Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 145gr | Speer Boat-Tail bullet and 105 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 2495 | <<locked>> | 84% | 56,463 psi | 87% | 2828 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,841 psi | 89% | 2897 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,184 psi | 79% | 2874 fps | 99.1% |
| Accurate 4064 | <<locked>> | 86% | 56,724 psi | 87% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,232 psi | 88% | 2986 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,840 psi | 86% | 2910 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,971 psi | 88% | 2917 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 58,450 psi | 90% | 3028 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 58,030 psi | 89% | 2907 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,217 psi | 86% | 3041 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,682 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 57,841 psi | 89% | 2959 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 57,856 psi | 89% | 3041 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,680 psi | 86% | 3018 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,421 psi | 88% | 3015 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,995 psi | 78% | 2956 fps | 97.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,109 psi | 74% | 2897 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,047 psi | 65% | 2808 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,100 psi | 85% | 3091 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,695 psi | 86% | 2927 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,891 psi | 72% | 2877 fps | 96.1% |
| Bofors RP3 | <<locked>> | 88% | 58,479 psi | 90% | 2953 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,995 psi | 78% | 2956 fps | 97.2% |
| Bofors RP7 | <<locked>> | 92% | 58,015 psi | 89% | 2940 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 58,189 psi | 90% | 2940 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 55,448 psi | 85% | 2920 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 55,912 psi | 86% | 2986 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 90% | 55,854 psi | 86% | 2946 fps | 98.2% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 56,202 psi | 86% | 2963 fps | 96% |
| Hodgdon H4895 | <<locked>> | 82% | 56,449 psi | 87% | 2920 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 58,146 psi | 89% | 2963 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,550 psi | 87% | 2956 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,318 psi | 87% | 3025 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,245 psi | 56% | 1804 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,334 psi | 88% | 2920 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,101 psi | 88% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,463 psi | 87% | 2897 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,637 psi | 86% | 2877 fps | 99% |
| IMR 4350 | <<locked>> | 96% | 58,624 psi | 90% | 2969 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,014 psi | 86% | 2910 fps | 99% |
| IMR 4831 | <<locked>> | 96% | 57,725 psi | 89% | 2979 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,811 psi | 86% | 2936 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 57,812 psi | 89% | 2953 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 82% | 58,030 psi | 89% | 2907 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 56,144 psi | 86% | 2881 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 58,059 psi | 89% | 2881 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,579 psi | 87% | 2890 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,101 psi | 86% | 2910 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 57,276 psi | 88% | 2949 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,583 psi | 66% | 2723 fps | 97.6% |
| Norma 201 | <<locked>> | 84% | 58,030 psi | 89% | 2904 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,998 psi | 85% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,087 psi | 88% | 2946 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,898 psi | 86% | 2966 fps | 97.7% |
| Norma MRPᴾ | <<locked>> | 100% | 54,114 psi | 83% | 3041 fps | 99% |
| Norma URP | <<locked>> | 94% | 55,898 psi | 86% | 2972 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 58,218 psi | 90% | 2976 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 58,465 psi | 90% | 3028 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,382 psi | 68% | 2808 fps | 96.2% |
| Ramshot TAC | <<locked>> | 82% | 58,102 psi | 89% | 2933 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 58,189 psi | 90% | 2949 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,883 psi | 57% | 1847 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,477 psi | 85% | 2904 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,172 psi | 85% | 2976 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,172 psi | 85% | 3012 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,174 psi | 88% | 3012 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,724 psi | 86% | 3038 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 58,479 psi | 90% | 2900 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 58,610 psi | 90% | 2949 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,318 psi | 87% | 2940 fps | 96.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,855 psi | 87% | 3002 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 92% | 58,015 psi | 89% | 2940 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,101 psi | 86% | 2910 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,144 psi | 86% | 2881 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,579 psi | 87% | 2890 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,276 psi | 88% | 2949 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,463 psi | 87% | 2956 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,898 psi | 88% | 2913 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,812 psi | 89% | 2933 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,288 psi | 85% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,159 psi | 86% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,825 psi | 86% | 2858 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,347 psi | 87% | 2999 fps | 98.1% |
| Somchem S335 | <<locked>> | 84% | 58,523 psi | 90% | 2828 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,652 psi | 87% | 2900 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 58,508 psi | 90% | 2943 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 58,465 psi | 90% | 2936 fps | 96.4% |
| Somchem S365 | <<locked>> | 96% | 54,824 psi | 84% | 2972 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,406 psi | 88% | 2976 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 82% | 55,753 psi | 86% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,419 psi | 85% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,622 psi | 86% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,376 psi | 87% | 2871 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 58,102 psi | 89% | 2966 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,487 psi | 76% | 2835 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 82% | 58,407 psi | 90% | 2904 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 57,508 psi | 88% | 2874 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,276 psi | 88% | 2972 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,809 psi | 83% | 2976 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,592 psi | 84% | 3028 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 58,015 psi | 89% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,912 psi | 86% | 2986 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,323 psi | 67% | 2943 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 57,957 psi | 89% | 2940 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,853 psi | 83% | 2910 fps | 97.5% |
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 2495 | <<locked>> | 80% | 49,647 psi | 76% | 2733 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,587 psi | 73% | 2726 fps | 97% |
