Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 145gr | Speer Grand Slam 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, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 56,724 psi | 87% | 2831 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,972 psi | 89% | 2897 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,358 psi | 79% | 2877 fps | 99.1% |
| Accurate 4064 | <<locked>> | 86% | 56,971 psi | 88% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,450 psi | 88% | 2989 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 56,028 psi | 86% | 2917 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 57,188 psi | 88% | 2920 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 58,595 psi | 90% | 3035 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 58,218 psi | 90% | 2910 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,449 psi | 87% | 3045 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,885 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 58,073 psi | 89% | 2963 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 58,059 psi | 89% | 3045 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,883 psi | 86% | 3022 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,595 psi | 89% | 3018 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,140 psi | 79% | 2956 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,298 psi | 74% | 2900 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,177 psi | 65% | 2812 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,608 psi | 86% | 3100 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,883 psi | 86% | 2930 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,036 psi | 72% | 2881 fps | 96.2% |
| Bofors RP3 | <<locked>> | 88% | 58,711 psi | 90% | 2956 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,140 psi | 79% | 2956 fps | 97.3% |
| Bofors RP7 | <<locked>> | 92% | 58,204 psi | 90% | 2943 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 58,102 psi | 89% | 2940 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 55,666 psi | 86% | 2923 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 56,159 psi | 86% | 2989 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 90% | 56,057 psi | 86% | 2946 fps | 98.2% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 56,362 psi | 87% | 2969 fps | 96.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 55,172 psi | 85% | 2949 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 82% | 56,695 psi | 87% | 2923 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 58,349 psi | 90% | 2966 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,797 psi | 87% | 2959 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,507 psi | 87% | 3028 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,332 psi | 56% | 1808 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,551 psi | 89% | 2920 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,072 psi | 88% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,652 psi | 87% | 2900 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,854 psi | 86% | 2881 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 55,332 psi | 85% | 2917 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,217 psi | 86% | 2913 fps | 99% |
| IMR 4831 | <<locked>> | 96% | 57,914 psi | 89% | 2979 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 56,043 psi | 86% | 2940 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 58,015 psi | 89% | 2956 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 82% | 58,218 psi | 90% | 2910 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 56,333 psi | 87% | 2887 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 58,262 psi | 90% | 2887 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,768 psi | 87% | 2894 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,304 psi | 87% | 2910 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 57,493 psi | 88% | 2953 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,757 psi | 66% | 2723 fps | 97.7% |
| Norma 201 | <<locked>> | 84% | 58,291 psi | 90% | 2907 fps | 100% |
| Norma 202 | <<locked>> | 84% | 58,755 psi | 90% | 2900 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,334 psi | 88% | 2949 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,057 psi | 86% | 2969 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 54,302 psi | 84% | 3045 fps | 99% |
| Norma URP | <<locked>> | 94% | 56,101 psi | 86% | 2976 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 58,421 psi | 90% | 2979 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 58,668 psi | 90% | 3031 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,759 psi | 69% | 2815 fps | 96.3% |
| Ramshot TAC | <<locked>> | 82% | 58,305 psi | 90% | 2940 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 58,407 psi | 90% | 2949 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,956 psi | 57% | 1850 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,419 psi | 85% | 2904 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,448 psi | 85% | 2979 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,390 psi | 85% | 3012 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,348 psi | 88% | 3015 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,941 psi | 86% | 3041 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 58,740 psi | 90% | 2904 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,288 psi | 85% | 2904 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,782 psi | 87% | 2946 fps | 97% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 57,014 psi | 88% | 3005 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 92% | 58,204 psi | 90% | 2943 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,304 psi | 87% | 2910 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,333 psi | 87% | 2887 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,768 psi | 87% | 2894 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,493 psi | 88% | 2953 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,666 psi | 87% | 2959 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,130 psi | 88% | 2917 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 58,030 psi | 89% | 2936 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,521 psi | 85% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,347 psi | 87% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,970 psi | 86% | 2861 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,507 psi | 87% | 2999 fps | 98.2% |
| Somchem S335 | <<locked>> | 84% | 58,769 psi | 90% | 2831 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,869 psi | 87% | 2904 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 58,740 psi | 90% | 2949 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 55,376 psi | 85% | 2979 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,609 psi | 89% | 2979 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 82% | 56,028 psi | 86% | 2769 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,651 psi | 86% | 2815 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,854 psi | 86% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,594 psi | 87% | 2874 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 58,291 psi | 90% | 2966 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,632 psi | 76% | 2838 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 82% | 58,668 psi | 90% | 2907 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 57,725 psi | 89% | 2877 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,479 psi | 88% | 2976 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,998 psi | 83% | 2976 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,737 psi | 84% | 3031 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 58,465 psi | 90% | 2940 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,420 psi | 87% | 2992 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,714 psi | 67% | 2953 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 58,175 psi | 89% | 2943 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,302 psi | 84% | 2920 fps | 97.6% |
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% | 49,603 psi | 76% | 2733 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,805 psi | 74% | 2733 fps | 97.1% |
