Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 140gr | Sierra GameKing bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 56,956 psi | 88% | 2841 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 56,231 psi | 87% | 2867 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,682 psi | 89% | 2936 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 58,349 psi | 90% | 2933 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,079 psi | 72% | 2838 fps | 98% |
| Accurate 4064 | <<locked>> | 88% | 56,521 psi | 87% | 2920 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,029 psi | 88% | 3022 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 56,217 psi | 86% | 2953 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 57,305 psi | 88% | 2956 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,505 psi | 84% | 2999 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 58,508 psi | 90% | 2949 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,362 psi | 87% | 2867 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,304 psi | 87% | 3081 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 57,798 psi | 89% | 2979 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 58,001 psi | 89% | 2999 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 57,479 psi | 88% | 3074 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,434 psi | 85% | 3054 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,476 psi | 82% | 2982 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,541 psi | 69% | 2871 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,001 psi | 60% | 2762 fps | 96.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,531 psi | 78% | 3054 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,173 psi | 86% | 2969 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 58,595 psi | 90% | 2995 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 58,262 psi | 90% | 2972 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,173 psi | 86% | 2874 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 58,320 psi | 90% | 2982 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,622 psi | 86% | 2956 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 55,579 psi | 86% | 3015 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 92% | 55,912 psi | 86% | 2976 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 84% | 56,811 psi | 87% | 2963 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,754 psi | 89% | 2995 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,608 psi | 87% | 2995 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,985 psi | 86% | 3054 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,042 psi | 55% | 1818 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 57,870 psi | 89% | 2963 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,174 psi | 88% | 2940 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,652 psi | 87% | 2936 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,362 psi | 87% | 2920 fps | 98.6% |
| IMR 4350 | <<locked>> | 98% | 58,624 psi | 90% | 2999 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,478 psi | 87% | 2949 fps | 98.6% |
| IMR 4831 | <<locked>> | 98% | 57,363 psi | 88% | 3012 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 56,115 psi | 86% | 2979 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 58,508 psi | 90% | 2949 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,347 psi | 87% | 2927 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 58,726 psi | 90% | 2927 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,637 psi | 87% | 2930 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,188 psi | 86% | 2943 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 57,406 psi | 88% | 2982 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,102 psi | 60% | 2684 fps | 96% |
| Norma 201 | <<locked>> | 86% | 58,189 psi | 90% | 2943 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,593 psi | 86% | 2894 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,217 psi | 88% | 2982 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,825 psi | 86% | 2995 fps | 97.1% |
| Norma MRPᴾ | <<locked>> | 100% | 49,879 psi | 77% | 3002 fps | 97.7% |
| Norma URP | <<locked>> | 96% | 55,782 psi | 86% | 3005 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 58,102 psi | 89% | 3012 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 58,305 psi | 90% | 3061 fps | 99.5% |
| Ramshot TAC | <<locked>> | 82% | 55,042 psi | 85% | 2920 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 58,769 psi | 90% | 2992 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,666 psi | 56% | 1864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,535 psi | 85% | 2936 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,274 psi | 85% | 3015 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,882 psi | 84% | 3048 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,695 psi | 87% | 3041 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,695 psi | 86% | 3074 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 55,854 psi | 86% | 2874 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,347 psi | 85% | 2894 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 58,465 psi | 90% | 2986 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 56,376 psi | 87% | 2969 fps | 96.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,620 psi | 81% | 2969 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 94% | 58,262 psi | 90% | 2972 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,188 psi | 86% | 2943 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,347 psi | 87% | 2927 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,637 psi | 87% | 2930 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,406 psi | 88% | 2982 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,623 psi | 87% | 2999 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,493 psi | 88% | 2956 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 58,073 psi | 89% | 2976 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,057 psi | 86% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,478 psi | 87% | 2825 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,173 psi | 86% | 2894 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,127 psi | 80% | 2963 fps | 96.8% |
| Somchem S335 | <<locked>> | 86% | 58,798 psi | 90% | 2871 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,246 psi | 88% | 2946 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 58,465 psi | 90% | 2982 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,957 psi | 89% | 3058 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,374 psi | 82% | 2946 fps | 97.8% |
| Vihtavuori N133 | <<locked>> | 84% | 56,449 psi | 87% | 2812 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,550 psi | 85% | 2854 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,028 psi | 86% | 2871 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,347 psi | 87% | 2907 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 58,175 psi | 89% | 3002 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 82% | 55,274 psi | 85% | 2897 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,827 psi | 89% | 2917 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 57,058 psi | 88% | 3005 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,603 psi | 76% | 2946 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 58,146 psi | 89% | 2972 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,854 psi | 86% | 2949 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,840 psi | 86% | 3018 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,059 psi | 62% | 2900 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 58,233 psi | 90% | 2982 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,038 psi | 77% | 2877 fps | 96% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 53,345 psi | 82% | 2789 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,485 psi | 72% | 2726 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 54,056 psi | 83% | 2884 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,020 psi | 69% | 2707 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 38,450 psi | 59% | 2671 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 43,990 psi | 68% | 2726 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,750 psi | 50% | 2556 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 49,458 psi | 76% | 2844 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 42,018 psi | 65% | 2690 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 48,037 psi | 74% | 2881 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,561 psi | 79% | 2844 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,924 psi | 81% | 2822 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,585 psi | 70% | 2894 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,032 psi | 65% | 2717 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,078 psi | 69% | 2782 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,735 psi | 50% | 2569 fps | 95.7% |