| Accurate 3100 | <<locked>> | 90% | 36,463 psi | 56% | 2592 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 46,992 psi | 72% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,360 psi | 54% | 2585 fps | 97.2% |
| ADI AR 2206H | <<locked>> | 80% | 52,257 psi | 80% | 2854 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,498 psi | 68% | 2707 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 45,005 psi | 69% | 2795 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,302 psi | 84% | 2854 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,631 psi | 75% | 2917 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,715 psi | 69% | 2730 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,761 psi | 73% | 2799 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,896 psi | 54% | 2598 fps | 97.3% |
| Alliant Reloder-17 | 51.5 gr | 80% | 39,160 psi | 60% | 2723 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,440 psi | 68% | 2785 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,614 psi | 69% | 2835 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,151 psi | 42% | 2402 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,737 psi | 53% | 2628 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 86% | 33,257 psi | 51% | 2635 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,127 psi | 80% | 2874 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 43,743 psi | 67% | 2815 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 45,049 psi | 69% | 2743 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,614 psi | 69% | 2835 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 39,740 psi | 61% | 2605 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 54,143 psi | 83% | 2881 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,440 psi | 70% | 2749 fps | 99% |
| Hodgdon H414 | <<locked>> | 80% | 37,420 psi | 58% | 2631 fps | 95% |
| Hodgdon H4350 | <<locked>> | 82% | 43,149 psi | 66% | 2713 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 98% | 52,373 psi | 81% | 2904 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 52,808 psi | 81% | 2864 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,256 psi | 50% | 2490 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,400 psi | 76% | 2844 fps | 100% |
| Hodgdon Superformance | 55.8 gr | 82% | 39,044 psi | 60% | 2697 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 42% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,647 psi | 78% | 2815 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,490 psi | 82% | 2848 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,789 psi | 72% | 2743 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,008 psi | 75% | 2766 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 40,306 psi | 62% | 2641 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,292 psi | 64% | 2641 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 34,156 psi | 53% | 2539 fps | 96.9% |
| IMR 4895 | <<locked>> | 80% | 49,008 psi | 75% | 2828 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 50,908 psi | 78% | 2841 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 54,302 psi | 84% | 2854 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,417 psi | 81% | 2828 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,430 psi | 79% | 2782 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,963 psi | 72% | 2740 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,798 psi | 60% | 2592 fps | 96.9% |
| Lovex S070 | <<locked>> | 80% | 36,941 psi | 57% | 2566 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 35,056 psi | 54% | 2559 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 51,271 psi | 79% | 2802 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,677 psi | 80% | 2799 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,137 psi | 73% | 2785 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,600 psi | 70% | 2785 fps | 95.4% |
| Norma MRP | <<locked>> | 90% | 38,377 psi | 59% | 2730 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 35,389 psi | 54% | 2582 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 47,311 psi | 73% | 2805 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,680 psi | 56% | 2625 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 41,292 psi | 64% | 2743 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 54,505 psi | 84% | 2877 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 54,476 psi | 84% | 2894 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,572 psi | 42% | 1654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,498 psi | 70% | 2733 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,474 psi | 79% | 2917 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,640 psi | 64% | 2782 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,157 psi | 54% | 2602 fps | 96.8% |
| ReloadSwiss RS 70 | 52.3 gr | 80% | 34,301 psi | 53% | 2602 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 48,863 psi | 75% | 2753 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,337 psi | 65% | 2687 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 49,661 psi | 76% | 2828 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 92% | 43,497 psi | 67% | 2769 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 39,740 psi | 61% | 2605 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,798 psi | 60% | 2592 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,417 psi | 81% | 2828 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,963 psi | 72% | 2740 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,941 psi | 57% | 2566 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,308 psi | 67% | 2736 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,185 psi | 82% | 2858 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,691 psi | 78% | 2825 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,141 psi | 80% | 2736 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,976 psi | 68% | 2605 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,826 psi | 58% | 2530 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,091 psi | 66% | 2762 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 51,880 psi | 80% | 2736 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,026 psi | 82% | 2848 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,844 psi | 66% | 2687 fps | 99.8% |
| Somchem S361 | <<locked>> | 96% | 54,694 psi | 84% | 2877 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 31,908 psi | 49% | 2539 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 41,408 psi | 64% | 2694 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 52,663 psi | 81% | 2723 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,979 psi | 75% | 2723 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,095 psi | 76% | 2733 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,814 psi | 63% | 2618 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,695 psi | 56% | 2582 fps | 97.4% |
| Vihtavuori N165 | <<locked>> | 96% | 43,497 psi | 67% | 2726 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 54,853 psi | 84% | 2851 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 47,427 psi | 73% | 2726 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,245 psi | 56% | 2585 fps | 97.1% |
| Vihtavuori N555 | <<locked>> | 82% | 29,689 psi | 46% | 2477 fps | 95.7% |
| Vihtavuori N560 | <<locked>> | 98% | 50,937 psi | 78% | 2966 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,085 psi | 56% | 2556 fps | 99.1% |
| Winchester 760 | <<locked>> | 80% | 37,623 psi | 58% | 2635 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 86% | 27,311 psi | 42% | 2487 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,749 psi | 78% | 2835 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,830 psi | 67% | 2736 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 117 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 145gr | Speer Boat-Tail. Alliant Reloder-26 delivers the highest muzzle velocity at 3,091 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,091 fps. Accurate 3100 gives the best case fill at 100 %, and 117 of the 117 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:12.0 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 | 145gr | Speer Boat-Tail they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2225, Baschieri & Pellagri 109, Bofors RP30 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.