Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 175gr | Speer TBBC bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and Norma MRP.
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>> | 82% | 57,072 psi | 88% | 2559 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 58,146 psi | 89% | 2641 fps | 99.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,376 psi | 87% | 2690 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 57,450 psi | 88% | 2612 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 58,639 psi | 90% | 2730 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 58,595 psi | 90% | 2835 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 86% | 57,348 psi | 88% | 2648 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,622 psi | 86% | 2726 fps | 99.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,826 psi | 87% | 2779 fps | 98.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 36,608 psi | 56% | 2467 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,927 psi | 88% | 2769 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 58,175 psi | 89% | 2667 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 58,537 psi | 90% | 2690 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,463 psi | 85% | 2730 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,971 psi | 88% | 2753 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 58,465 psi | 90% | 2766 fps | 99.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,927 psi | 86% | 2776 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,823 psi | 81% | 2700 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,006 psi | 71% | 2648 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,782 psi | 87% | 2838 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,140 psi | 79% | 2703 fps | 98.6% |
| Bofors RP3 | <<locked>> | 84% | 55,608 psi | 86% | 2638 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 41,858 psi | 64% | 2575 fps | 96% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,927 psi | 86% | 2776 fps | 99.3% |
| Bofors RP7 | <<locked>> | 90% | 58,436 psi | 90% | 2680 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,455 psi | 70% | 2585 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 84% | 55,811 psi | 86% | 2657 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,869 psi | 87% | 2733 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 88% | 56,362 psi | 87% | 2690 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 98% | 56,985 psi | 88% | 2723 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,709 psi | 86% | 2707 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,970 psi | 86% | 2657 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,159 psi | 88% | 2684 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,049 psi | 69% | 2687 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 90% | 56,971 psi | 88% | 2769 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,550 psi | 56% | 1624 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,783 psi | 89% | 2648 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,898 psi | 88% | 2631 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,767 psi | 86% | 2618 fps | 99.8% |
| IMR 4350 | <<locked>> | 92% | 55,912 psi | 86% | 2667 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,536 psi | 87% | 2657 fps | 99.8% |
| IMR 4831 | <<locked>> | 92% | 55,027 psi | 85% | 2671 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,260 psi | 87% | 2667 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 58,392 psi | 90% | 2707 fps | 98.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,186 psi | 83% | 2753 fps | 98.1% |
| Lovex S060 | <<locked>> | 82% | 58,276 psi | 90% | 2612 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 57,145 psi | 88% | 2621 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,637 psi | 87% | 2651 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 58,030 psi | 89% | 2694 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,978 psi | 72% | 2556 fps | 99.5% |
| Norma 201 | <<locked>> | 82% | 58,276 psi | 90% | 2628 fps | 100% |
| Norma 203B | <<locked>> | 84% | 57,812 psi | 89% | 2677 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,724 psi | 87% | 2720 fps | 99.1% |
| Norma MRP | <<locked>> | 98% | 55,651 psi | 86% | 2799 fps | 99.9% |
| Norma URP | <<locked>> | 92% | 56,956 psi | 88% | 2713 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 58,653 psi | 90% | 2703 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,795 psi | 84% | 2772 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 92% | 55,695 psi | 86% | 2720 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,994 psi | 75% | 2657 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,333 psi | 57% | 1663 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,651 psi | 86% | 2644 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,463 psi | 87% | 2743 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 58,392 psi | 90% | 2753 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,623 psi | 87% | 2782 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,744 psi | 69% | 2680 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 82% | 55,724 psi | 86% | 2589 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,811 psi | 86% | 2635 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,203 psi | 88% | 2697 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 98% | 57,914 psi | 89% | 2756 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 90% | 58,436 psi | 90% | 2680 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,637 psi | 87% | 2651 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 57,145 psi | 88% | 2621 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 58,030 psi | 89% | 2694 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,130 psi | 88% | 2690 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 58,204 psi | 90% | 2664 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,652 psi | 87% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,101 psi | 86% | 2608 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 57,421 psi | 88% | 2749 fps | 99.4% |
| Somchem S335 | <<locked>> | 82% | 58,595 psi | 90% | 2556 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 55,738 psi | 86% | 2631 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,143 psi | 85% | 2641 fps | 97.5% |
| Somchem S365 | <<locked>> | 94% | 56,449 psi | 87% | 2713 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 58,392 psi | 90% | 2730 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 82% | 56,115 psi | 86% | 2543 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,057 psi | 86% | 2559 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,782 psi | 87% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,376 psi | 85% | 2657 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,172 psi | 83% | 2657 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 84% | 57,682 psi | 89% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 58,059 psi | 89% | 2710 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,492 psi | 85% | 2723 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,898 psi | 86% | 2795 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 47,587 psi | 73% | 2651 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 58,813 psi | 90% | 2674 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,869 psi | 87% | 2733 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,124 psi | 74% | 2769 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 58,407 psi | 90% | 2671 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,824 psi | 84% | 2674 fps | 98.9% |
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% | 53,635 psi | 83% | 2516 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,024 psi | 78% | 2539 fps | 99% |