| Alliant Reloder-17 | 49.7 gr | 80% | 36,564 psi | 56% | 2697 fps | 98.7% |
| Alliant Reloder-19 | <<locked>> | 96% | 47,268 psi | 73% | 2871 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,572 psi | 44% | 2474 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,622 psi | 56% | 2703 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 90% | 35,244 psi | 54% | 2720 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,950 psi | 75% | 2854 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 42,076 psi | 65% | 2723 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 42,438 psi | 65% | 2694 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,040 psi | 82% | 2828 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,068 psi | 79% | 2874 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,612 psi | 66% | 2726 fps | 98% |
| Hodgdon H414 | <<locked>> | 84% | 40,016 psi | 62% | 2723 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 86% | 46,137 psi | 71% | 2802 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 49,980 psi | 77% | 2854 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,226 psi | 47% | 2467 fps | 96.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,253 psi | 71% | 2831 fps | 100% |
| Hodgdon Superformance | 56.5 gr | 86% | 42,090 psi | 65% | 2792 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,876 psi | 41% | 1624 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,732 psi | 73% | 2802 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 50,198 psi | 77% | 2841 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,164 psi | 68% | 2726 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,615 psi | 72% | 2753 fps | 96.9% |
| IMR 4350 | <<locked>> | 88% | 43,076 psi | 66% | 2730 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 41,423 psi | 64% | 2674 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 31,778 psi | 49% | 2513 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 46,195 psi | 71% | 2812 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 51,561 psi | 79% | 2844 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,139 psi | 76% | 2818 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,878 psi | 75% | 2772 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 44,251 psi | 68% | 2726 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 36,521 psi | 56% | 2569 fps | 95.4% |
| Lovex S070 | <<locked>> | 84% | 39,291 psi | 60% | 2651 fps | 95.1% |
| Lovex S071 | <<locked>> | 98% | 36,695 psi | 56% | 2631 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 48,515 psi | 75% | 2792 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,849 psi | 75% | 2792 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,425 psi | 68% | 2769 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 48,849 psi | 75% | 2877 fps | 95.5% |
| Norma MRP | <<locked>> | 94% | 40,654 psi | 63% | 2812 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 32,938 psi | 51% | 2556 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 44,367 psi | 68% | 2789 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 39,030 psi | 60% | 2710 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 51,503 psi | 79% | 2861 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,256 psi | 79% | 2877 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,282 psi | 42% | 1663 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,873 psi | 66% | 2710 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,051 psi | 74% | 2894 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,914 psi | 60% | 2762 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,489 psi | 50% | 2569 fps | 95.1% |
| ReloadSwiss RS 70 | 51.8 gr | 82% | 34,534 psi | 53% | 2635 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 52,402 psi | 81% | 2825 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,108 psi | 71% | 2743 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,639 psi | 61% | 2667 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 98% | 52,779 psi | 81% | 2910 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 96% | 45,890 psi | 71% | 2848 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 84% | 42,438 psi | 65% | 2694 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,521 psi | 56% | 2569 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,139 psi | 76% | 2818 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,251 psi | 68% | 2726 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 39,291 psi | 60% | 2651 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,495 psi | 62% | 2717 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,009 psi | 77% | 2838 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,834 psi | 74% | 2812 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,400 psi | 76% | 2730 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,466 psi | 64% | 2595 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,712 psi | 63% | 2621 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 45,455 psi | 70% | 2841 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 49,255 psi | 76% | 2733 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,850 psi | 77% | 2831 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 40,263 psi | 62% | 2671 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 29,501 psi | 45% | 2507 fps | 97.8% |
| Somchem S385 | <<locked>> | 94% | 43,845 psi | 67% | 2776 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 49,864 psi | 77% | 2720 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,905 psi | 71% | 2713 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,383 psi | 71% | 2726 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,334 psi | 59% | 2602 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 34,272 psi | 53% | 2559 fps | 96% |
| Vihtavuori N530 | <<locked>> | 80% | 51,779 psi | 80% | 2841 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,672 psi | 69% | 2717 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,765 psi | 52% | 2556 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 86% | 31,256 psi | 48% | 2559 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,808 psi | 52% | 2530 fps | 98.1% |
| Winchester 748 | <<locked>> | 80% | 52,054 psi | 80% | 2894 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 40,016 psi | 62% | 2723 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,848 psi | 44% | 2566 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,761 psi | 73% | 2822 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 98% | 46,717 psi | 72% | 2822 fps | 95.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 118 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 140gr | Sierra GameKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,081 fps; across all powders the maximum-charge window runs from 1,818 fps to 3,081 fps. Accurate 3100 gives the best case fill at 100 %, and 118 of the 118 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 140gr | Sierra GameKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.