! Near Maximum !
-02.0  105    60.76   2927    3044   59391  11179    100.0    1.201  ! Near Maximum !
+00.0  107    62.00   2982    3160   63735  11277    100.0    1.164  ! Near Maximum !
+02.0  109    63.24   3037    3277   68408  11371    100.0    1.129  !DANGEROUS LOAD-DO NOT USE!
+04.0  111    64.48   3092    3397   73442  11460    100.0    1.094  !DANGEROUS LOAD-DO NOT USE!
+06.0  113    65.72   3146    3517   78871  11546    100.0    1.062  !DANGEROUS LOAD-DO NOT USE!
+08.0  115    66.96   3201    3640   84735  11626    100.0    1.030  !DANGEROUS LOAD-DO NOT USE!
+10.0  118    68.20   3255    3764   91079  11702    100.0    1.000  !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    107    62.00   3084    3379   78085  10879    100.0    1.077  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    107    62.00   2826    2837   50072  11808     99.7    1.282

Cartridge : .280 Ack Imp
Bullet : .284, 160, Nosler AccuBond 54932
Useable Case Capaci: 64.303 grain H2O = 4.175 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-26

Code: 
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   82    52.00   2435    2107   30900  10803     95.8    1.597
-18.0   84    53.30   2502    2224   33207  11105     96.9    1.552
-16.0   86    54.60   2568    2344   35702  11381     97.9    1.508
-14.0   88    55.90   2635    2466   38404  11627     98.7    1.459
-12.0   90    57.20   2701    2592   41332  11842     99.3    1.410
-10.0   92    58.50   2767    2720   44511  12024     99.7    1.361
-08.0   94    59.80   2832    2850   47963  12171     99.9    1.315
-06.0   96    61.10   2897    2982   51720  12282    100.0    1.271
-04.0   98    62.40   2961    3115   55810  12378    100.0    1.228  ! Near Maximum !
-02.0  100    63.70   3024    3250   60273  12469    100.0    1.186  ! Near Maximum !
+00.0  102    65.00   3087    3386   65125  12556    100.0    1.147  !DANGEROUS LOAD-DO NOT USE!
+02.0  104    66.30   3150    3525   70377  12637    100.0    1.108  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    67.60   3212    3665   76089  12713    100.0    1.072  !DANGEROUS LOAD-DO NOT USE!
+06.0  108    68.90   3274    3807   82310  12783    100.0    1.036  !DANGEROUS LOAD-DO NOT USE!
+08.0  110    70.20   3335    3952   89101  12847    100.0    1.002  !DANGEROUS LOAD-DO NOT USE!
+10.0  112    71.50   3397    4100   96530  12904    100.0    0.969  !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    102    65.00   3213    3667   81984  12030    100.0    1.050  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    65.00   2891    2970   50048  13112     98.8    1.277

Cartridge : .280 Ack Imp
Bullet : .284, 140, Nosler AccuBond 59992
Useable Case Capaci: 66.211 grain H2O = 4.299 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-26

Code: 
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   83    54.40   2540    2006   29633  10834     92.8    1.530
-18.0   85    55.76   2613    2122   31857  11188     94.3    1.487
-16.0   87    57.12   2686    2242   34267  11518     95.6    1.445
-14.0   89    58.48   2759    2366   36879  11821     96.8    1.404
-12.0   91    59.84   2832    2493   39715  12094     97.8    1.355
-10.0   93    61.20   2905    2623   42787  12335     98.6    1.308
-08.0   95    62.56   2978    2756   46152  12540     99.3    1.262
-06.0   97    63.92   3050    2892   49809  12708     99.7    1.218
-04.0   99    65.28   3122    3030   53796  12837     99.9    1.176
-02.0  102    66.64   3194    3171   58162  12926    100.0    1.135  ! Near Maximum !
+00.0  104    68.00   3264    3312   62941  13000    100.0    1.096  ! Near Maximum !
+02.0  106    69.36   3334    3456   68186  13067    100.0    1.058  !DANGEROUS LOAD-DO NOT USE!
+04.0  108    70.72   3404    3602   73954  13129    100.0    1.021  !DANGEROUS LOAD-DO NOT USE!
+06.0  110    72.08   3473    3750   80257  13185    100.0    0.986  !DANGEROUS LOAD-DO NOT USE!
+08.0  112    73.44   3542    3900   87167  13234    100.0    0.952  !DANGEROUS LOAD-DO NOT USE!
+10.0  114    74.80   3611    4053   94762  13276    100.0    0.919  !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    68.00   3414    3623   79898  12415    100.0    1.000  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    104    68.00   3033    2859   48640  13318     97.2    1.223

