Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 175gr | Barnes Solid RN 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, 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.
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% | 57,232 psi | 88% | 2559 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 58,218 psi | 90% | 2641 fps | 99.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,521 psi | 87% | 2694 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 57,595 psi | 89% | 2615 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 58,784 psi | 90% | 2733 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 58,682 psi | 90% | 2838 fps | 98% |
| ADI AR 2208 | <<locked>> | 86% | 57,493 psi | 88% | 2651 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,724 psi | 86% | 2730 fps | 99.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,927 psi | 88% | 2782 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 36,666 psi | 56% | 2467 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,087 psi | 88% | 2769 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 58,349 psi | 90% | 2671 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 58,682 psi | 90% | 2694 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,608 psi | 86% | 2733 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,116 psi | 88% | 2756 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 58,566 psi | 90% | 2769 fps | 99.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,028 psi | 86% | 2779 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,953 psi | 81% | 2703 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,093 psi | 71% | 2651 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 57,246 psi | 88% | 2844 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,517 psi | 79% | 2710 fps | 98.7% |
| Bofors RP3 | <<locked>> | 84% | 55,767 psi | 86% | 2641 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 42,003 psi | 65% | 2575 fps | 96.1% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,028 psi | 86% | 2779 fps | 99.3% |
| Bofors RP7 | <<locked>> | 90% | 58,566 psi | 90% | 2684 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,585 psi | 70% | 2592 fps | 97% |
| Hodgdon H380 | <<locked>> | 84% | 55,927 psi | 86% | 2657 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,985 psi | 88% | 2733 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 88% | 56,492 psi | 87% | 2694 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 98% | 57,087 psi | 88% | 2726 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,811 psi | 86% | 2707 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,043 psi | 86% | 2661 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,261 psi | 88% | 2687 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,136 psi | 69% | 2690 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 90% | 57,377 psi | 88% | 2776 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,709 psi | 56% | 1627 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,885 psi | 89% | 2651 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,029 psi | 88% | 2635 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,912 psi | 86% | 2621 fps | 99.8% |
| IMR 4350 | <<locked>> | 92% | 56,028 psi | 86% | 2667 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,666 psi | 87% | 2661 fps | 99.8% |
| IMR 4831 | <<locked>> | 92% | 55,158 psi | 85% | 2674 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,420 psi | 87% | 2667 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 58,494 psi | 90% | 2710 fps | 98.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,273 psi | 83% | 2756 fps | 98.2% |
| Lovex S060 | <<locked>> | 82% | 58,088 psi | 89% | 2612 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 57,305 psi | 88% | 2625 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,768 psi | 87% | 2654 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 58,160 psi | 89% | 2697 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,094 psi | 72% | 2559 fps | 99.5% |
| Norma 201 | <<locked>> | 82% | 58,421 psi | 90% | 2631 fps | 100% |
| Norma 203B | <<locked>> | 84% | 57,972 psi | 89% | 2680 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,840 psi | 87% | 2720 fps | 99.1% |
| Norma MRP | <<locked>> | 98% | 55,796 psi | 86% | 2802 fps | 99.9% |
| Norma URP | <<locked>> | 92% | 57,087 psi | 88% | 2717 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 58,798 psi | 90% | 2707 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,955 psi | 85% | 2776 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 92% | 55,811 psi | 86% | 2723 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,066 psi | 75% | 2657 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,260 psi | 57% | 1663 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,782 psi | 86% | 2644 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,246 psi | 87% | 2740 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 58,523 psi | 90% | 2756 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,739 psi | 87% | 2782 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,875 psi | 69% | 2684 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 82% | 55,579 psi | 86% | 2585 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,898 psi | 86% | 2638 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,319 psi | 88% | 2700 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 98% | 58,030 psi | 89% | 2756 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 90% | 58,566 psi | 90% | 2684 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,768 psi | 87% | 2654 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 57,305 psi | 88% | 2625 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 58,160 psi | 89% | 2697 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,261 psi | 88% | 2694 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 58,349 psi | 90% | 2664 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,478 psi | 87% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,217 psi | 86% | 2612 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 57,537 psi | 89% | 2753 fps | 99.4% |
| Somchem S335 | <<locked>> | 82% | 58,755 psi | 90% | 2556 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 55,883 psi | 86% | 2635 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,521 psi | 85% | 2644 fps | 97.5% |
| Somchem S365 | <<locked>> | 94% | 56,594 psi | 87% | 2713 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 58,508 psi | 90% | 2730 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 82% | 56,260 psi | 87% | 2546 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,188 psi | 86% | 2562 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,927 psi | 88% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,506 psi | 85% | 2661 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,259 psi | 83% | 2661 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 84% | 57,769 psi | 89% | 2605 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 58,175 psi | 89% | 2713 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,608 psi | 86% | 2726 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,999 psi | 86% | 2795 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 47,688 psi | 73% | 2654 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,114 psi | 85% | 2628 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,985 psi | 88% | 2733 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,588 psi | 75% | 2776 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 58,552 psi | 90% | 2674 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,926 psi | 85% | 2677 fps | 99% |
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% | 53,795 psi | 83% | 2516 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,169 psi | 79% | 2543 fps | 99% |
