Load Specifications
Bullet:.284 | 150gr | Osprey Virtus
Bullet Manufacturer:Virtus
Bullet Weight:150 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:1:9.0
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 150gr | Osprey Virtus bullet and 107 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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 2015 | <<locked>> | 82% | 56,434 psi | 87% | 2733 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,288 psi | 85% | 2756 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,377 psi | 88% | 2831 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,943 psi | 89% | 2828 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,557 psi | 72% | 2743 fps | 98.4% |
| Accurate 4064 | <<locked>> | 88% | 55,869 psi | 86% | 2812 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 56,347 psi | 87% | 2913 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 55,883 psi | 86% | 2848 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 57,029 psi | 88% | 2851 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,360 psi | 84% | 2900 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 58,291 psi | 90% | 2844 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,043 psi | 86% | 2762 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,014 psi | 86% | 2972 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 57,493 psi | 88% | 2871 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,928 psi | 89% | 2897 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 57,464 psi | 88% | 2972 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,071 psi | 85% | 2949 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,316 psi | 82% | 2887 fps | 97.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 46,746 psi | 72% | 2818 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,150 psi | 68% | 2769 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,609 psi | 59% | 2674 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,140 psi | 77% | 2953 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,738 psi | 86% | 2864 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 58,305 psi | 90% | 2887 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 46,746 psi | 72% | 2818 fps | 96.1% |
| Bofors RP7 | <<locked>> | 94% | 57,827 psi | 89% | 2871 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,028 psi | 86% | 2772 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 58,015 psi | 89% | 2874 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,984 psi | 85% | 2851 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 55,506 psi | 85% | 2913 fps | 99% |
| Hodgdon H4350 | <<locked>> | 92% | 55,666 psi | 86% | 2874 fps | 98% |
| Hodgdon H4895 | <<locked>> | 84% | 56,478 psi | 87% | 2858 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,435 psi | 88% | 2890 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,449 psi | 87% | 2894 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,782 psi | 86% | 2953 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,737 psi | 55% | 1739 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 57,827 psi | 89% | 2858 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,014 psi | 88% | 2831 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,507 psi | 87% | 2831 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,014 psi | 86% | 2818 fps | 98.9% |
| IMR 4350 | <<locked>> | 98% | 58,653 psi | 90% | 2900 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,144 psi | 86% | 2848 fps | 98.9% |
| IMR 4831 | <<locked>> | 98% | 56,898 psi | 88% | 2904 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,593 psi | 86% | 2871 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 58,291 psi | 90% | 2844 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,724 psi | 86% | 2815 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 58,508 psi | 90% | 2822 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,318 psi | 87% | 2825 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,651 psi | 86% | 2838 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 56,753 psi | 87% | 2877 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,435 psi | 59% | 2589 fps | 96.4% |
| Norma 201 | <<locked>> | 86% | 57,696 psi | 89% | 2835 fps | 100% |
| Norma 202 | <<locked>> | 86% | 58,639 psi | 90% | 2835 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,130 psi | 88% | 2881 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,666 psi | 86% | 2897 fps | 97.5% |
| Norma MRPᴾ | <<locked>> | 100% | 49,574 psi | 76% | 2907 fps | 98.2% |
| Norma URP | <<locked>> | 96% | 55,230 psi | 85% | 2900 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 57,885 psi | 89% | 2907 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 57,928 psi | 89% | 2956 fps | 99.7% |
| Ramshot TAC | <<locked>> | 84% | 58,407 psi | 90% | 2871 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 58,595 psi | 90% | 2890 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,347 psi | 56% | 1781 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,376 psi | 85% | 2838 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,868 psi | 84% | 2907 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 58,726 psi | 90% | 2999 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,173 psi | 86% | 2936 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,390 psi | 85% | 2969 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 58,566 psi | 90% | 2812 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 58,595 psi | 90% | 2838 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 58,131 psi | 89% | 2881 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 56,202 psi | 86% | 2871 fps | 96.7% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,388 psi | 81% | 2871 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 94% | 57,827 psi | 89% | 2871 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,651 psi | 86% | 2838 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,724 psi | 86% | 2815 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,318 psi | 87% | 2825 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,753 psi | 87% | 2877 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,391 psi | 87% | 2894 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,203 psi | 88% | 2854 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,812 psi | 89% | 2871 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,796 psi | 86% | 2726 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,289 psi | 87% | 2723 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,811 psi | 86% | 2795 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,895 psi | 80% | 2864 fps | 97.2% |
| Somchem S335 | <<locked>> | 86% | 58,421 psi | 90% | 2762 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,782 psi | 87% | 2838 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 58,102 psi | 89% | 2874 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 58,175 psi | 89% | 2864 fps | 96.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,769 psi | 89% | 2949 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,866 psi | 81% | 2844 fps | 98.1% |