Cartridge : .280 Ack Imp
Bullet : .284, 140, Nosler AccuBond 59992
Useable Case Capaci: 66.211 grain H2O = 4.299 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-23

Code: 
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   87    52.00   2526    1984   30590  10007     95.9    1.515
-18.0   89    53.30   2592    2088   32791  10280     96.9    1.473
-16.0   91    54.60   2657    2195   35162  10531     97.8    1.433
-14.0   94    55.90   2723    2305   37715  10758     98.6    1.392
-12.0   96    57.20   2788    2416   40470  10961     99.2    1.346
-10.0   98    58.50   2853    2530   43441  11136     99.6    1.302
-08.0  100    59.80   2917    2645   46650  11283     99.9    1.260
-06.0  102    61.10   2981    2762   50124  11400    100.0    1.219
-04.0  105    62.40   3044    2880   53882  11496    100.0    1.180
-02.0  107    63.70   3106    2999   57948  11588    100.0    1.142  ! Near Maximum !
+00.0  109    65.00   3168    3119   62371  11677    100.0    1.106  ! Near Maximum !
+02.0  111    66.30   3229    3241   67124  11761    100.0    1.071  !DANGEROUS LOAD-DO NOT USE!
+04.0  113    67.60   3290    3364   72258  11840    100.0    1.038  !DANGEROUS LOAD-DO NOT USE!
+06.0  115    68.90   3350    3489   77817  11915    100.0    1.005  !DANGEROUS LOAD-DO NOT USE!
+08.0  118    70.20   3411    3616   83846  11984    100.0    0.974  !DANGEROUS LOAD-DO NOT USE!
+10.0  120    71.50   3471    3745   90397  12049    100.0    0.944  !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    109    65.00   3288    3361   76959  11235    100.0    1.020  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    109    65.00   2982    2764   49043  12113     98.8    1.222

Cartridge : .280 Ack Imp
Bullet : .284, 140, Nosler AccuBond 59992
Useable Case Capaci: 66.211 grain H2O = 4.299 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 24.0 inch = 609.6 mm
Code: 
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 110 %
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 !