| Accurate 3100 | <<locked>> | 82% | 30,777 psi | 47% | 2238 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 50,995 psi | 78% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,175 psi | 60% | 2428 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 94% | 47,427 psi | 73% | 2661 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 47,732 psi | 73% | 2510 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 37,710 psi | 58% | 2408 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 92% | 43,801 psi | 67% | 2559 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 98% | 34,389 psi | 53% | 2408 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,258 psi | 82% | 2720 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,399 psi | 74% | 2533 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,735 psi | 80% | 2598 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,985 psi | 58% | 2438 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,989 psi | 66% | 2546 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 37,594 psi | 58% | 2408 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 88% | 37,608 psi | 58% | 2454 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,934 psi | 43% | 2218 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,689 psi | 46% | 2280 fps | 95.6% |
| Alliant Reloder-26 | 49.4 gr | 80% | 29,704 psi | 46% | 2323 fps | 96.7% |
| Bofors RP15 | <<locked>> | 90% | 37,362 psi | 57% | 2444 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 48,979 psi | 75% | 2546 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 39,218 psi | 60% | 2520 fps | 95.1% |
| Bofors RP5 | <<locked>> | 88% | 37,608 psi | 58% | 2454 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 42,844 psi | 66% | 2434 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 39,943 psi | 61% | 2477 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 49,240 psi | 76% | 2559 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 41,017 psi | 63% | 2470 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 43,888 psi | 68% | 2487 fps | 97.4% |
| Hodgdon H4831 | <<locked>> | 92% | 46,731 psi | 72% | 2562 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 45,948 psi | 71% | 2549 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,578 psi | 55% | 2336 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,621 psi | 82% | 2638 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,173 psi | 57% | 2513 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 39,871 psi | 61% | 2484 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,412 psi | 42% | 1450 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 54,230 psi | 83% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,227 psi | 77% | 2539 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,373 psi | 81% | 2572 fps | 99.5% |
| IMR 4350 | <<locked>> | 80% | 38,464 psi | 59% | 2369 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,222 psi | 68% | 2461 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 37,565 psi | 58% | 2382 fps | 99.2% |
| IMR 4895 | <<locked>> | 80% | 53,098 psi | 82% | 2621 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 45,585 psi | 70% | 2510 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 41,727 psi | 64% | 2533 fps | 95% |
| Lovex S060 | <<locked>> | 80% | 54,752 psi | 84% | 2566 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 50,517 psi | 78% | 2533 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,901 psi | 64% | 2418 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 40,132 psi | 62% | 2402 fps | 97.8% |
| Lovex S071 | <<locked>> | 86% | 30,081 psi | 46% | 2221 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 55,042 psi | 85% | 2589 fps | 100% |
| Norma 203B | <<locked>> | 80% | 51,126 psi | 79% | 2585 fps | 100% |
| Norma 204 | <<locked>> | 80% | 38,014 psi | 58% | 2398 fps | 95.2% |
| Norma MRP | 50.4 gr | 84% | 34,461 psi | 53% | 2411 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 38,827 psi | 60% | 2421 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 80% | 51,561 psi | 79% | 2608 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 41,336 psi | 64% | 2539 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 37,637 psi | 58% | 2411 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 92% | 36,709 psi | 56% | 2425 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 43% | 1486 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,008 psi | 75% | 2546 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,672 psi | 70% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,885 psi | 60% | 2444 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,565 psi | 58% | 2454 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,098 psi | 52% | 2434 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 52,286 psi | 80% | 2543 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,166 psi | 71% | 2500 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 41,727 psi | 64% | 2444 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 84% | 36,608 psi | 56% | 2392 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,844 psi | 66% | 2434 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,901 psi | 64% | 2418 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 50,517 psi | 78% | 2533 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,132 psi | 62% | 2402 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,253 psi | 73% | 2549 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 54,694 psi | 84% | 2618 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,210 psi | 73% | 2398 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,988 psi | 63% | 2369 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 36,274 psi | 56% | 2385 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 55,405 psi | 85% | 2516 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 46,354 psi | 71% | 2497 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 45,527 psi | 70% | 2487 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 35,259 psi | 54% | 2382 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 34,809 psi | 54% | 2326 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 52,881 psi | 81% | 2503 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,895 psi | 81% | 2520 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,280 psi | 68% | 2428 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,248 psi | 62% | 2418 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 88% | 36,680 psi | 56% | 2359 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 51,082 psi | 79% | 2520 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,639 psi | 61% | 2421 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 30,995 psi | 48% | 2290 fps | 98.1% |
| Vihtavuori N560 | 54 gr | 90% | 42,714 psi | 66% | 2569 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 41,800 psi | 64% | 2546 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,204 psi | 60% | 2388 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,017 psi | 63% | 2470 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,671 psi | 38% | 2205 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 54,868 psi | 84% | 2625 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,885 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 | Barnes Solid RN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,844 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,844 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 50–90 %, 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, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 175gr | Barnes Solid RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Norma 217, ReloadSwiss RS 80, Vihtavuori N568 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.