Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 173gr | Sellier & Bellot SPCE bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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.
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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>> | 82% | 58,320 psi | 90% | 2595 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 55,288 psi | 85% | 2628 fps | 99.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 57,551 psi | 89% | 2730 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 58,566 psi | 90% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,869 psi | 86% | 2717 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 55,985 psi | 86% | 2822 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 86% | 58,305 psi | 90% | 2687 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,826 psi | 87% | 2769 fps | 99.3% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 58,146 psi | 89% | 2825 fps | 98.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,507 psi | 58% | 2510 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 58,305 psi | 90% | 2812 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,869 psi | 86% | 2661 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,898 psi | 86% | 2680 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,666 psi | 87% | 2769 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 58,131 psi | 89% | 2789 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,188 psi | 86% | 2759 fps | 99.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 57,334 psi | 88% | 2818 fps | 99.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,404 psi | 84% | 2743 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,963 psi | 72% | 2687 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 98% | 58,653 psi | 90% | 2884 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,547 psi | 81% | 2746 fps | 98.9% |
| Bofors RP3 | <<locked>> | 84% | 56,623 psi | 87% | 2677 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 42,844 psi | 66% | 2615 fps | 96.4% |
| Bofors RP5ᴾ | <<locked>> | 100% | 57,334 psi | 88% | 2818 fps | 99.5% |
| Bofors RP7 | <<locked>> | 88% | 55,854 psi | 86% | 2671 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,543 psi | 72% | 2631 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 84% | 57,014 psi | 88% | 2697 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 57,914 psi | 89% | 2772 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 88% | 57,464 psi | 88% | 2730 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 98% | 58,378 psi | 90% | 2769 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 57,087 psi | 88% | 2749 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 57,087 psi | 88% | 2694 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 58,479 psi | 90% | 2723 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,166 psi | 71% | 2733 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 90% | 58,436 psi | 90% | 2812 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,709 psi | 56% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 58,813 psi | 90% | 2687 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,624 psi | 89% | 2664 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,652 psi | 87% | 2657 fps | 99.8% |
| IMR 4350 | <<locked>> | 92% | 56,869 psi | 87% | 2703 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 57,290 psi | 88% | 2694 fps | 99.8% |
| IMR 4831 | <<locked>> | 92% | 56,434 psi | 87% | 2710 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 57,334 psi | 88% | 2703 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,086 psi | 86% | 2700 fps | 97.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,477 psi | 85% | 2799 fps | 98.4% |
| Lovex S062 | <<locked>> | 84% | 57,914 psi | 89% | 2657 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,725 psi | 89% | 2690 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 55,738 psi | 86% | 2687 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,935 psi | 74% | 2592 fps | 99.6% |
| Norma 203B | <<locked>> | 82% | 55,216 psi | 85% | 2667 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,914 psi | 89% | 2759 fps | 99.3% |
| Norma MRP | <<locked>> | 98% | 57,130 psi | 88% | 2844 fps | 99.9% |
| Norma URP | <<locked>> | 92% | 58,088 psi | 89% | 2753 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 56,115 psi | 86% | 2694 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,115 psi | 86% | 2818 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 92% | 56,956 psi | 88% | 2759 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,096 psi | 77% | 2697 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,478 psi | 58% | 1686 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,782 psi | 87% | 2684 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 57,740 psi | 89% | 2782 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,883 psi | 86% | 2746 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 58,131 psi | 89% | 2825 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,934 psi | 71% | 2726 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 56,579 psi | 87% | 2625 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,782 psi | 87% | 2671 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 58,421 psi | 90% | 2740 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 96% | 55,288 psi | 85% | 2743 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 88% | 55,854 psi | 86% | 2671 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,725 psi | 89% | 2690 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 57,914 psi | 89% | 2657 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,738 psi | 86% | 2687 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 58,320 psi | 90% | 2730 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 57,392 psi | 88% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 57,421 psi | 88% | 2651 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 58,639 psi | 90% | 2792 fps | 99.5% |
| Somchem S355 | <<locked>> | 86% | 56,739 psi | 87% | 2667 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,318 psi | 87% | 2680 fps | 97.7% |
| Somchem S365 | <<locked>> | 94% | 57,899 psi | 89% | 2753 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 56,043 psi | 86% | 2720 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 82% | 57,087 psi | 88% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 57,130 psi | 88% | 2595 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 58,015 psi | 89% | 2641 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,492 psi | 87% | 2697 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,201 psi | 85% | 2697 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 55,303 psi | 85% | 2595 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,695 psi | 86% | 2703 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,826 psi | 87% | 2766 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 57,246 psi | 88% | 2838 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,820 psi | 75% | 2694 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,115 psi | 86% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 58,262 psi | 90% | 2776 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,067 psi | 77% | 2815 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 56,188 psi | 86% | 2720 fps | 99.2% |
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% | 54,592 psi | 84% | 2549 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,909 psi | 80% | 2575 fps | 99.1% |