46 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 Reloder-26                 104.5     68.5     4.44    3293   100.0    65000   13027   1.080  !DANGEROUS LOAD-DO NOT USE!
Norma MRP                          105.3     67.1     4.35    3264    99.8    65000   13171   1.079  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560                    107.1     66.8     4.33    3254    97.7    65000   13431   1.075  !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 70                  102.0     66.3     4.30    3252    99.9    65000   12772   1.067  !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517                109.5     71.3     4.62    3245    98.5    65000   13145   1.068  !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12                  109.4     71.2     4.62    3245    98.6    65000   13126   1.068  !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO                    107.3     69.6     4.51    3240    96.4    65000   13453   1.081  !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC                       105.5     66.2     4.29    3237    98.1    65000   12989   1.067  !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 60                   95.7     61.3     3.97    3233   100.0    65000   11742   1.072  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22                 107.4     66.2     4.29    3230    99.1    65000   12949   1.081  !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation       107.4     66.2     4.29    3230    99.1    65000   12949   1.081  !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15                       107.4     66.2     4.29    3230    99.1    65000   12949   1.081  !DANGEROUS LOAD-DO NOT USE!
Bofors RP15                        110.0     66.4     4.30    3221    98.9    64499   12942   1.085  !DANGEROUS LOAD-DO NOT USE!
Winchester WXR                     110.0     66.4     4.30    3221    98.9    64499   12942   1.085  !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213                        106.5     65.7     4.26    3221    98.0    65000   12860   1.066  !DANGEROUS LOAD-DO NOT USE!
Elcho 17                            94.7     60.6     3.93    3207   100.0    65000   11664   1.080  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-17                  94.7     60.6     3.93    3207   100.0    65000   11664   1.080  !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum                     106.7     70.9     4.60    3204    99.5    65000   12328   1.074  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-23                 110.0     65.7     4.26    3200   100.0    64815   11721   1.088  !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214                        110.0     69.7     4.52    3199    98.1    64608   12635   1.068  !DANGEROUS LOAD-DO NOT USE!
Rottweil R905                      108.5     65.7     4.26    3191    97.6    65000   12580   1.082  !DANGEROUS LOAD-DO NOT USE!
ADI AR 2209                        103.4     62.8     4.07    3186    98.9    65000   12269   1.072  !DANGEROUS LOAD-DO NOT USE!
IMR 7828                           110.0     65.2     4.23    3186    97.6    61698   12849   1.092  ! Near Maximum !
Alliant Reloder-16                 101.3     60.2     3.90    3184   100.0    65000   11522   1.090  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19                 104.0     63.5     4.11    3184    98.9    65000   12343   1.080  !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 518                100.3     63.2     4.09    3184    99.9    65000   12078   1.085  !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 62                   98.1     62.7     4.06    3182   100.0    65000   11762   1.097  !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 511                 96.3     62.6     4.06    3181    99.9    65000   11998   1.085  !DANGEROUS LOAD-DO NOT USE!
Ramshot Hunter                      99.5     62.7     4.06    3180    99.9    65000   11981   1.085  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414                        94.0     60.7     3.93    3179    99.7    65000   12032   1.087  !DANGEROUS LOAD-DO NOT USE!
Winchester 760                      94.0     60.7     3.93    3179    99.7    65000   12032   1.087  !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation         104.7     63.9     4.14    3176    98.9    65000   12250   1.080  !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT ~approximation       110.0     68.5     4.44    3175    95.9    64787   12604   1.073  !DANGEROUS LOAD-DO NOT USE!
Somchem S365                       101.3     61.5     3.98    3169   100.0    65000   11133   1.094  !DANGEROUS LOAD-DO NOT USE!
Norma URP                           99.1     59.8     3.88    3159   100.0    65000   11481   1.092  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550                     96.3     60.0     3.89    3159   100.0    65000   11622   1.095  !DANGEROUS LOAD-DO NOT USE!
Bofors RP19 ~approximation          99.1     59.8     3.88    3159   100.0    65000   11477   1.092  !DANGEROUS LOAD-DO NOT USE!
Norma 204                           98.6     62.2     4.03    3158    98.7    65000   12020   1.080  !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation          101.8     62.2     4.03    3158    98.7    65000   12020   1.080  !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4                        101.8     62.2     4.03    3158    98.7    65000   12020   1.080  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25                 110.0     66.8     4.33    3156   100.0    57813   12545   1.128  ! Near Maximum !
Accurate 4350                       98.2     59.9     3.88    3154   100.0    65000   11442   1.107  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 SC                   105.1     64.8     4.20    3153    97.3    65000   12113   1.077  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831                      109.3     64.8     4.20    3153    97.3    65000   12113   1.077  !DANGEROUS LOAD-DO NOT USE!
Somchem S385                       104.2     64.3     4.17    3144    99.5    65000   11798   1.098  !DANGEROUS LOAD-DO NOT USE!
IMR 4831                           103.9     60.7     3.94    3139   100.0    65000   11228   1.100  !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 11                   92.7     58.4     3.79    3136   100.0    65000   11062   1.090  !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 NT ~approximation        99.4     61.6     3.99    3135    99.6    65000   11602   1.092  !DANGEROUS LOAD-DO NOT USE!
Accurate 3100                      107.3     65.5     4.24    3130    99.9    65000   11461   1.111  !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780             102.3     65.8     4.27    3130    98.8    65000   11683   1.085  !DANGEROUS LOAD-DO NOT USE!
Rottweil R904                      102.7     61.8     4.00    3126    98.0    65000   11713   1.082  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N165                    109.5     66.1     4.28    3126    99.2    65000   11496   1.089  !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 52                   90.1     56.8     3.68    3125   100.0    65000   10779   1.098  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-15                  90.3     55.1     3.57    3121   100.0    65000   10957   1.095  !DANGEROUS LOAD-DO NOT USE!
