Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 180gr | Berger VLD Target 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% | 57,232 psi | 88% | 2516 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 58,204 psi | 90% | 2602 fps | 99.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,637 psi | 87% | 2654 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 57,682 psi | 89% | 2572 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,839 psi | 84% | 2638 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 58,697 psi | 90% | 2795 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 86% | 57,580 psi | 89% | 2608 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,680 psi | 86% | 2687 fps | 99.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,087 psi | 88% | 2743 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 36,753 psi | 57% | 2434 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,058 psi | 88% | 2726 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 58,523 psi | 90% | 2628 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,056 psi | 85% | 2602 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,651 psi | 86% | 2690 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,927 psi | 88% | 2710 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 58,595 psi | 90% | 2726 fps | 99.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,202 psi | 86% | 2740 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,026 psi | 82% | 2661 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,180 psi | 71% | 2615 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 98% | 57,246 psi | 88% | 2802 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,300 psi | 79% | 2664 fps | 98.8% |
| Bofors RP3 | <<locked>> | 84% | 55,941 psi | 86% | 2598 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 42,061 psi | 65% | 2543 fps | 96.3% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,202 psi | 86% | 2740 fps | 99.4% |
| Bofors RP7 | <<locked>> | 90% | 58,595 psi | 90% | 2641 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,687 psi | 70% | 2552 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 84% | 56,144 psi | 86% | 2618 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 57,174 psi | 88% | 2694 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 88% | 56,478 psi | 87% | 2651 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 98% | 57,203 psi | 88% | 2687 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,883 psi | 86% | 2671 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,144 psi | 86% | 2618 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,493 psi | 88% | 2644 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,223 psi | 70% | 2654 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 90% | 57,203 psi | 88% | 2730 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,767 psi | 57% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,943 psi | 89% | 2608 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,072 psi | 88% | 2592 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,956 psi | 86% | 2582 fps | 99.8% |
| IMR 4350 | <<locked>> | 92% | 56,159 psi | 86% | 2628 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,579 psi | 87% | 2618 fps | 99.8% |
| IMR 4831 | <<locked>> | 94% | 58,813 psi | 90% | 2677 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,492 psi | 87% | 2628 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 58,479 psi | 90% | 2667 fps | 98.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,433 psi | 84% | 2717 fps | 98.4% |
| Lovex S060 | <<locked>> | 82% | 58,378 psi | 90% | 2572 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 57,363 psi | 88% | 2582 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,739 psi | 87% | 2612 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 58,233 psi | 90% | 2654 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,021 psi | 72% | 2520 fps | 99.6% |
| Norma 201 | <<locked>> | 82% | 58,421 psi | 90% | 2589 fps | 100% |
| Norma 203B | <<locked>> | 84% | 58,117 psi | 89% | 2638 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,739 psi | 87% | 2677 fps | 99.2% |
| Norma MRP | <<locked>> | 98% | 55,651 psi | 86% | 2759 fps | 99.9% |
| Norma URP | <<locked>> | 92% | 57,203 psi | 88% | 2674 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 58,813 psi | 90% | 2664 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,853 psi | 84% | 2733 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 92% | 55,738 psi | 86% | 2677 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,066 psi | 75% | 2621 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 57% | 1634 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,043 psi | 86% | 2608 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,318 psi | 87% | 2697 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 58,450 psi | 90% | 2713 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,753 psi | 87% | 2740 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,875 psi | 69% | 2644 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 55,854 psi | 86% | 2549 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,130 psi | 86% | 2598 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,261 psi | 88% | 2657 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 98% | 58,044 psi | 89% | 2717 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 90% | 58,595 psi | 90% | 2641 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,739 psi | 87% | 2612 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 57,363 psi | 88% | 2582 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 58,233 psi | 90% | 2654 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,609 psi | 89% | 2654 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 58,146 psi | 89% | 2621 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,840 psi | 87% | 2480 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,275 psi | 87% | 2569 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 57,551 psi | 89% | 2710 fps | 99.5% |
| Somchem S335 | <<locked>> | 82% | 58,726 psi | 90% | 2513 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 55,709 psi | 86% | 2589 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,347 psi | 85% | 2605 fps | 97.7% |
| Somchem S365 | <<locked>> | 94% | 56,753 psi | 87% | 2674 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 58,581 psi | 90% | 2690 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 82% | 56,173 psi | 86% | 2503 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,202 psi | 86% | 2520 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,188 psi | 88% | 2566 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,564 psi | 85% | 2618 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,389 psi | 84% | 2621 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 84% | 58,001 psi | 89% | 2566 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 58,407 psi | 90% | 2674 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,840 psi | 86% | 2687 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,825 psi | 86% | 2753 fps | 98.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 47,921 psi | 74% | 2618 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,143 psi | 85% | 2589 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,174 psi | 88% | 2694 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,501 psi | 75% | 2733 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 58,436 psi | 90% | 2628 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 58,798 psi | 90% | 2687 fps | 99.4% |
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% | 53,722 psi | 83% | 2474 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,271 psi | 79% | 2503 fps | 99.1% |
