
Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 145gr | Prvi Partizan SP bullet and 106 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% | 56,391 psi | 87% | 2828 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 58,030 psi | 89% | 2897 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,387 psi | 79% | 2877 fps | 99.1% |
| Accurate 4064 | <<locked>> | 86% | 56,666 psi | 87% | 2881 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,464 psi | 88% | 2989 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,753 psi | 86% | 2907 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,884 psi | 88% | 2913 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 58,378 psi | 90% | 3028 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,957 psi | 89% | 2904 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,159 psi | 86% | 3038 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,624 psi | 89% | 2936 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 58,044 psi | 89% | 2963 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 58,059 psi | 89% | 3045 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,579 psi | 86% | 3015 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,624 psi | 89% | 3018 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,937 psi | 78% | 2956 fps | 97.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,080 psi | 74% | 2894 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,018 psi | 65% | 2808 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,332 psi | 85% | 3094 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,579 psi | 86% | 2927 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,804 psi | 72% | 2874 fps | 96.1% |
| Bofors RP3 | <<locked>> | 88% | 58,697 psi | 90% | 2956 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,937 psi | 78% | 2956 fps | 97.2% |
| Bofors RP7 | <<locked>> | 92% | 57,943 psi | 89% | 2936 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 58,102 psi | 89% | 2936 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 55,347 psi | 85% | 2917 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 55,854 psi | 86% | 2986 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 90% | 55,811 psi | 86% | 2943 fps | 98.1% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 56,130 psi | 86% | 2963 fps | 96% |
| Hodgdon H4895 | <<locked>> | 82% | 56,362 psi | 87% | 2917 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 58,436 psi | 90% | 2966 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,507 psi | 87% | 2956 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,202 psi | 86% | 3025 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,216 psi | 56% | 1804 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,537 psi | 89% | 2920 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,029 psi | 88% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,376 psi | 87% | 2897 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,579 psi | 86% | 2877 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 55,332 psi | 85% | 2917 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,231 psi | 87% | 2913 fps | 99% |
| IMR 4831 | <<locked>> | 96% | 57,624 psi | 89% | 2976 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,767 psi | 86% | 2936 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 57,754 psi | 89% | 2953 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 82% | 57,957 psi | 89% | 2904 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 56,043 psi | 86% | 2881 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 58,001 psi | 89% | 2881 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,492 psi | 87% | 2890 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,014 psi | 86% | 2907 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 57,508 psi | 88% | 2953 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,525 psi | 65% | 2720 fps | 97.6% |
| Norma 201 | <<locked>> | 84% | 57,943 psi | 89% | 2900 fps | 100% |
| Norma 202 | <<locked>> | 84% | 58,769 psi | 90% | 2897 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,319 psi | 88% | 2949 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,144 psi | 86% | 2969 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 54,041 psi | 83% | 3038 fps | 98.9% |
| Norma URP | <<locked>> | 94% | 56,130 psi | 86% | 2972 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 58,117 psi | 89% | 2972 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 58,363 psi | 90% | 3025 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,570 psi | 69% | 2812 fps | 96.2% |
| Ramshot TAC | <<locked>> | 82% | 58,320 psi | 90% | 2936 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 58,450 psi | 90% | 2949 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,840 psi | 57% | 1847 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,419 psi | 85% | 2900 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,129 psi | 85% | 2972 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,114 psi | 85% | 3009 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,101 psi | 88% | 3009 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,970 psi | 86% | 3041 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 58,798 psi | 90% | 2877 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 58,769 psi | 90% | 2904 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 58,581 psi | 90% | 2946 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,565 psi | 87% | 2943 fps | 96.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,739 psi | 87% | 2999 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 92% | 57,943 psi | 89% | 2936 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,014 psi | 86% | 2907 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,043 psi | 86% | 2881 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,492 psi | 87% | 2890 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,508 psi | 88% | 2953 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,724 psi | 87% | 2959 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,145 psi | 88% | 2917 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,725 psi | 89% | 2933 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 58,813 psi | 90% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,376 psi | 87% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,014 psi | 86% | 2861 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,246 psi | 87% | 2995 fps | 98.1% |
| Somchem S335 | <<locked>> | 84% | 58,436 psi | 90% | 2828 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,608 psi | 87% | 2900 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 58,450 psi | 90% | 2943 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 58,668 psi | 90% | 2936 fps | 96.4% |
| Somchem S365 | <<locked>> | 96% | 55,027 psi | 85% | 2976 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,363 psi | 88% | 2976 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 82% | 56,014 psi | 86% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,332 psi | 85% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,840 psi | 86% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,275 psi | 87% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 58,363 psi | 90% | 2966 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,661 psi | 76% | 2838 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 82% | 58,697 psi | 90% | 2907 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 57,450 psi | 88% | 2874 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,203 psi | 88% | 2969 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,012 psi | 83% | 2976 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,476 psi | 84% | 3028 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 58,218 psi | 90% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,159 psi | 86% | 2989 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,482 psi | 67% | 2946 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 57,899 psi | 89% | 2940 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,041 psi | 83% | 2913 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% | 49,545 psi | 76% | 2730 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,572 psi | 73% | 2726 fps | 97% |