Raufoss RA11                        90.3     55.1     3.57    3121   100.0    65000   10957   1.095  !DANGEROUS LOAD-DO NOT USE!
Bofors RP11 ~approximation          90.3     55.1     3.57    3121   100.0    65000   10957   1.095  !DANGEROUS LOAD-DO NOT USE!
Lovex S070                          98.7     59.6     3.86    3120    99.8    65000   11424   1.100  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4350                      101.5     60.6     3.93    3119    99.4    65000   11393   1.085  !DANGEROUS LOAD-DO NOT USE!
IMR 4350                            99.6     60.5     3.92    3118    99.5    65000   11372   1.085  !DANGEROUS LOAD-DO NOT USE!
IMR 4955 Enduron                   106.3     63.1     4.09    3116    97.5    65000   11748   1.082  !DANGEROUS LOAD-DO NOT USE!
Norma 203B                          90.7     55.4     3.59    3116   100.0    65000   10866   1.097  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H380                        91.6     57.1     3.70    3116   100.0    65000   11101   1.099  !DANGEROUS LOAD-DO NOT USE!
Hodgdon Hybrid 100V                101.7     60.0     3.89    3114   100.0    65000   10581   1.092  !DANGEROUS LOAD-DO NOT USE!
Bofors RP7 NT ~approximation        93.6     57.7     3.74    3114    99.8    65000   11090   1.074  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N160                    109.5     64.1     4.15    3107    97.9    65000   11481   1.085  !DANGEROUS LOAD-DO NOT USE!
IMR 4320                            92.3     55.4     3.59    3103   100.0    65000   10570   1.083  !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 50                   91.6     58.2     3.77    3103    99.9    65000   11101   1.093  !DANGEROUS LOAD-DO NOT USE!
IMR 4451 Enduron                    95.4     57.5     3.73    3102    99.6    65000   11180   1.082  !DANGEROUS LOAD-DO NOT USE!
Bofors RP3                          91.9     56.7     3.67    3102   100.0    65000   10683   1.110  !DANGEROUS LOAD-DO NOT USE!
Norma 203 old                       91.9     56.7     3.67    3102   100.0    65000   10683   1.110  !DANGEROUS LOAD-DO NOT USE!
Bofors RP7                          96.5     57.8     3.75    3100    99.4    65000   11247   1.093  !DANGEROUS LOAD-DO NOT USE!
Rottweil R907                       96.5     57.8     3.75    3100    99.4    65000   11247   1.093  !DANGEROUS LOAD-DO NOT USE!
Elcho TR140 - preliminary data      91.2     57.5     3.73    3099   100.0    65000   10817   1.095  !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC                        93.5     57.9     3.75    3099    99.4    65000   11239   1.093  !DANGEROUS LOAD-DO NOT USE!
Rottweil R903                       93.9     56.7     3.68    3097   100.0    65000   10598   1.110  !DANGEROUS LOAD-DO NOT USE!
Lovex S065                          97.7     58.3     3.78    3096   100.0    65000   11002   1.099  !DANGEROUS LOAD-DO NOT USE!
Somchem S355                        94.2     56.2     3.64    3094   100.0    65000   10617   1.103  !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 NT ~approximation        95.3     57.8     3.74    3089   100.0    65000   10792   1.084  !DANGEROUS LOAD-DO NOT USE!
Somchem S361                       101.5     66.0     4.27    3089    97.3    65000   11444   1.094  !DANGEROUS LOAD-DO NOT USE!
Hodgdon VARGET                      93.3     55.1     3.57    3087   100.0    65000   10591   1.085  !DANGEROUS LOAD-DO NOT USE!
ADI AR 2208                         93.0     55.1     3.57    3087   100.0    65000   10591   1.085  !DANGEROUS LOAD-DO NOT USE!
IMR 4064                            93.8     54.1     3.50    3079   100.0    65000   10394   1.089  !DANGEROUS LOAD-DO NOT USE!
IMR 4166 Enduron                    94.6     55.3     3.58    3078    99.7    65000   10842   1.084  !DANGEROUS LOAD-DO NOT USE!
Lovex S062                          91.4     54.3     3.52    3068   100.0    65000   10226   1.104  !DANGEROUS LOAD-DO NOT USE!
Bofors RP30                        110.0     67.1     4.35    3064    96.5    52728   12909   1.187
Norma MRP 2                        110.0     67.1     4.35    3064    96.5    52728   12909   1.187
Vihtavuori N570                    110.0     70.8     4.59    3056    90.2    51351   13625   1.193
Accurate 4064                       91.4     54.6     3.54    3054   100.0    65000   10037   1.130  !DANGEROUS LOAD-DO NOT USE!
Rottweil R902                       90.5     53.2     3.45    3051   100.0    65000   10064   1.106  !DANGEROUS LOAD-DO NOT USE!
Accurate 2700                       93.5     59.6     3.86    3048    99.3    65000   10609   1.097  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N150                     99.3     57.2     3.70    3047   100.0    65000    9991   1.103  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N540                     90.2     55.7     3.61    3044   100.0    65000   10009   1.103  !DANGEROUS LOAD-DO NOT USE!
Lovex S071                         110.0     63.5     4.11    3029    99.6    57889   11302   1.171  ! Near Maximum !
IMR 7977 Enduron                   110.0     66.4     4.30    3021    89.9    64110   11087   1.094  ! Near Maximum !
Vihtavuori N140                     90.1     53.9     3.49    3014   100.0    65000    9495   1.103  !DANGEROUS LOAD-DO NOT USE!
ADI AR 2217                        110.0     66.4     4.30    3005    95.7    53071   12066   1.170
Hodgdon H1000                      110.0     66.4     4.30    3005    95.7    53071   12066   1.170
Vihtavuori N135                     95.6     52.9     3.43    3001   100.0    65000    9267   1.113  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-33                 110.0     72.8     4.72    2969    89.2    48090   13158   1.233
ADI AR 2225                        110.0     67.5     4.37    2940    97.3    45985   12629   1.253
Hodgdon Retumbo                    110.0     67.5     4.37    2940    97.3    45985   12629   1.253
ReloadSwiss RS 80                  110.0     72.8     4.72    2914    88.7    45838   12943   1.259
Lovex D100                         110.0     72.2     4.68    2902    85.0    53641   11165   1.185
ADI AR 2218                        110.0     71.5     4.63    2885    85.4    46485   12914   1.248
Vihtavuori 24N41                   110.0     71.5     4.63    2864    81.6    49301   11542   1.222
Vihtavuori N170                    110.0     66.4     4.30    2835    87.5    48022   11194   1.261
Norma 217                          110.0     66.1     4.28    2830    94.4    39955   12512   1.349
Hodgdon H870                       110.0     69.3     4.49    2800    87.7    40709   12293   1.336
Hodgdon 50BMG                      110.0     68.2     4.42    2655    72.8    39798   10576   1.356
Hodgdon US 869                     110.0     71.5     4.63    2655    76.9    39637   10644   1.361
SNPE Vectan SP 13                  110.0     68.6     4.45    2598    81.3    35840   10541   1.428
Accurate 8700                      110.0     70.1     4.54    2564    79.5    35630   10379   1.426
PB Clermont PCL 513/520/9520       110.0     68.6     4.45    2527    77.8    33752   10151   1.466
NC A3502 ,test only                110.0     65.7     4.26    2325    53.5    32094    7589   1.503
 
