Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:166 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 | 166gr | Peregrine VRG-2 bullet and 105 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>> | 84% | 58,392 psi | 90% | 2664 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,608 psi | 87% | 2703 fps | 99.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,157 psi | 83% | 2743 fps | 99.9% |
| Accurate 4064 | <<locked>> | 84% | 55,274 psi | 85% | 2674 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,608 psi | 87% | 2792 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 56,478 psi | 87% | 2887 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 82% | 58,015 psi | 89% | 2753 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,825 psi | 86% | 2713 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 57,667 psi | 89% | 2841 fps | 99.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,100 psi | 85% | 2835 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,274 psi | 85% | 2831 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,667 psi | 89% | 2835 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,681 psi | 87% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,811 psi | 87% | 2756 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 57,479 psi | 88% | 2844 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,911 psi | 84% | 2812 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,826 psi | 87% | 2825 fps | 99.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,940 psi | 83% | 2828 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,024 psi | 78% | 2759 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,324 psi | 68% | 2697 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,911 psi | 84% | 2897 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 58,218 psi | 90% | 2776 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,632 psi | 76% | 2759 fps | 98.1% |
| Bofors RP3 | <<locked>> | 86% | 57,580 psi | 89% | 2753 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,940 psi | 83% | 2828 fps | 98.9% |
| Bofors RP7 | <<locked>> | 90% | 56,811 psi | 87% | 2743 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 44,048 psi | 68% | 2635 fps | 96% |
| Hodgdon H380 | <<locked>> | 86% | 57,899 psi | 89% | 2772 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 55,230 psi | 85% | 2792 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 90% | 58,740 psi | 90% | 2808 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 98% | 55,303 psi | 85% | 2782 fps | 97.3% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 57,870 psi | 89% | 2818 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 82% | 58,697 psi | 90% | 2759 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 57,812 psi | 89% | 2766 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,608 psi | 86% | 2749 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,294 psi | 67% | 2726 fps | 97.5% |
| Hodgdon Superformance | <<locked>> | 90% | 55,477 psi | 85% | 2831 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,419 psi | 56% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,376 psi | 87% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,463 psi | 85% | 2697 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,928 psi | 89% | 2733 fps | 99.8% |
| IMR 4350 | <<locked>> | 94% | 57,769 psi | 89% | 2776 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 58,479 psi | 90% | 2769 fps | 99.8% |
| IMR 4831 | <<locked>> | 94% | 56,956 psi | 88% | 2782 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 58,305 psi | 90% | 2782 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,942 psi | 88% | 2769 fps | 97.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,707 psi | 81% | 2812 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 82% | 58,653 psi | 90% | 2723 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,797 psi | 87% | 2680 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,521 psi | 85% | 2687 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 58,581 psi | 90% | 2762 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 56,434 psi | 87% | 2759 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,889 psi | 69% | 2602 fps | 99.1% |
| Norma 201 | <<locked>> | 82% | 56,695 psi | 87% | 2697 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,377 psi | 88% | 2690 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,043 psi | 86% | 2743 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,984 psi | 85% | 2776 fps | 98.6% |
| Norma MRPᴾ | <<locked>> | 100% | 57,740 psi | 89% | 2913 fps | 99.9% |
| Norma URP | <<locked>> | 94% | 58,798 psi | 90% | 2822 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 57,203 psi | 88% | 2772 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,026 psi | 82% | 2828 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 94% | 57,841 psi | 89% | 2835 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,094 psi | 72% | 2703 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 57% | 1722 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 58,001 psi | 89% | 2762 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 58,131 psi | 89% | 2825 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 58,421 psi | 90% | 2854 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 56,550 psi | 87% | 2815 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,926 psi | 85% | 2844 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,149 psi | 66% | 2720 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 84% | 57,203 psi | 88% | 2694 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,421 psi | 88% | 2746 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,579 psi | 86% | 2756 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 98% | 56,188 psi | 86% | 2815 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 90% | 56,811 psi | 87% | 2743 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 58,581 psi | 90% | 2762 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 58,653 psi | 90% | 2723 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 55,521 psi | 85% | 2687 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,434 psi | 87% | 2759 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,767 psi | 86% | 2759 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,550 psi | 87% | 2726 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,566 psi | 89% | 2625 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 58,740 psi | 90% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 58,378 psi | 90% | 2723 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,695 psi | 86% | 2808 fps | 99% |
| Somchem S335 | <<locked>> | 82% | 57,174 psi | 88% | 2625 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,537 psi | 89% | 2743 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 57,305 psi | 88% | 2749 fps | 97.5% |
| Somchem S365 | <<locked>> | 96% | 58,363 psi | 90% | 2822 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,811 psi | 87% | 2789 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 82% | 58,146 psi | 89% | 2605 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 57,798 psi | 89% | 2651 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 58,247 psi | 90% | 2671 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,172 psi | 85% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 57,580 psi | 89% | 2772 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,359 psi | 81% | 2713 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 84% | 56,202 psi | 86% | 2671 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,260 psi | 87% | 2772 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,942 psi | 88% | 2831 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,986 psi | 89% | 2907 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 57,145 psi | 88% | 2736 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,230 psi | 85% | 2792 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,963 psi | 71% | 2822 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,869 psi | 87% | 2736 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,203 psi | 88% | 2789 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% | 51,314 psi | 79% | 2572 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,487 psi | 76% | 2595 fps | 98.5% |
