Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 140gr | Remington PSP bullet and 103 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% | 56,550 psi | 87% | 2884 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 58,102 psi | 89% | 2956 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,619 psi | 79% | 2930 fps | 99% |
| Accurate 4064 | <<locked>> | 86% | 56,768 psi | 87% | 2936 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,711 psi | 89% | 3048 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,927 psi | 86% | 2969 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,927 psi | 88% | 2972 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 58,566 psi | 90% | 3087 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 58,117 psi | 89% | 2966 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,318 psi | 87% | 3100 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,885 psi | 89% | 2995 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 58,073 psi | 89% | 3018 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 58,305 psi | 90% | 3104 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,796 psi | 86% | 3074 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,856 psi | 89% | 3074 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,387 psi | 79% | 3015 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,341 psi | 74% | 2953 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,163 psi | 65% | 2858 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,564 psi | 85% | 3150 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,767 psi | 86% | 2982 fps | 100% |
| Bofors RP3 | <<locked>> | 86% | 55,085 psi | 85% | 2959 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,387 psi | 79% | 3015 fps | 97.1% |
| Bofors RP7 | <<locked>> | 92% | 57,986 psi | 89% | 2992 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 82% | 58,334 psi | 90% | 2999 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 55,564 psi | 85% | 2976 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 56,043 psi | 86% | 3041 fps | 99% |
| Hodgdon H4350 | <<locked>> | 90% | 56,101 psi | 86% | 3002 fps | 98% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 56,579 psi | 87% | 3022 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 82% | 56,565 psi | 87% | 2976 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 58,595 psi | 90% | 3022 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,739 psi | 87% | 3012 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,391 psi | 87% | 3081 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,187 psi | 56% | 1847 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,624 psi | 89% | 2979 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,014 psi | 88% | 2953 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,492 psi | 87% | 2953 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,883 psi | 86% | 2936 fps | 98.9% |
| IMR 4350 | <<locked>> | 94% | 55,274 psi | 85% | 2969 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,362 psi | 87% | 2969 fps | 98.9% |
| IMR 4831 | <<locked>> | 96% | 57,754 psi | 89% | 3035 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,840 psi | 86% | 2992 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 57,986 psi | 89% | 3009 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 82% | 58,117 psi | 89% | 2966 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 56,420 psi | 87% | 2943 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 58,160 psi | 89% | 2940 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,579 psi | 87% | 2946 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,086 psi | 86% | 2963 fps | 99.6% |
| Lovex S070 | <<locked>> | 94% | 57,464 psi | 88% | 3005 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,685 psi | 66% | 2769 fps | 97.4% |
| Norma 201 | <<locked>> | 84% | 58,146 psi | 89% | 2959 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,187 psi | 85% | 2904 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,319 psi | 88% | 3005 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,188 psi | 86% | 3025 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 54,404 psi | 84% | 3100 fps | 98.9% |
| Norma URP | <<locked>> | 94% | 56,072 psi | 86% | 3028 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 58,407 psi | 90% | 3031 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 58,668 psi | 90% | 3084 fps | 99.7% |
| Ramshot TAC | <<locked>> | 82% | 58,189 psi | 90% | 2989 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 58,305 psi | 90% | 3005 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,796 psi | 57% | 1890 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,506 psi | 85% | 2956 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,477 psi | 85% | 3035 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,390 psi | 85% | 3068 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,377 psi | 88% | 3068 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 56,188 psi | 86% | 3100 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 55,187 psi | 85% | 2910 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 58,726 psi | 90% | 3005 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,623 psi | 87% | 2995 fps | 96.7% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 57,000 psi | 88% | 3058 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 92% | 57,986 psi | 89% | 2992 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,086 psi | 86% | 2963 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,420 psi | 87% | 2943 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,579 psi | 87% | 2946 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,464 psi | 88% | 3005 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,768 psi | 87% | 3015 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,319 psi | 88% | 2976 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,986 psi | 89% | 2992 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,608 psi | 86% | 2841 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,492 psi | 87% | 2844 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,970 psi | 86% | 2913 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,492 psi | 87% | 3054 fps | 98% |
| Somchem S335 | <<locked>> | 84% | 58,624 psi | 90% | 2884 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,768 psi | 87% | 2956 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 58,595 psi | 90% | 3002 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 58,639 psi | 90% | 2989 fps | 96.3% |
| Somchem S365 | <<locked>> | 96% | 55,201 psi | 85% | 3031 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,812 psi | 89% | 3035 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 82% | 56,086 psi | 86% | 2825 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,637 psi | 86% | 2871 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,956 psi | 86% | 2887 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,420 psi | 87% | 2923 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 58,581 psi | 90% | 3025 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,864 psi | 77% | 2890 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 82% | 58,508 psi | 90% | 2959 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 57,609 psi | 89% | 2930 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,609 psi | 89% | 3031 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,070 psi | 83% | 3031 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,824 psi | 84% | 3087 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 58,363 psi | 90% | 2992 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,347 psi | 87% | 3045 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,569 psi | 67% | 2999 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 58,073 psi | 89% | 2999 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,128 psi | 83% | 2966 fps | 97.3% |
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% | 49,661 psi | 76% | 2785 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,645 psi | 73% | 2779 fps | 96.8% |