| Accurate 3100 | <<locked>> | 82% | 30,690 psi | 47% | 2234 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 50,879 psi | 78% | 2526 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,044 psi | 60% | 2425 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 94% | 47,340 psi | 73% | 2661 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 47,863 psi | 74% | 2510 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 37,608 psi | 58% | 2405 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 92% | 43,700 psi | 67% | 2559 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 98% | 34,316 psi | 53% | 2408 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,142 psi | 82% | 2717 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,573 psi | 75% | 2533 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,634 psi | 79% | 2595 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,855 psi | 58% | 2434 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,859 psi | 66% | 2546 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 37,478 psi | 58% | 2405 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 88% | 37,536 psi | 58% | 2451 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,862 psi | 43% | 2215 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,617 psi | 46% | 2277 fps | 95.6% |
| Alliant Reloder-26 | 49.3 gr | 80% | 29,646 psi | 46% | 2320 fps | 96.6% |
| Bofors RP15 | <<locked>> | 90% | 37,260 psi | 57% | 2444 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 48,849 psi | 75% | 2543 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 39,131 psi | 60% | 2516 fps | 95.1% |
| Bofors RP5 | <<locked>> | 88% | 37,536 psi | 58% | 2451 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 42,960 psi | 66% | 2434 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 39,856 psi | 61% | 2477 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 49,081 psi | 76% | 2556 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 40,901 psi | 63% | 2467 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 43,801 psi | 67% | 2484 fps | 97.4% |
| Hodgdon H4831 | <<locked>> | 92% | 46,630 psi | 72% | 2562 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 45,847 psi | 71% | 2549 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,476 psi | 55% | 2333 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,476 psi | 82% | 2635 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,101 psi | 57% | 2510 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 39,784 psi | 61% | 2484 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 42% | 1450 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 54,099 psi | 83% | 2598 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,372 psi | 77% | 2539 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,286 psi | 80% | 2569 fps | 99.5% |
| IMR 4350 | <<locked>> | 80% | 38,363 psi | 59% | 2365 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,092 psi | 68% | 2457 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 37,463 psi | 58% | 2382 fps | 99.2% |
| IMR 4895 | <<locked>> | 80% | 52,953 psi | 81% | 2618 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 45,730 psi | 70% | 2510 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 41,626 psi | 64% | 2530 fps | 95% |
| Lovex S060 | <<locked>> | 80% | 54,926 psi | 85% | 2569 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 50,676 psi | 78% | 2536 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,814 psi | 64% | 2415 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 40,030 psi | 62% | 2402 fps | 97.8% |
| Lovex S071 | <<locked>> | 86% | 30,124 psi | 46% | 2221 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 54,868 psi | 84% | 2585 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,966 psi | 78% | 2582 fps | 100% |
| Norma 204 | <<locked>> | 80% | 37,913 psi | 58% | 2395 fps | 95.1% |
| Norma MRP | 50.3 gr | 84% | 34,403 psi | 53% | 2408 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 38,725 psi | 60% | 2418 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 80% | 51,416 psi | 79% | 2608 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 41,234 psi | 63% | 2536 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 37,507 psi | 58% | 2411 fps | 97.8% |
| Ramshot Magnum | <<locked>> | 92% | 36,622 psi | 56% | 2425 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,021 psi | 43% | 1486 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,921 psi | 75% | 2543 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,527 psi | 70% | 2589 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,769 psi | 60% | 2444 fps | 99.2% |
| ReloadSwiss RS 70 | 48.9 gr | 80% | 37,492 psi | 58% | 2454 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,026 psi | 52% | 2431 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 52,475 psi | 81% | 2543 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,035 psi | 71% | 2497 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 41,655 psi | 64% | 2441 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 84% | 36,492 psi | 56% | 2388 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,960 psi | 66% | 2434 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,814 psi | 64% | 2415 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 50,676 psi | 78% | 2536 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,030 psi | 62% | 2402 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,137 psi | 73% | 2549 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 54,592 psi | 84% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,050 psi | 72% | 2395 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,886 psi | 63% | 2365 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 38,754 psi | 60% | 2438 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 55,303 psi | 85% | 2513 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 46,224 psi | 71% | 2493 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 45,440 psi | 70% | 2487 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 35,114 psi | 54% | 2379 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 34,940 psi | 54% | 2326 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 52,736 psi | 81% | 2500 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,765 psi | 81% | 2516 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,135 psi | 68% | 2425 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,103 psi | 62% | 2415 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 36,579 psi | 56% | 2356 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 50,995 psi | 78% | 2516 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,552 psi | 61% | 2418 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 30,879 psi | 48% | 2283 fps | 98.1% |
| Vihtavuori N560 | <<locked>> | 92% | 45,585 psi | 70% | 2621 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 96% | 41,698 psi | 64% | 2543 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,117 psi | 60% | 2385 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 40,901 psi | 63% | 2467 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,613 psi | 38% | 2201 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 54,723 psi | 84% | 2621 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,841 psi | 60% | 2408 fps | 95.6% |
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 103 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 175gr | Speer TBBC. Alliant Reloder-26 delivers the highest muzzle velocity at 2,838 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,838 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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, ReloadSwiss RS 70, Norma MRP rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 175gr | Speer TBBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Norma 217, ReloadSwiss RS 80 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.