Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 175gr | Berger Elite Hunter bullet and 99 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 Hodgdon Superformance.
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% | 56,376 psi | 87% | 2546 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,334 psi | 88% | 2625 fps | 99.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,303 psi | 85% | 2674 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 56,782 psi | 87% | 2602 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,783 psi | 89% | 2717 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 57,580 psi | 89% | 2818 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 86% | 56,768 psi | 87% | 2638 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 58,479 psi | 90% | 2766 fps | 99.3% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,883 psi | 86% | 2762 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 35,969 psi | 55% | 2448 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,333 psi | 87% | 2759 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,609 psi | 89% | 2657 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,943 psi | 89% | 2680 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 58,204 psi | 90% | 2762 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,072 psi | 86% | 2740 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,754 psi | 89% | 2753 fps | 99.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,897 psi | 84% | 2759 fps | 99.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,083 psi | 80% | 2687 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,165 psi | 69% | 2631 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,028 psi | 86% | 2828 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,415 psi | 78% | 2690 fps | 98.5% |
| Bofors RP3 | <<locked>> | 86% | 58,552 psi | 90% | 2674 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,897 psi | 84% | 2759 fps | 99.2% |
| Bofors RP7 | <<locked>> | 90% | 57,653 psi | 89% | 2667 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 44,976 psi | 69% | 2572 fps | 96.7% |
| Hodgdon H380 | <<locked>> | 84% | 55,230 psi | 85% | 2644 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,115 psi | 86% | 2717 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 88% | 55,883 psi | 86% | 2680 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 98% | 56,347 psi | 87% | 2710 fps | 97.7% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 58,682 psi | 90% | 2743 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 58,711 psi | 90% | 2690 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,565 psi | 87% | 2674 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,193 psi | 68% | 2667 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 90% | 56,231 psi | 87% | 2756 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,637 psi | 56% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,145 psi | 88% | 2638 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,289 psi | 87% | 2618 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 58,668 psi | 90% | 2654 fps | 99.9% |
| IMR 4350 | <<locked>> | 94% | 58,610 psi | 90% | 2700 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,782 psi | 86% | 2641 fps | 99.7% |
| IMR 4831 | <<locked>> | 94% | 58,030 psi | 89% | 2707 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,651 psi | 86% | 2654 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,725 psi | 89% | 2697 fps | 98% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,534 psi | 82% | 2740 fps | 97.9% |
| Lovex S060 | <<locked>> | 82% | 57,682 psi | 89% | 2602 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,550 psi | 87% | 2612 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,144 psi | 86% | 2641 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 57,261 psi | 88% | 2680 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,977 psi | 71% | 2539 fps | 99.4% |
| Norma 201 | <<locked>> | 82% | 57,653 psi | 89% | 2618 fps | 100% |
| Norma 202 | <<locked>> | 82% | 58,552 psi | 90% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 84% | 57,232 psi | 88% | 2667 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,999 psi | 86% | 2707 fps | 99% |
| Norma MRPᴾ | <<locked>> | 100% | 58,624 psi | 90% | 2841 fps | 100% |
| Norma URP | <<locked>> | 92% | 56,115 psi | 86% | 2700 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 58,117 psi | 89% | 2694 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,853 psi | 83% | 2756 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 94% | 58,755 psi | 90% | 2759 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,109 psi | 74% | 2641 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,420 psi | 58% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,143 psi | 85% | 2635 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,506 psi | 85% | 2726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,551 psi | 89% | 2740 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,854 psi | 86% | 2769 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,019 psi | 68% | 2661 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 84% | 58,537 psi | 90% | 2621 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 58,755 psi | 90% | 2671 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,507 psi | 87% | 2684 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 98% | 57,116 psi | 88% | 2743 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 90% | 57,653 psi | 89% | 2667 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,144 psi | 86% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 56,550 psi | 87% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,261 psi | 88% | 2680 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,608 psi | 87% | 2680 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,348 psi | 88% | 2651 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 58,378 psi | 90% | 2546 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,101 psi | 86% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,695 psi | 86% | 2598 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,637 psi | 87% | 2736 fps | 99.3% |
| Somchem S335 | <<locked>> | 82% | 58,015 psi | 89% | 2543 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 58,334 psi | 90% | 2661 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 58,262 psi | 90% | 2680 fps | 97.9% |
| Somchem S365 | <<locked>> | 94% | 55,550 psi | 85% | 2700 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,682 psi | 89% | 2717 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 82% | 55,434 psi | 85% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,434 psi | 85% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,304 psi | 87% | 2595 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 58,378 psi | 90% | 2690 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,214 psi | 82% | 2641 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 84% | 57,159 psi | 88% | 2595 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,290 psi | 88% | 2700 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 58,160 psi | 89% | 2756 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,882 psi | 84% | 2776 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 46,949 psi | 72% | 2638 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 58,102 psi | 89% | 2661 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,115 psi | 86% | 2717 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,152 psi | 73% | 2756 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,856 psi | 89% | 2661 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,885 psi | 89% | 2713 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% | 52,953 psi | 81% | 2503 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,531 psi | 78% | 2526 fps | 98.8% |