| Accurate 3100 | <<locked>> | 80% | 28,877 psi | 44% | 2156 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 50,952 psi | 78% | 2487 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,175 psi | 60% | 2392 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 44,324 psi | 68% | 2569 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 47,906 psi | 74% | 2470 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 37,826 psi | 58% | 2375 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 92% | 43,671 psi | 67% | 2520 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 96% | 32,416 psi | 50% | 2326 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,171 psi | 82% | 2674 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,631 psi | 75% | 2493 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,764 psi | 80% | 2556 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,956 psi | 58% | 2398 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,134 psi | 66% | 2510 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 37,681 psi | 58% | 2375 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 88% | 37,652 psi | 58% | 2418 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,934 psi | 43% | 2185 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,660 psi | 46% | 2247 fps | 95.9% |
| Alliant Reloder-26 | 48.4 gr | 80% | 29,849 psi | 46% | 2293 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 37,376 psi | 58% | 2411 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 49,008 psi | 75% | 2507 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 39,247 psi | 60% | 2484 fps | 95.4% |
| Bofors RP5 | <<locked>> | 88% | 37,652 psi | 58% | 2418 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 43,062 psi | 66% | 2398 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 39,929 psi | 61% | 2441 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 49,298 psi | 76% | 2520 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 41,089 psi | 63% | 2434 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 80% | 43,947 psi | 68% | 2451 fps | 97.6% |
| Hodgdon H4831 | <<locked>> | 90% | 43,772 psi | 67% | 2474 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 45,818 psi | 70% | 2510 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,520 psi | 55% | 2297 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,722 psi | 83% | 2595 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,318 psi | 57% | 2480 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 39,885 psi | 61% | 2448 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,499 psi | 42% | 1424 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 54,520 psi | 84% | 2562 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,415 psi | 78% | 2500 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,431 psi | 81% | 2530 fps | 99.6% |
| IMR 4350 | <<locked>> | 80% | 38,667 psi | 59% | 2339 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,440 psi | 68% | 2428 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 37,594 psi | 58% | 2346 fps | 99.3% |
| IMR 4895 | <<locked>> | 80% | 53,098 psi | 82% | 2579 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 42,902 psi | 66% | 2421 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 92% | 41,843 psi | 64% | 2497 fps | 95.3% |
| Lovex S060 | <<locked>> | 80% | 54,998 psi | 85% | 2526 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 50,720 psi | 78% | 2493 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,872 psi | 64% | 2379 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 40,132 psi | 62% | 2365 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 30,284 psi | 47% | 2192 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 54,969 psi | 85% | 2543 fps | 100% |
| Norma 203B | <<locked>> | 80% | 51,097 psi | 79% | 2543 fps | 100% |
| Norma 204 | <<locked>> | 80% | 38,101 psi | 59% | 2362 fps | 95.4% |
| Norma MRP | 48.1 gr | 82% | 32,169 psi | 49% | 2320 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 38,841 psi | 60% | 2382 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 80% | 51,459 psi | 79% | 2566 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 41,539 psi | 64% | 2507 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 37,724 psi | 58% | 2379 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 34,214 psi | 53% | 2333 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,065 psi | 43% | 1460 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,124 psi | 76% | 2507 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,788 psi | 70% | 2552 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,986 psi | 60% | 2411 fps | 99.3% |
| ReloadSwiss RS 70 | 47.9 gr | 80% | 37,478 psi | 58% | 2418 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,156 psi | 53% | 2402 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 52,518 psi | 81% | 2503 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,166 psi | 71% | 2457 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 41,872 psi | 64% | 2408 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 36,695 psi | 56% | 2356 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 43,062 psi | 66% | 2398 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,872 psi | 64% | 2379 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 50,720 psi | 78% | 2493 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,132 psi | 62% | 2365 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,355 psi | 73% | 2510 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 54,795 psi | 84% | 2575 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,340 psi | 73% | 2359 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,002 psi | 63% | 2329 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 36,347 psi | 56% | 2352 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 55,361 psi | 85% | 2474 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 46,311 psi | 71% | 2454 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 45,440 psi | 70% | 2451 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 35,476 psi | 55% | 2349 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 34,896 psi | 54% | 2290 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 53,011 psi | 82% | 2464 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,910 psi | 81% | 2477 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,266 psi | 68% | 2388 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,277 psi | 62% | 2382 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 34,389 psi | 53% | 2277 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 51,140 psi | 79% | 2477 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,726 psi | 61% | 2385 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 30,980 psi | 48% | 2254 fps | 98.3% |
| Vihtavuori N560 | <<locked>> | 90% | 42,641 psi | 66% | 2530 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 96% | 41,843 psi | 64% | 2510 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,146 psi | 60% | 2349 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,089 psi | 63% | 2434 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,729 psi | 38% | 2178 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 55,027 psi | 85% | 2585 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 36,506 psi | 56% | 2326 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 98 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 180gr | Berger VLD Target. Alliant Reloder-26 delivers the highest muzzle velocity at 2,802 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,802 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 180.0 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, Norma MRP rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 180gr | Berger VLD Target 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.