Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 160gr | Speer Deep Curl Soft Point bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Ramshot Grand.
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% | 56,101 psi | 86% | 2684 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 58,465 psi | 90% | 2766 fps | 99.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,274 psi | 85% | 2805 fps | 99.9% |
| Accurate 4064 | <<locked>> | 84% | 56,565 psi | 87% | 2740 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,348 psi | 88% | 2851 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 56,507 psi | 87% | 2772 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 58,117 psi | 89% | 2894 fps | 99% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,767 psi | 86% | 2894 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,782 psi | 86% | 2890 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,450 psi | 88% | 2795 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,551 psi | 89% | 2815 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 58,131 psi | 89% | 2904 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,651 psi | 86% | 2874 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,609 psi | 89% | 2887 fps | 99% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,766 psi | 84% | 2890 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,924 psi | 80% | 2818 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,962 psi | 69% | 2749 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 55,651 psi | 86% | 2959 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,198 psi | 77% | 2812 fps | 97.9% |
| Bofors RP3 | <<locked>> | 86% | 58,436 psi | 90% | 2812 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,766 psi | 84% | 2890 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 57,421 psi | 88% | 2799 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 86% | 58,566 psi | 90% | 2828 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,174 psi | 88% | 2867 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 92% | 57,290 psi | 88% | 2835 fps | 99.1% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 51,605 psi | 79% | 2769 fps | 96.2% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 58,552 psi | 90% | 2874 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 58,523 psi | 90% | 2825 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,260 psi | 87% | 2808 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,121 psi | 68% | 2785 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 90% | 55,912 psi | 86% | 2887 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,593 psi | 56% | 1719 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,869 psi | 86% | 2759 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,622 psi | 86% | 2733 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,317 psi | 85% | 2743 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,624 psi | 89% | 2779 fps | 99.7% |
| IMR 4350 | <<locked>> | 94% | 58,407 psi | 90% | 2831 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,680 psi | 86% | 2776 fps | 99.5% |
| IMR 4831 | <<locked>> | 98% | 58,407 psi | 90% | 2851 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,463 psi | 85% | 2792 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,392 psi | 88% | 2822 fps | 97.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,421 psi | 88% | 2933 fps | 98.1% |
| Lovex S060 | <<locked>> | 82% | 57,217 psi | 88% | 2733 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,101 psi | 86% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,637 psi | 86% | 2769 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 56,985 psi | 88% | 2812 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,948 psi | 71% | 2661 fps | 99% |
| Norma 201 | <<locked>> | 82% | 57,392 psi | 88% | 2753 fps | 100% |
| Norma 202 | <<locked>> | 82% | 58,233 psi | 90% | 2749 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,826 psi | 87% | 2802 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,579 psi | 86% | 2835 fps | 98.5% |
| Norma MRPᴾ | <<locked>> | 100% | 58,378 psi | 90% | 2972 fps | 99.8% |
| Norma URP | <<locked>> | 92% | 55,854 psi | 86% | 2831 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 57,696 psi | 89% | 2828 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,566 psi | 89% | 2943 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 94% | 58,407 psi | 90% | 2890 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,041 psi | 83% | 2858 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,289 psi | 57% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 58,494 psi | 90% | 2815 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,984 psi | 85% | 2864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,261 psi | 88% | 2874 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,738 psi | 86% | 2904 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,063 psi | 68% | 2782 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 84% | 58,218 psi | 90% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 58,291 psi | 90% | 2805 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,173 psi | 86% | 2808 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 98% | 56,768 psi | 87% | 2871 fps | 99% |
| Rottweil R 907 | <<locked>> | 90% | 57,421 psi | 88% | 2799 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,637 psi | 86% | 2769 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 56,101 psi | 86% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,985 psi | 88% | 2812 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,275 psi | 87% | 2815 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,174 psi | 88% | 2785 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 58,160 psi | 90% | 2680 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,724 psi | 86% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,259 psi | 85% | 2723 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,275 psi | 87% | 2867 fps | 98.9% |
| Somchem S335 | <<locked>> | 82% | 57,798 psi | 89% | 2680 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 58,334 psi | 90% | 2802 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 57,972 psi | 89% | 2805 fps | 97.3% |
| Somchem S365 | <<locked>> | 94% | 55,230 psi | 85% | 2831 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,435 psi | 88% | 2844 fps | 99.4% |
| Unknown powder | <<locked>> | 90% | 56,478 psi | 87% | 2838 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 58,233 psi | 90% | 2661 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 58,479 psi | 90% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 58,001 psi | 89% | 2720 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,362 psi | 87% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,855 psi | 88% | 2808 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,184 psi | 79% | 2740 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 84% | 57,522 psi | 89% | 2746 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,392 psi | 88% | 2854 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 58,030 psi | 89% | 2894 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,129 psi | 85% | 2913 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 57,870 psi | 89% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,174 psi | 88% | 2867 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,760 psi | 72% | 2881 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,637 psi | 86% | 2812 fps | 98.6% |
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% | 52,591 psi | 81% | 2635 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,194 psi | 70% | 2556 fps | 97.4% |