When I was shooting the 140 Bt out of my 280 AI I had outstanding results with RL-17, and was over 3200 with a 24" tube. When I switched to the 140 AB however it didn't work so well in my gun. I ended up using RL22 and 7828 for the 140 AB. I have a friend that is using RL-23 with the 162 ELDX and is getting about 3100 out of a 26" tube. I use RL-26 in mine with the 168 ABLR.

I would take a look and see if there is any data for either of these powders for the 280 Remington and go from there. I use a ton of RL-26 and really like what it does.
 
I have loaded 140 gr. Partitions with IMR7828SC and getting 3230 fps on the chonograph and good accuracy. I'm going to try loading up some Accubonds after the first of the year. I really like the AccuBond as well as the Partition. Sorry I cannot help with the two powders you list but IMR7828SC has been great to me.
 
I run Hodgdon Retumbo in my 6.5 Gibbs with a 140, shoots sub 1/4 Moa @ 3280 fps, tried RE22 but its lot to lot variance was unacceptable, the 280 AI should do well with retumbo and its a single base powder and not as temp sensitive as the RE series from Alliant.
RR
 
Tagging in looking at these powders to try. Currently 4831sc, 7828ssc been good for me with 140gr bt, 180gr Berger, 168gr LRAB

Sent from my SM-G950U using Tapatalk
 
jmad_81":1x313qyu said:
When I was shooting the 140 Bt out of my 280 AI I had outstanding results with RL-17, and was over 3200 with a 24" tube. When I switched to the 140 AB however it didn't work so well in my gun. I ended up using RL22 and 7828 for the 140 AB. I have a friend that is using RL-23 with the 162 ELDX and is getting about 3100 out of a 26" tube. I use RL-26 in mine with the 168 ABLR.

I would take a look and see if there is any data for either of these powders for the 280 Remington and go from there. I use a ton of RL-26 and really like what it does.
Click to expand...
What kind of Velocity are you seeing with the 168 ABLR out of your 280AI?
 
jmad_81":3hr90spt said:
2950 fps with 60.5 gr. RL-26 3.340" WRLM primers out of a 24" tube.
Click to expand...
Thank You.

That sounds like Good Everything-without-claws-Medicine.
 
Your very welcome.

It works for things with claws as well. That rifle has a black bear to its name with some 120 BT. Taken at 388 yards.
 
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