Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:160 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.026"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:72.6 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:11.0
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 160gr | Sierra GameKing bullet and 103 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 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>> | 84% | 58,697 psi | 90% | 2710 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,493 psi | 88% | 2746 fps | 99.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,969 psi | 83% | 2782 fps | 99.8% |
| Accurate 4064 | <<locked>> | 86% | 58,798 psi | 90% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,072 psi | 86% | 2828 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 57,798 psi | 89% | 2795 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,550 psi | 85% | 2753 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 57,130 psi | 88% | 2874 fps | 98.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,592 psi | 84% | 2867 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 58,581 psi | 90% | 2927 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,130 psi | 88% | 2871 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,173 psi | 86% | 2772 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,550 psi | 87% | 2795 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,623 psi | 87% | 2877 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 58,146 psi | 89% | 2904 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,318 psi | 87% | 2861 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,447 psi | 82% | 2864 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,618 psi | 78% | 2799 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,859 psi | 67% | 2726 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 58,233 psi | 90% | 2992 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,870 psi | 89% | 2815 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,965 psi | 75% | 2785 fps | 97.5% |
| Bofors RP3 | <<locked>> | 86% | 57,130 psi | 88% | 2789 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,447 psi | 82% | 2864 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 56,304 psi | 87% | 2776 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 86% | 57,667 psi | 89% | 2812 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,753 psi | 86% | 2844 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 92% | 56,173 psi | 86% | 2812 fps | 98.8% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 57,348 psi | 88% | 2851 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 82% | 58,465 psi | 90% | 2802 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,985 psi | 88% | 2802 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,550 psi | 85% | 2795 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,091 psi | 66% | 2756 fps | 96.8% |
| Hodgdon Superformance | <<locked>> | 92% | 58,711 psi | 90% | 2920 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,521 psi | 56% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 58,508 psi | 90% | 2789 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,856 psi | 89% | 2756 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,899 psi | 89% | 2776 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,463 psi | 87% | 2756 fps | 99.5% |
| IMR 4350 | <<locked>> | 94% | 57,363 psi | 88% | 2812 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 58,131 psi | 89% | 2805 fps | 99.6% |
| IMR 4831 | <<locked>> | 98% | 57,290 psi | 88% | 2828 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 58,059 psi | 89% | 2822 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,521 psi | 87% | 2802 fps | 97.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 56,231 psi | 87% | 2907 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 82% | 58,508 psi | 90% | 2766 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,521 psi | 87% | 2720 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 58,697 psi | 90% | 2776 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 58,044 psi | 89% | 2799 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 55,912 psi | 86% | 2792 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,643 psi | 69% | 2635 fps | 98.8% |
| Norma 201 | <<locked>> | 82% | 56,347 psi | 87% | 2733 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,188 psi | 88% | 2730 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,840 psi | 86% | 2782 fps | 100% |
| Norma 204 | <<locked>> | 94% | 58,291 psi | 90% | 2867 fps | 98.8% |
| Norma MRPᴾ | <<locked>> | 100% | 56,739 psi | 87% | 2946 fps | 99.7% |
| Norma URP | <<locked>> | 94% | 58,407 psi | 90% | 2861 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,492 psi | 87% | 2808 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,101 psi | 86% | 2913 fps | 98% |
| Ramshot Hunter | <<locked>> | 94% | 57,043 psi | 88% | 2867 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,359 psi | 81% | 2825 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,246 psi | 57% | 1752 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,406 psi | 88% | 2795 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,740 psi | 89% | 2864 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 57,783 psi | 89% | 2894 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,854 psi | 86% | 2851 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 58,189 psi | 90% | 2933 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,975 psi | 66% | 2749 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 84% | 57,174 psi | 88% | 2740 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,305 psi | 88% | 2789 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 58,552 psi | 90% | 2838 fps | 98% |
| Rottweil R 905 | <<locked>> | 98% | 55,405 psi | 85% | 2844 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 90% | 56,304 psi | 87% | 2776 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 58,044 psi | 89% | 2799 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 58,508 psi | 90% | 2766 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 58,697 psi | 90% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,912 psi | 86% | 2792 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 58,726 psi | 90% | 2841 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,289 psi | 87% | 2769 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,072 psi | 88% | 2661 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 58,102 psi | 89% | 2667 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 57,870 psi | 89% | 2753 fps | 99.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 58,755 psi | 90% | 2897 fps | 99.1% |
| Somchem S335 | <<locked>> | 82% | 56,782 psi | 87% | 2661 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,043 psi | 88% | 2779 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 56,913 psi | 88% | 2782 fps | 97% |
| Somchem S365 | <<locked>> | 96% | 57,812 psi | 89% | 2864 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,159 psi | 86% | 2822 fps | 99.3% |
| Unknown powder | <<locked>> | 90% | 55,288 psi | 85% | 2815 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 57,624 psi | 89% | 2644 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 57,624 psi | 89% | 2694 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 57,653 psi | 89% | 2710 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 58,305 psi | 90% | 2753 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,884 psi | 88% | 2805 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,982 psi | 80% | 2746 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 84% | 55,999 psi | 86% | 2710 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,956 psi | 86% | 2812 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,579 psi | 87% | 2871 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,029 psi | 88% | 2933 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,623 psi | 87% | 2776 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,753 psi | 86% | 2844 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,643 psi | 70% | 2858 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 58,320 psi | 90% | 2844 fps | 98.8% |