| Accurate 3100 | <<locked>> | 84% | 31,038 psi | 48% | 2313 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 48,704 psi | 75% | 2582 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,057 psi | 57% | 2464 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 96% | 48,965 psi | 75% | 2766 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 54,404 psi | 84% | 2703 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 46,485 psi | 72% | 2569 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 38,740 psi | 60% | 2507 fps | 95% |
| ADI AR 2213 | <<locked>> | 94% | 45,194 psi | 70% | 2661 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,343 psi | 79% | 2776 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 38,885 psi | 60% | 2507 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,876 psi | 72% | 2592 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,879 psi | 77% | 2654 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,434 psi | 56% | 2480 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,466 psi | 64% | 2598 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 38,479 psi | 59% | 2500 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 90% | 38,653 psi | 59% | 2549 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,426 psi | 41% | 2241 fps | 96.9% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,052 psi | 46% | 2359 fps | 95.2% |
| Alliant Reloder-26 | 51 gr | 80% | 28,123 psi | 43% | 2346 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 54,665 psi | 84% | 2726 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 40,538 psi | 62% | 2589 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 47,079 psi | 72% | 2602 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 38,653 psi | 59% | 2549 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 41,437 psi | 64% | 2484 fps | 97.1% |
| Hodgdon H1000 | <<locked>> | 98% | 41,162 psi | 63% | 2575 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 47,500 psi | 73% | 2615 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 39,378 psi | 61% | 2516 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 80% | 42,438 psi | 65% | 2536 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 94% | 48,254 psi | 74% | 2667 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 47,442 psi | 73% | 2654 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 55,056 psi | 85% | 2710 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,924 psi | 52% | 2375 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,112 psi | 80% | 2700 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 37,942 psi | 58% | 2602 fps | 95.4% |
| Hodgdon Superformance | 52.6 gr | 80% | 38,247 psi | 59% | 2523 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,180 psi | 42% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,837 psi | 81% | 2667 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,878 psi | 75% | 2602 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,010 psi | 78% | 2628 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 37,115 psi | 57% | 2415 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,960 psi | 66% | 2513 fps | 97.8% |
| IMR 4831 | <<locked>> | 80% | 35,752 psi | 55% | 2421 fps | 98.6% |
| IMR 4895 | <<locked>> | 80% | 51,198 psi | 79% | 2680 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,210 psi | 73% | 2612 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 45,992 psi | 71% | 2694 fps | 95.9% |
| Lovex D073.6 | <<locked>> | 80% | 54,926 psi | 85% | 2677 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 53,592 psi | 82% | 2635 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,008 psi | 75% | 2595 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,219 psi | 62% | 2461 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 38,392 psi | 59% | 2444 fps | 97% |
| Lovex S071 | <<locked>> | 88% | 30,327 psi | 47% | 2297 fps | 95% |
| Norma 201 | <<locked>> | 80% | 53,113 psi | 82% | 2648 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,070 psi | 83% | 2644 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,226 psi | 76% | 2641 fps | 100% |
| Norma 204 | <<locked>> | 82% | 39,044 psi | 60% | 2493 fps | 95% |
| Norma MRP | <<locked>> | 86% | 35,128 psi | 54% | 2497 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 37,086 psi | 57% | 2461 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 80% | 49,690 psi | 76% | 2664 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 42,656 psi | 66% | 2638 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 36,013 psi | 55% | 2451 fps | 97% |
| Ramshot Magnum | <<locked>> | 94% | 37,623 psi | 58% | 2516 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,644 psi | 43% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,616 psi | 73% | 2602 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 54,331 psi | 84% | 2769 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,106 psi | 68% | 2648 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,014 psi | 57% | 2484 fps | 98.6% |
| ReloadSwiss RS 70 | 50.5 gr | 80% | 35,911 psi | 55% | 2493 fps | 98% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 34,882 psi | 54% | 2523 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 50,517 psi | 78% | 2602 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,121 psi | 68% | 2546 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 43,120 psi | 66% | 2546 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 88% | 40,103 psi | 62% | 2539 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 41,437 psi | 64% | 2484 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,219 psi | 62% | 2461 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 54,926 psi | 85% | 2677 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 49,008 psi | 75% | 2595 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,392 psi | 59% | 2444 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,585 psi | 70% | 2605 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,069 psi | 82% | 2680 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,186 psi | 83% | 2582 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,788 psi | 70% | 2457 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,233 psi | 60% | 2408 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,740 psi | 61% | 2533 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 53,693 psi | 83% | 2579 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,541 psi | 69% | 2546 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 47,050 psi | 72% | 2589 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 33,576 psi | 52% | 2421 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 35,636 psi | 55% | 2415 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 54,810 psi | 84% | 2566 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 51,140 psi | 79% | 2566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,155 psi | 79% | 2579 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,511 psi | 65% | 2480 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,479 psi | 59% | 2461 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 90% | 37,507 psi | 58% | 2451 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 49,487 psi | 76% | 2579 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,000 psi | 58% | 2464 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 29,095 psi | 45% | 2313 fps | 97% |
| Vihtavuori N560 | <<locked>> | 94% | 47,108 psi | 72% | 2726 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,768 psi | 58% | 2438 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 39,378 psi | 61% | 2516 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,206 psi | 36% | 2208 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,055 psi | 82% | 2684 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,103 psi | 62% | 2507 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 105 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 166gr | Peregrine VRG-2. Norma MRP delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,913 fps. Accurate 3100 gives the best case fill at 100 %, and 105 of the 105 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 166.0 gr projectile in 0.284" calls for a 1:11.0 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 | 166gr | Peregrine VRG-2 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.