| Accurate 3100 | <<locked>> | 90% | 36,506 psi | 56% | 2638 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 46,992 psi | 72% | 2789 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,534 psi | 55% | 2635 fps | 97% |
| ADI AR 2206H | <<locked>> | 80% | 52,417 psi | 81% | 2913 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,512 psi | 68% | 2759 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 92% | 45,165 psi | 69% | 2848 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,491 psi | 84% | 2910 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,849 psi | 75% | 2972 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,933 psi | 69% | 2785 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,950 psi | 74% | 2854 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,925 psi | 54% | 2644 fps | 97.1% |
| Alliant Reloder-17 | 53.1 gr | 80% | 39,436 psi | 61% | 2779 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,628 psi | 69% | 2838 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,846 psi | 69% | 2887 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,253 psi | 42% | 2444 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,853 psi | 54% | 2674 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 86% | 33,388 psi | 51% | 2684 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,301 psi | 80% | 2927 fps | 99.9% |
| Bofors RP3 | <<locked>> | 80% | 45,223 psi | 70% | 2795 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,846 psi | 69% | 2887 fps | 95.4% |
| Bofors RP7 | <<locked>> | 82% | 42,438 psi | 65% | 2713 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 54,433 psi | 84% | 2943 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,542 psi | 70% | 2802 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 40,103 psi | 62% | 2740 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 82% | 43,207 psi | 66% | 2762 fps | 95.1% |
| Hodgdon H4831 | <<locked>> | 98% | 52,808 psi | 81% | 2959 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 52,982 psi | 82% | 2920 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,474 psi | 50% | 2539 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,690 psi | 76% | 2904 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 42,177 psi | 65% | 2815 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 42% | 1654 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,589 psi | 78% | 2871 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,534 psi | 82% | 2904 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,789 psi | 72% | 2792 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,124 psi | 76% | 2822 fps | 97.8% |
| IMR 4350 | <<locked>> | 84% | 40,538 psi | 62% | 2694 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,278 psi | 64% | 2690 fps | 95.8% |
| IMR 4831 | <<locked>> | 80% | 34,316 psi | 53% | 2589 fps | 96.7% |
| IMR 4895 | <<locked>> | 80% | 49,168 psi | 76% | 2884 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 54,621 psi | 84% | 2953 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 54,491 psi | 84% | 2910 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,779 psi | 81% | 2890 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,401 psi | 79% | 2838 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,963 psi | 72% | 2792 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,798 psi | 60% | 2638 fps | 96.6% |
| Lovex S070 | <<locked>> | 82% | 39,465 psi | 61% | 2671 fps | 95.6% |
| Lovex S071 | <<locked>> | 94% | 35,157 psi | 54% | 2605 fps | 95% |
| Norma 201 | <<locked>> | 80% | 51,300 psi | 79% | 2858 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,938 psi | 80% | 2858 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,355 psi | 73% | 2841 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,861 psi | 71% | 2841 fps | 95.2% |
| Norma MRP | <<locked>> | 92% | 41,147 psi | 63% | 2838 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 35,563 psi | 55% | 2631 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 80% | 47,514 psi | 73% | 2861 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,854 psi | 57% | 2674 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 54,636 psi | 84% | 2933 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 54,723 psi | 84% | 2953 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,557 psi | 42% | 1693 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,774 psi | 70% | 2789 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,793 psi | 80% | 2976 fps | 100% |
| ReloadSwiss RS 60 | 53.1 gr | 80% | 41,901 psi | 64% | 2838 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,186 psi | 54% | 2648 fps | 96.6% |
| ReloadSwiss RS 70 | 53.9 gr | 80% | 34,476 psi | 53% | 2651 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 48,878 psi | 75% | 2808 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,569 psi | 65% | 2740 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 49,821 psi | 77% | 2881 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 92% | 43,714 psi | 67% | 2822 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 82% | 42,438 psi | 65% | 2713 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,798 psi | 60% | 2638 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,779 psi | 81% | 2890 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,963 psi | 72% | 2792 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 39,465 psi | 61% | 2671 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,627 psi | 67% | 2792 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,417 psi | 82% | 2913 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,024 psi | 78% | 2884 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,257 psi | 80% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,077 psi | 68% | 2657 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,956 psi | 58% | 2579 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 46,166 psi | 71% | 2871 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 51,880 psi | 80% | 2789 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,229 psi | 82% | 2904 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,873 psi | 66% | 2740 fps | 99.7% |
| Somchem S361 | <<locked>> | 96% | 54,969 psi | 85% | 2933 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 31,923 psi | 49% | 2582 fps | 98.8% |
| Somchem S385 | <<locked>> | 90% | 41,640 psi | 64% | 2746 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 52,779 psi | 81% | 2779 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,052 psi | 75% | 2776 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,342 psi | 76% | 2789 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,988 psi | 63% | 2671 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 36,854 psi | 57% | 2631 fps | 97.3% |
| Vihtavuori N165 | <<locked>> | 96% | 43,526 psi | 67% | 2772 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 55,027 psi | 85% | 2910 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 47,529 psi | 73% | 2779 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,361 psi | 56% | 2631 fps | 96.9% |
| Vihtavuori N555 | <<locked>> | 82% | 29,834 psi | 46% | 2523 fps | 95.4% |
| Vihtavuori N560 | <<locked>> | 98% | 51,271 psi | 79% | 3022 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,245 psi | 56% | 2605 fps | 99% |
| Winchester 760 | <<locked>> | 82% | 40,335 psi | 62% | 2746 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 86% | 27,369 psi | 42% | 2526 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,981 psi | 78% | 2890 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 47,036 psi | 72% | 2844 fps | 95.8% |
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 116 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 140gr | Remington PSP. Alliant Reloder-26 delivers the highest muzzle velocity at 3,150 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,150 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:15.0 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 | 140gr | Remington PSP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, 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.