| Accurate 3100 | <<locked>> | 80% | 29,399 psi | 45% | 2218 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 51,793 psi | 80% | 2562 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,842 psi | 61% | 2461 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 45,223 psi | 70% | 2644 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 48,385 psi | 74% | 2543 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,377 psi | 59% | 2444 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 92% | 44,512 psi | 68% | 2598 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 96% | 33,040 psi | 51% | 2395 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 54,172 psi | 83% | 2756 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,371 psi | 76% | 2569 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,431 psi | 81% | 2631 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,609 psi | 59% | 2470 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,816 psi | 67% | 2582 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,247 psi | 59% | 2441 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,435 psi | 59% | 2490 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,456 psi | 44% | 2251 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,226 psi | 47% | 2313 fps | 95.9% |
| Alliant Reloder-26 | 50.8 gr | 80% | 30,472 psi | 47% | 2362 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 38,116 psi | 59% | 2480 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 49,647 psi | 76% | 2579 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,248 psi | 62% | 2562 fps | 95.5% |
| Bofors RP5 | <<locked>> | 88% | 38,435 psi | 59% | 2490 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 43,656 psi | 67% | 2470 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 40,683 psi | 63% | 2516 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 50,111 psi | 77% | 2595 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 41,829 psi | 64% | 2510 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 44,454 psi | 68% | 2520 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 44,657 psi | 69% | 2549 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,702 psi | 72% | 2585 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,245 psi | 56% | 2369 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 54,520 psi | 84% | 2671 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,000 psi | 58% | 2552 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 40,669 psi | 63% | 2523 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 42% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 55,187 psi | 85% | 2638 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,923 psi | 78% | 2572 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,229 psi | 82% | 2608 fps | 99.6% |
| IMR 4350 | <<locked>> | 80% | 39,247 psi | 60% | 2405 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,034 psi | 69% | 2497 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 38,203 psi | 59% | 2415 fps | 99.3% |
| IMR 4895 | <<locked>> | 80% | 53,795 psi | 83% | 2657 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 43,729 psi | 67% | 2497 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 92% | 42,670 psi | 66% | 2572 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 51,227 psi | 79% | 2566 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,525 psi | 65% | 2451 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 40,727 psi | 63% | 2434 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 30,777 psi | 47% | 2254 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 51,793 psi | 80% | 2618 fps | 100% |
| Norma 204 | <<locked>> | 80% | 38,740 psi | 60% | 2434 fps | 95.4% |
| Norma MRP | 50.5 gr | 82% | 32,808 psi | 50% | 2385 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 39,494 psi | 61% | 2454 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 80% | 52,359 psi | 81% | 2644 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 42,250 psi | 65% | 2579 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 38,348 psi | 59% | 2448 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 35,041 psi | 54% | 2408 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 43% | 1506 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,777 psi | 77% | 2582 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,543 psi | 72% | 2625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,653 psi | 61% | 2480 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,218 psi | 59% | 2490 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,766 psi | 53% | 2470 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 53,084 psi | 82% | 2575 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,862 psi | 72% | 2533 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,641 psi | 66% | 2480 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 37,347 psi | 57% | 2425 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 43,656 psi | 67% | 2470 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,525 psi | 65% | 2451 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 51,227 psi | 79% | 2566 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,727 psi | 63% | 2434 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,109 psi | 74% | 2585 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,921 psi | 74% | 2431 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,524 psi | 64% | 2398 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 36,999 psi | 57% | 2421 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 47,036 psi | 72% | 2530 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,195 psi | 71% | 2523 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 36,114 psi | 56% | 2415 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,505 psi | 55% | 2359 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 53,722 psi | 83% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,621 psi | 82% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,918 psi | 69% | 2461 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,843 psi | 63% | 2451 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 35,041 psi | 54% | 2343 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 51,953 psi | 80% | 2552 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,437 psi | 62% | 2457 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 31,618 psi | 49% | 2320 fps | 98.3% |
| Vihtavuori N560 | 55.4 gr | 90% | 43,439 psi | 67% | 2605 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 96% | 42,714 psi | 66% | 2582 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,827 psi | 61% | 2421 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,829 psi | 64% | 2510 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,193 psi | 39% | 2241 fps | 97.8% |
| Winchester Supreme 780 | <<locked>> | 86% | 37,101 psi | 57% | 2392 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 93 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 173gr | Sellier & Bellot SPCE. Alliant Reloder-26 delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,884 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 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 173.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, ADI AR 2225 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 173gr | Sellier & Bellot SPCE 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.