| Accurate 3100 | <<locked>> | 84% | 32,140 psi | 49% | 2375 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 49,835 psi | 77% | 2644 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,218 psi | 59% | 2526 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 47,065 psi | 72% | 2625 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 42,018 psi | 65% | 2615 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 94% | 45,818 psi | 71% | 2717 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,982 psi | 80% | 2835 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,572 psi | 73% | 2648 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,763 psi | 78% | 2717 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,072 psi | 57% | 2533 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,959 psi | 65% | 2651 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,742 psi | 64% | 2612 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,276 psi | 60% | 2605 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,209 psi | 42% | 2297 fps | 96.9% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,806 psi | 47% | 2411 fps | 95.1% |
| Alliant Reloder-26 | 52 gr | 80% | 29,022 psi | 45% | 2405 fps | 95.2% |
| Bofors RP15 | <<locked>> | 94% | 41,336 psi | 64% | 2644 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 47,892 psi | 74% | 2661 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 39,276 psi | 60% | 2605 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 42,148 psi | 65% | 2539 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 80% | 48,138 psi | 74% | 2671 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 43,584 psi | 67% | 2641 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 39,465 psi | 61% | 2516 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 48,341 psi | 74% | 2710 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 48,051 psi | 74% | 2707 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,650 psi | 53% | 2431 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,547 psi | 81% | 2756 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 38,841 psi | 60% | 2661 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 38,870 psi | 60% | 2579 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 42% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,501 psi | 76% | 2664 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,054 psi | 80% | 2684 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,180 psi | 71% | 2602 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,165 psi | 70% | 2572 fps | 98.1% |
| IMR 4350 | <<locked>> | 80% | 37,724 psi | 58% | 2467 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,511 psi | 67% | 2566 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 33,257 psi | 51% | 2402 fps | 97.6% |
| IMR 4895 | <<locked>> | 80% | 52,098 psi | 80% | 2740 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,645 psi | 73% | 2664 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 94% | 46,833 psi | 72% | 2749 fps | 95.7% |
| Lovex S060 | <<locked>> | 80% | 54,056 psi | 83% | 2690 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,748 psi | 77% | 2651 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,988 psi | 63% | 2520 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 39,189 psi | 60% | 2500 fps | 96.9% |
| Lovex S071 | <<locked>> | 90% | 33,431 psi | 51% | 2408 fps | 95.9% |
| Norma 201 | <<locked>> | 80% | 53,940 psi | 83% | 2707 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,679 psi | 84% | 2703 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,125 psi | 77% | 2700 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,453 psi | 65% | 2605 fps | 95.7% |
| Norma MRP | <<locked>> | 86% | 36,042 psi | 55% | 2559 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 37,811 psi | 58% | 2516 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 80% | 50,343 psi | 77% | 2723 fps | 100% |
| Ramshot Grand | 59.9 gr | 92% | 46,079 psi | 71% | 2749 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 36,811 psi | 57% | 2510 fps | 96.9% |
| Ramshot Magnum | <<locked>> | 92% | 39,856 psi | 61% | 2605 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,789 psi | 43% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,124 psi | 74% | 2654 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,585 psi | 69% | 2703 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,898 psi | 58% | 2543 fps | 98.5% |
| ReloadSwiss RS 70 | 51.5 gr | 80% | 36,651 psi | 56% | 2549 fps | 97.9% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 35,795 psi | 55% | 2582 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 51,372 psi | 79% | 2661 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,020 psi | 69% | 2605 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 43,758 psi | 67% | 2598 fps | 95% |
| Rottweil R 905 | <<locked>> | 88% | 40,828 psi | 63% | 2595 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 42,148 psi | 65% | 2539 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,988 psi | 63% | 2520 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 49,748 psi | 77% | 2651 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,189 psi | 60% | 2500 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,325 psi | 71% | 2661 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,780 psi | 83% | 2736 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,520 psi | 84% | 2635 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,195 psi | 71% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,205 psi | 62% | 2467 fps | 97% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,451 psi | 62% | 2589 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 54,389 psi | 84% | 2635 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,339 psi | 70% | 2605 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 47,703 psi | 73% | 2644 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 34,360 psi | 53% | 2477 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 36,332 psi | 56% | 2467 fps | 95.1% |
| Unknown powder | <<locked>> | 80% | 40,872 psi | 63% | 2572 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 80% | 51,866 psi | 80% | 2579 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 51,663 psi | 79% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,140 psi | 79% | 2628 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,899 psi | 60% | 2457 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,973 psi | 63% | 2549 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,450 psi | 61% | 2530 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 50,850 psi | 78% | 2654 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,423 psi | 64% | 2589 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 30,052 psi | 46% | 2372 fps | 97% |
| Vihtavuori N560 | <<locked>> | 96% | 48,196 psi | 74% | 2795 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,421 psi | 59% | 2490 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 43,584 psi | 67% | 2641 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,134 psi | 37% | 2274 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,829 psi | 64% | 2582 fps | 95.7% |
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 106 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 160gr | Speer Deep Curl Soft Point. Norma MRP delivers the highest muzzle velocity at 2,972 fps; across all powders the maximum-charge window runs from 1,719 fps to 2,972 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:12.5 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. ReloadSwiss RS 70, Alliant Reloder-26, Ramshot Grand rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 160gr | Speer Deep Curl Soft Point they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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.