| Accurate 3100 | <<locked>> | 90% | 36,419 psi | 56% | 2592 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 46,934 psi | 72% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,520 psi | 55% | 2589 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 52,460 psi | 81% | 2858 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,425 psi | 68% | 2703 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 44,918 psi | 69% | 2792 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,505 psi | 84% | 2854 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,820 psi | 75% | 2920 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,918 psi | 69% | 2733 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,964 psi | 74% | 2799 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,867 psi | 54% | 2595 fps | 97.3% |
| Alliant Reloder-17 | 51.6 gr | 80% | 39,320 psi | 60% | 2723 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,643 psi | 69% | 2789 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,802 psi | 69% | 2838 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,137 psi | 42% | 2398 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,882 psi | 54% | 2631 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 86% | 33,185 psi | 51% | 2635 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,083 psi | 80% | 2871 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 43,903 psi | 68% | 2818 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 45,034 psi | 69% | 2743 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,802 psi | 69% | 2838 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 39,914 psi | 61% | 2608 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 54,375 psi | 84% | 2884 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,368 psi | 70% | 2746 fps | 99% |
| Hodgdon H414 | <<locked>> | 80% | 37,579 psi | 58% | 2635 fps | 95% |
| Hodgdon H4350 | <<locked>> | 82% | 43,337 psi | 67% | 2717 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 52,591 psi | 81% | 2904 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 53,011 psi | 82% | 2867 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,387 psi | 50% | 2493 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,588 psi | 76% | 2848 fps | 100% |
| Hodgdon Superformance | 55.9 gr | 82% | 39,204 psi | 60% | 2700 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,122 psi | 42% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,604 psi | 78% | 2815 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,417 psi | 82% | 2844 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,731 psi | 72% | 2740 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,182 psi | 76% | 2769 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 40,466 psi | 62% | 2641 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,278 psi | 64% | 2638 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 34,272 psi | 53% | 2543 fps | 96.9% |
| IMR 4895 | <<locked>> | 80% | 49,197 psi | 76% | 2828 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,068 psi | 79% | 2841 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 54,505 psi | 84% | 2854 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,634 psi | 81% | 2831 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,387 psi | 79% | 2782 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,891 psi | 72% | 2736 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,769 psi | 60% | 2589 fps | 96.9% |
| Lovex S070 | <<locked>> | 80% | 36,927 psi | 57% | 2566 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 35,027 psi | 54% | 2559 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 51,198 psi | 79% | 2802 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,880 psi | 80% | 2802 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,340 psi | 73% | 2789 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,832 psi | 71% | 2789 fps | 95.5% |
| Norma MRP | <<locked>> | 90% | 38,305 psi | 59% | 2726 fps | 95% |
| Norma URP | <<locked>> | 80% | 35,331 psi | 54% | 2579 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 47,485 psi | 73% | 2808 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,651 psi | 56% | 2621 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 41,437 psi | 64% | 2746 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 54,418 psi | 84% | 2877 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 54,418 psi | 84% | 2894 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,543 psi | 42% | 1654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,672 psi | 70% | 2733 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,692 psi | 80% | 2917 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,829 psi | 64% | 2785 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,128 psi | 54% | 2602 fps | 96.8% |
| ReloadSwiss RS 70 | 52.4 gr | 80% | 34,432 psi | 53% | 2602 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 55,317 psi | 85% | 2828 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 48,791 psi | 75% | 2753 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,293 psi | 65% | 2684 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 49,835 psi | 77% | 2831 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 92% | 43,453 psi | 67% | 2766 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 39,914 psi | 61% | 2608 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,769 psi | 60% | 2589 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,634 psi | 81% | 2831 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,891 psi | 72% | 2736 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,927 psi | 57% | 2566 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,482 psi | 67% | 2740 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,447 psi | 82% | 2861 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,879 psi | 78% | 2828 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,083 psi | 80% | 2736 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,903 psi | 68% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,985 psi | 58% | 2533 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,033 psi | 66% | 2762 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 51,837 psi | 80% | 2733 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,953 psi | 81% | 2844 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,786 psi | 66% | 2687 fps | 99.8% |
| Somchem S361 | <<locked>> | 96% | 54,853 psi | 84% | 2877 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 31,894 psi | 49% | 2536 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 41,379 psi | 64% | 2694 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 52,591 psi | 81% | 2720 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,907 psi | 75% | 2720 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,052 psi | 75% | 2730 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,756 psi | 63% | 2615 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,869 psi | 57% | 2585 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 96% | 43,410 psi | 67% | 2723 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 54,810 psi | 84% | 2851 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 47,355 psi | 73% | 2723 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,230 psi | 56% | 2582 fps | 97.1% |
| Vihtavuori N555 | <<locked>> | 82% | 29,675 psi | 46% | 2477 fps | 95.7% |
| Vihtavuori N560 | <<locked>> | 98% | 51,169 psi | 79% | 2966 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,027 psi | 55% | 2552 fps | 99.1% |
| Winchester 760 | <<locked>> | 80% | 37,579 psi | 58% | 2635 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 86% | 27,282 psi | 42% | 2487 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,676 psi | 78% | 2831 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,801 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 106 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 145gr | Prvi Partizan SP. Alliant Reloder-26 delivers the highest muzzle velocity at 3,094 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,094 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 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 145.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 | Prvi Partizan SP they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.