| Accurate 3100 | <<locked>> | 82% | 30,197 psi | 46% | 2221 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 50,198 psi | 77% | 2513 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,450 psi | 59% | 2411 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 94% | 46,630 psi | 72% | 2644 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 47,282 psi | 73% | 2500 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 39,595 psi | 61% | 2448 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 92% | 43,105 psi | 66% | 2543 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 98% | 33,852 psi | 52% | 2392 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,533 psi | 81% | 2703 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,935 psi | 74% | 2520 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,024 psi | 78% | 2585 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,318 psi | 57% | 2418 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,337 psi | 65% | 2533 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,392 psi | 61% | 2444 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 37,086 psi | 57% | 2438 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,441 psi | 42% | 2201 fps | 97.8% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,138 psi | 45% | 2260 fps | 95.2% |
| Alliant Reloder-26 | 48.7 gr | 80% | 29,240 psi | 45% | 2306 fps | 96.3% |
| Bofors RP15 | <<locked>> | 92% | 39,001 psi | 60% | 2477 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 48,240 psi | 74% | 2533 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 37,086 psi | 57% | 2438 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 42,467 psi | 65% | 2421 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 98% | 41,916 psi | 64% | 2513 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 48,530 psi | 75% | 2546 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 40,364 psi | 62% | 2457 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 43,279 psi | 67% | 2470 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 45,977 psi | 71% | 2546 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 92% | 45,194 psi | 70% | 2533 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,896 psi | 54% | 2320 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,895 psi | 81% | 2625 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 36,564 psi | 56% | 2490 fps | 95.2% |
| Hodgdon Superformance | 50.2 gr | 80% | 39,117 psi | 60% | 2467 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,441 psi | 42% | 1447 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,795 psi | 83% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,763 psi | 77% | 2530 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,750 psi | 80% | 2556 fps | 99.4% |
| IMR 4350 | <<locked>> | 80% | 38,087 psi | 59% | 2359 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,845 psi | 67% | 2451 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 36,898 psi | 57% | 2365 fps | 99% |
| IMR 4895 | <<locked>> | 80% | 52,330 psi | 81% | 2608 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 45,078 psi | 69% | 2493 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 94% | 43,947 psi | 68% | 2572 fps | 95.7% |
| Lovex S060 | <<locked>> | 80% | 54,360 psi | 84% | 2556 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 50,053 psi | 77% | 2523 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,263 psi | 63% | 2402 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 39,537 psi | 61% | 2388 fps | 97.6% |
| Lovex S071 | <<locked>> | 86% | 29,660 psi | 46% | 2208 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 54,259 psi | 83% | 2572 fps | 100% |
| Norma 202 | <<locked>> | 80% | 55,100 psi | 85% | 2569 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,357 psi | 77% | 2572 fps | 100% |
| Norma 204 | <<locked>> | 82% | 39,885 psi | 61% | 2434 fps | 95.7% |
| Norma MRP | <<locked>> | 84% | 33,750 psi | 52% | 2392 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 38,159 psi | 59% | 2405 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 80% | 50,850 psi | 78% | 2595 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 43,613 psi | 67% | 2579 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 37,028 psi | 57% | 2398 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 36,085 psi | 56% | 2408 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 43% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,385 psi | 74% | 2530 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,976 psi | 69% | 2575 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,247 psi | 59% | 2431 fps | 99.1% |
| ReloadSwiss RS 70 | 48.3 gr | 80% | 37,028 psi | 57% | 2441 fps | 98.6% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 33,562 psi | 52% | 2415 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 51,808 psi | 80% | 2533 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,411 psi | 70% | 2484 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 43,830 psi | 67% | 2480 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 86% | 38,392 psi | 59% | 2425 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 42,467 psi | 65% | 2421 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,263 psi | 63% | 2402 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 50,053 psi | 77% | 2523 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,537 psi | 61% | 2388 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,572 psi | 72% | 2536 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,998 psi | 83% | 2605 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,839 psi | 84% | 2500 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,485 psi | 72% | 2385 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,393 psi | 62% | 2352 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 38,043 psi | 59% | 2421 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 54,679 psi | 84% | 2503 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,658 psi | 70% | 2480 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 44,846 psi | 69% | 2474 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 34,751 psi | 53% | 2369 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 34,243 psi | 53% | 2310 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 52,025 psi | 80% | 2490 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,141 psi | 80% | 2507 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,613 psi | 67% | 2415 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,552 psi | 61% | 2402 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 35,969 psi | 55% | 2343 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 50,415 psi | 78% | 2507 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,059 psi | 60% | 2405 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 30,327 psi | 47% | 2270 fps | 97.8% |
| Vihtavuori N560 | <<locked>> | 92% | 44,933 psi | 69% | 2608 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 98% | 43,772 psi | 67% | 2582 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,450 psi | 59% | 2372 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 40,364 psi | 62% | 2457 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,265 psi | 37% | 2185 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 54,172 psi | 83% | 2612 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,406 psi | 59% | 2398 fps | 95.4% |
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 99 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 175gr | Berger Elite Hunter. Norma MRP delivers the highest muzzle velocity at 2,841 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,841 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:9.5 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, Hodgdon Superformance rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 175gr | Berger Elite Hunter 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.