| Accurate 3100 | <<locked>> | 90% | 36,651 psi | 56% | 2595 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 46,992 psi | 72% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,578 psi | 55% | 2589 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 52,460 psi | 81% | 2861 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,686 psi | 69% | 2710 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 45,165 psi | 69% | 2799 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,534 psi | 84% | 2858 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,878 psi | 75% | 2920 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,947 psi | 69% | 2733 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,022 psi | 74% | 2802 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,882 psi | 54% | 2598 fps | 97.4% |
| Alliant Reloder-17 | 51.7 gr | 80% | 39,363 psi | 61% | 2726 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,599 psi | 69% | 2789 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,788 psi | 69% | 2838 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,282 psi | 42% | 2405 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,867 psi | 54% | 2631 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 86% | 33,388 psi | 51% | 2638 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,344 psi | 81% | 2874 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 44,164 psi | 68% | 2825 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 45,252 psi | 70% | 2746 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,788 psi | 69% | 2838 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 39,914 psi | 61% | 2612 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 54,375 psi | 84% | 2887 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,614 psi | 70% | 2753 fps | 99% |
| Hodgdon H414 | <<locked>> | 80% | 37,579 psi | 58% | 2635 fps | 95% |
| Hodgdon H4350 | <<locked>> | 82% | 43,366 psi | 67% | 2720 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 52,823 psi | 81% | 2910 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 51,692 psi | 80% | 2890 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 53,011 psi | 82% | 2867 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,445 psi | 50% | 2497 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,647 psi | 76% | 2851 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,204 psi | 60% | 2700 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,035 psi | 42% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,865 psi | 78% | 2818 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,737 psi | 83% | 2851 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,992 psi | 72% | 2746 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,211 psi | 76% | 2772 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 40,509 psi | 62% | 2644 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,278 psi | 64% | 2641 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 34,330 psi | 53% | 2543 fps | 97% |
| IMR 4895 | <<locked>> | 80% | 49,240 psi | 76% | 2831 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,329 psi | 79% | 2848 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 54,534 psi | 84% | 2858 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,649 psi | 81% | 2835 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,648 psi | 79% | 2785 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,166 psi | 73% | 2743 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,769 psi | 60% | 2589 fps | 96.9% |
| Lovex S070 | <<locked>> | 80% | 37,159 psi | 57% | 2569 fps | 95.1% |
| Lovex S071 | <<locked>> | 94% | 35,230 psi | 54% | 2562 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 51,256 psi | 79% | 2802 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,924 psi | 80% | 2802 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,398 psi | 73% | 2789 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,788 psi | 70% | 2789 fps | 95.5% |
| Norma MRP | <<locked>> | 90% | 38,537 psi | 59% | 2733 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 35,563 psi | 55% | 2585 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 47,485 psi | 73% | 2808 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,840 psi | 57% | 2628 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 98% | 41,655 psi | 64% | 2749 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 54,650 psi | 84% | 2881 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 54,694 psi | 84% | 2897 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,456 psi | 42% | 1654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,687 psi | 70% | 2736 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,677 psi | 80% | 2920 fps | 100% |
| ReloadSwiss RS 60 | 51.7 gr | 80% | 41,858 psi | 64% | 2785 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,346 psi | 54% | 2605 fps | 96.9% |
| ReloadSwiss RS 70 | 52.5 gr | 80% | 34,461 psi | 53% | 2605 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 48,820 psi | 75% | 2753 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,569 psi | 65% | 2690 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 49,835 psi | 77% | 2831 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 92% | 43,685 psi | 67% | 2772 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 39,914 psi | 61% | 2612 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,769 psi | 60% | 2589 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,649 psi | 81% | 2835 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,166 psi | 73% | 2743 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,159 psi | 57% | 2569 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,540 psi | 67% | 2740 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,417 psi | 82% | 2861 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,908 psi | 78% | 2828 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,098 psi | 80% | 2736 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,947 psi | 68% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,971 psi | 58% | 2533 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,279 psi | 67% | 2766 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 51,837 psi | 80% | 2736 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,243 psi | 82% | 2848 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,844 psi | 66% | 2687 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 31,923 psi | 49% | 2539 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 41,568 psi | 64% | 2700 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 52,634 psi | 81% | 2723 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,965 psi | 75% | 2720 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,327 psi | 76% | 2736 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,002 psi | 63% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,898 psi | 57% | 2585 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 96% | 43,642 psi | 67% | 2730 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 55,114 psi | 85% | 2858 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 47,659 psi | 73% | 2730 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,463 psi | 56% | 2589 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 82% | 29,878 psi | 46% | 2484 fps | 95.8% |
| Vihtavuori N560 | <<locked>> | 98% | 51,126 psi | 79% | 2969 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,260 psi | 56% | 2559 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 37,811 psi | 58% | 2641 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,701 psi | 40% | 2425 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,923 psi | 78% | 2835 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 44,005 psi | 68% | 2740 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 Grand Slam. Alliant Reloder-26 delivers the highest muzzle velocity at 3,100 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,100 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 1:13.0 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 145gr | Speer Grand Slam 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.