QL for a 260 rem with Ramshot hunter-Dr can you help?

rmarshall · Mar 27, 2014

I have a 260 rem, I want to try hunter with 120bt, 125 pt, and a 130 ab. Been shooting r19 and wanted to try the hunter I picked up. Thanks for the replies

DrMike · Mar 27, 2014

Code:

Cartridge          : .260 Rem
Bullet             : .264, 130, Nosler AccuBond 56902
Useable Case Capaci: 46.056 grain H2O = 2.990 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Ramshot Hunter

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    35.84   2272    1490   30469   8737     89.8    1.490
-18.0   84    36.74   2329    1566   32525   9023     91.1    1.451
-16.0   86    37.63   2387    1645   34727   9301     92.3    1.414
-14.0   88    38.53   2445    1726   37080   9569     93.4    1.376
-12.0   90    39.42   2503    1808   39589   9826     94.5    1.333
-10.0   92    40.32   2561    1893   42295  10070     95.4    1.293
-08.0   94    41.22   2619    1980   45185  10302     96.3    1.254
-06.0   96    42.11   2677    2068   48285  10519     97.1    1.216
-04.0   98    43.01   2734    2158   51611  10720     97.8    1.180  ! Near Maximum !
-02.0  100    43.90   2792    2251   55187  10905     98.4    1.144  ! Near Maximum !
+00.0  102    44.80   2850    2344   59027  11072     98.9    1.110  ! Near Maximum !
+02.0  104    45.70   2907    2440   63173  11221     99.3    1.077  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    46.59   2964    2537   67605  11350     99.7    1.046  !DANGEROUS LOAD-DO NOT USE!
+06.0  108    47.49   3021    2635   72364  11459     99.9    1.015  !DANGEROUS LOAD-DO NOT USE!
+08.0  110    48.38   3078    2735   77492  11546    100.0    0.986  !DANGEROUS LOAD-DO NOT USE!
+10.0  112    49.28   3135    2836   83026  11612    100.0    0.957  !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    44.80   2979    2562   71280  10741    100.0    1.028  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    44.80   2670    2058   47714  10810     93.4    1.217

Code:

Cartridge          : .260 Rem
Bullet             : .264, 125, Nosler PART SP 16320
Useable Case Capaci: 47.960 grain H2O = 3.114 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Ramshot Hunter

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   81    37.20   2324    1500   30529   9039     89.4    1.462
-18.0   84    38.13   2383    1577   32595   9338     90.8    1.425
-16.0   86    39.06   2443    1656   34804   9629     92.0    1.389
-14.0   88    39.99   2502    1737   37164   9909     93.2    1.349
-12.0   90    40.92   2561    1821   39692  10178     94.2    1.308
-10.0   92    41.85   2621    1907   42400  10435     95.2    1.268
-08.0   94    42.78   2680    1994   45301  10678     96.2    1.230
-06.0   96    43.71   2740    2084   48412  10906     97.0    1.192
-04.0   98    44.64   2799    2175   51752  11118     97.7    1.157  ! Near Maximum !
-02.0  100    45.57   2859    2268   55340  11313     98.3    1.122  ! Near Maximum !
+00.0  102    46.50   2918    2363   59200  11489     98.9    1.089  ! Near Maximum !
+02.0  104    47.43   2977    2460   63341  11646     99.3    1.056  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    48.36   3036    2558   67770  11783     99.6    1.025  !DANGEROUS LOAD-DO NOT USE!
+06.0  108    49.29   3094    2658   72532  11898     99.8    0.995  !DANGEROUS LOAD-DO NOT USE!
+08.0  110    50.22   3153    2759   77661  11992    100.0    0.966  !DANGEROUS LOAD-DO NOT USE!
+10.0  112    51.15   3211    2861   83193  12062    100.0    0.938  !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    46.50   3052    2585   71411  11165    100.0    1.008  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    46.50   2733    2073   47834  11194     93.2    1.194

Code:

Cartridge          : .260 Rem
Bullet             : .264, 120, Nosler BalTip 26120
Useable Case Capaci: 47.442 grain H2O = 3.080 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Ramshot Hunter

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    37.36   2359    1483   30389   8911     88.4    1.439
-18.0   85    38.29   2419    1560   32465   9213     89.8    1.402
-16.0   87    39.23   2480    1639   34684   9506     91.1    1.365
-14.0   89    40.16   2541    1721   37063   9790     92.3    1.330
-12.0   91    41.10   2603    1805   39611  10063     93.5    1.286
-10.0   93    42.03   2664    1891   42344  10324     94.5    1.247
-08.0   95    42.96   2725    1979   45276  10571     95.5    1.208
-06.0   97    43.90   2787    2069   48427  10804     96.4    1.171
-04.0   99    44.83   2848    2162   51814  11021     97.2    1.135  ! Near Maximum !
-02.0  101    45.77   2910    2256   55460  11221     97.9    1.101  ! Near Maximum !
+00.0  103    46.70   2971    2352   59387  11403     98.5    1.068  ! Near Maximum !
+02.0  105    47.63   3032    2450   63627  11565     99.0    1.036  !DANGEROUS LOAD-DO NOT USE!
+04.0  108    48.57   3094    2550   68203  11707     99.4    1.005  !DANGEROUS LOAD-DO NOT USE!
+06.0  110    49.50   3154    2651   73118  11828     99.7    0.974  !DANGEROUS LOAD-DO NOT USE!
+08.0  112    50.44   3215    2754   78419  11925     99.9    0.946  !DANGEROUS LOAD-DO NOT USE!
+10.0  114    51.37   3275    2859   84154  12000    100.0    0.918  !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    103    46.70   3112    2581   71854  11123    100.0    0.988  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    103    46.70   2778    2057   48017  11050     92.4    1.172

rmarshall · Mar 28, 2014

Thanks Dr. Mike, do you think it would be a good powder for a 260 rem and those bullet weights? How does a 125 pt do with r17?

DrMike · Mar 28, 2014

Code:

Cartridge          : .260 Rem
Bullet             : .264, 125, Nosler PART SP 16320
Useable Case Capaci: 47.960 grain H2O = 3.114 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Alliant Reloder-17

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   78    36.08   2377    1569   30764   9482     94.8    1.445
-18.0   80    36.98   2437    1648   32833   9756     95.9    1.408
-16.0   82    37.88   2496    1730   35044  10014     96.9    1.371
-14.0   84    38.79   2556    1813   37397  10253     97.7    1.336
-12.0   86    39.69   2615    1898   39932  10473     98.4    1.295
-10.0   88    40.59   2674    1985   42630  10673     99.0    1.255
-08.0   89    41.49   2733    2073   45526  10851     99.5    1.217
-06.0   91    42.39   2791    2162   48625  11006     99.8    1.180
-04.0   93    43.30   2849    2253   51946  11136    100.0    1.145  ! Near Maximum !
-02.0   95    44.20   2906    2344   55511  11242    100.0    1.111  ! Near Maximum !
+00.0   97    45.10   2963    2436   59340  11337    100.0    1.078  ! Near Maximum !
+02.0   99    46.00   3019    2530   63460  11428    100.0    1.047  !DANGEROUS LOAD-DO NOT USE!
+04.0  101    46.90   3075    2624   67893  11516    100.0    1.016  !DANGEROUS LOAD-DO NOT USE!
+06.0  103    47.81   3130    2719   72672  11600    100.0    0.987  !DANGEROUS LOAD-DO NOT USE!
+08.0  105    48.71   3185    2815   77828  11680    100.0    0.959  !DANGEROUS LOAD-DO NOT USE!
+10.0  107    49.61   3239    2912   83398  11756    100.0    0.931  !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     97    45.10   3078    2629   72479  10887    100.0    0.998  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     97    45.10   2788    2157   47908  11593     97.7    1.184