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% | 51,735 psi | 80% | 2618 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,425 psi | 68% | 2536 fps | 97.2% |
| Accurate 3100 | <<locked>> | 86% | 33,562 psi | 52% | 2408 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 49,008 psi | 75% | 2628 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,246 psi | 57% | 2503 fps | 98.5% |
| ADI AR 2206H | <<locked>> | 80% | 54,244 psi | 83% | 2743 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 46,108 psi | 71% | 2602 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 41,307 psi | 64% | 2595 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 96% | 47,805 psi | 74% | 2746 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,952 psi | 78% | 2812 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,205 psi | 63% | 2592 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,557 psi | 72% | 2625 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,777 psi | 77% | 2694 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,405 psi | 56% | 2513 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,075 psi | 63% | 2631 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,770 psi | 63% | 2585 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,959 psi | 63% | 2635 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,701 psi | 41% | 2280 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,039 psi | 49% | 2444 fps | 95.6% |
| Alliant Reloder-26 | 52.2 gr | 82% | 30,298 psi | 47% | 2441 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 54,056 psi | 83% | 2762 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 40,408 psi | 62% | 2621 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 46,920 psi | 72% | 2638 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,959 psi | 63% | 2635 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 41,292 psi | 64% | 2516 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 47,224 psi | 73% | 2651 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 42,467 psi | 65% | 2615 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 80% | 38,812 psi | 60% | 2497 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,125 psi | 77% | 2736 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 54,868 psi | 84% | 2753 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,982 psi | 52% | 2411 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,559 psi | 75% | 2690 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,422 psi | 62% | 2694 fps | 95.7% |
| Hodgdon Superformance | 52.6 gr | 80% | 38,189 psi | 59% | 2559 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,296 psi | 42% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,762 psi | 75% | 2648 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,111 psi | 79% | 2664 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,397 psi | 70% | 2582 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,527 psi | 69% | 2556 fps | 97.9% |
| IMR 4350 | <<locked>> | 80% | 36,927 psi | 57% | 2444 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,656 psi | 66% | 2546 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 32,561 psi | 50% | 2382 fps | 97.3% |
| IMR 4895 | <<locked>> | 80% | 51,053 psi | 79% | 2720 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 46,746 psi | 72% | 2641 fps | 95% |
| IMR 7828 SSC | <<locked>> | 94% | 45,745 psi | 70% | 2723 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 80% | 54,520 psi | 84% | 2717 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 53,098 psi | 82% | 2671 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,733 psi | 75% | 2631 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,364 psi | 62% | 2500 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 38,566 psi | 59% | 2480 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 32,445 psi | 50% | 2382 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 53,156 psi | 82% | 2690 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,635 psi | 83% | 2684 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,124 psi | 76% | 2680 fps | 100% |
| Norma 204 | <<locked>> | 84% | 41,655 psi | 64% | 2582 fps | 95.3% |
| Norma MRP | <<locked>> | 88% | 37,536 psi | 58% | 2592 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 37,086 psi | 57% | 2500 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 49,443 psi | 76% | 2703 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 44,976 psi | 69% | 2720 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 35,824 psi | 55% | 2480 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 92% | 38,928 psi | 60% | 2575 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,789 psi | 43% | 1565 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,268 psi | 73% | 2635 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,737 psi | 83% | 2808 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,656 psi | 67% | 2684 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,043 psi | 57% | 2520 fps | 98.2% |
| ReloadSwiss RS 70 | 50.5 gr | 80% | 35,955 psi | 55% | 2526 fps | 97.6% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,275 psi | 57% | 2615 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 50,575 psi | 78% | 2641 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,251 psi | 68% | 2589 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,643 psi | 70% | 2628 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 88% | 39,769 psi | 61% | 2569 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 41,292 psi | 64% | 2516 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,364 psi | 62% | 2500 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 54,520 psi | 84% | 2717 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 48,733 psi | 75% | 2631 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,566 psi | 59% | 2480 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,165 psi | 69% | 2638 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,576 psi | 81% | 2713 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,751 psi | 83% | 2618 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,455 psi | 70% | 2493 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,407 psi | 61% | 2444 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,392 psi | 61% | 2562 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 53,664 psi | 83% | 2621 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,614 psi | 69% | 2589 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,951 psi | 77% | 2677 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 33,446 psi | 51% | 2457 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 37,956 psi | 58% | 2500 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 39,972 psi | 61% | 2552 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 80% | 54,317 psi | 84% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,749 psi | 78% | 2605 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,024 psi | 78% | 2621 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,540 psi | 65% | 2520 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,435 psi | 59% | 2497 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 39,842 psi | 61% | 2533 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 49,153 psi | 76% | 2615 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,840 psi | 58% | 2497 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 29,327 psi | 45% | 2352 fps | 96.6% |
| Vihtavuori N560 | <<locked>> | 94% | 46,586 psi | 72% | 2756 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,536 psi | 58% | 2467 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 42,467 psi | 65% | 2615 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,121 psi | 39% | 2310 fps | 96.4% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,930 psi | 63% | 2559 fps | 95.3% |
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 | 160gr | Sierra GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,992 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 56–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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, Hodgdon Superformance rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 160gr | Sierra GameKing 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.