| Vihtavuori N130 | <<locked>> | 82% | 58,755 psi | 90% | 2723 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 56,231 psi | 87% | 2707 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 58,581 psi | 90% | 2792 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,796 psi | 86% | 2766 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,144 psi | 86% | 2805 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,769 psi | 89% | 2897 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,542 psi | 70% | 2707 fps | 96.2% |
| Vihtavuori N530 | <<locked>> | 82% | 54,911 psi | 84% | 2789 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,261 psi | 88% | 2808 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,724 psi | 87% | 2900 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,081 psi | 76% | 2844 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,914 psi | 89% | 2871 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,405 psi | 85% | 2841 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,506 psi | 85% | 2913 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,523 psi | 61% | 2802 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 58,073 psi | 89% | 2881 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,661 psi | 76% | 2782 fps | 96.5% |
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 2015 | <<locked>> | 80% | 53,011 psi | 82% | 2687 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,498 psi | 70% | 2615 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,563 psi | 82% | 2779 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,585 psi | 69% | 2612 fps | 96.1% |
| Accurate 3100 | <<locked>> | 92% | 35,085 psi | 54% | 2513 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 43,076 psi | 66% | 2618 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,097 psi | 49% | 2457 fps | 96% |
| ADI AR 2206H | <<locked>> | 80% | 49,139 psi | 76% | 2743 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,597 psi | 64% | 2592 fps | 99% |
| ADI AR 2209 | <<locked>> | 94% | 44,614 psi | 69% | 2726 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,271 psi | 79% | 2743 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,460 psi | 81% | 2713 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,382 psi | 70% | 2795 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,553 psi | 64% | 2615 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,672 psi | 69% | 2684 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,242 psi | 50% | 2477 fps | 96.2% |
| Alliant Reloder-17 | 47.9 gr | 80% | 36,114 psi | 56% | 2602 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,976 psi | 68% | 2717 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 43,859 psi | 67% | 2762 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,992 psi | 43% | 2385 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,895 psi | 52% | 2552 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 88% | 32,227 psi | 50% | 2559 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,805 psi | 75% | 2756 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 41,481 psi | 64% | 2621 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 43,859 psi | 67% | 2762 fps | 95.2% |
| Bofors RP7 | <<locked>> | 84% | 42,134 psi | 65% | 2598 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,721 psi | 81% | 2723 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,734 psi | 78% | 2769 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,221 psi | 65% | 2631 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 39,479 psi | 61% | 2625 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 84% | 42,989 psi | 66% | 2654 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 49,647 psi | 76% | 2753 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,631 psi | 46% | 2375 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,905 psi | 71% | 2730 fps | 100% |
| Hodgdon Superformance | 54.5 gr | 86% | 41,814 psi | 64% | 2703 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,687 psi | 41% | 1555 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,471 psi | 73% | 2700 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,705 psi | 76% | 2733 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,700 psi | 67% | 2625 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,137 psi | 71% | 2651 fps | 97.3% |
| IMR 4350 | <<locked>> | 86% | 39,900 psi | 61% | 2575 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,508 psi | 59% | 2523 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 31,198 psi | 48% | 2418 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 45,818 psi | 70% | 2713 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 51,271 psi | 79% | 2743 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,776 psi | 75% | 2717 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,515 psi | 75% | 2671 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,671 psi | 67% | 2625 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,926 psi | 55% | 2474 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 38,928 psi | 60% | 2559 fps | 95.6% |
| Lovex S071 | <<locked>> | 98% | 35,955 psi | 55% | 2533 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 47,892 psi | 74% | 2687 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,399 psi | 74% | 2687 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,048 psi | 68% | 2671 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 45,382 psi | 70% | 2723 fps | 95.2% |
| Norma MRP | <<locked>> | 94% | 40,147 psi | 62% | 2717 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 32,474 psi | 50% | 2461 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 44,092 psi | 68% | 2690 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 36,042 psi | 55% | 2556 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 51,343 psi | 79% | 2766 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,068 psi | 79% | 2779 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 42% | 1594 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,409 psi | 65% | 2612 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,892 psi | 74% | 2795 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,493 psi | 59% | 2661 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,937 psi | 49% | 2477 fps | 95.6% |
| ReloadSwiss RS 70 | 49.9 gr | 82% | 33,982 psi | 52% | 2539 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 51,793 psi | 80% | 2717 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,426 psi | 70% | 2638 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,001 psi | 60% | 2569 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 49,501 psi | 76% | 2762 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 94% | 42,743 psi | 66% | 2697 fps | 95% |
| Rottweil R 907 | <<locked>> | 84% | 42,134 psi | 65% | 2598 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,926 psi | 55% | 2474 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,776 psi | 75% | 2717 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,671 psi | 67% | 2625 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 38,928 psi | 60% | 2559 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,248 psi | 62% | 2621 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,661 psi | 76% | 2740 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,688 psi | 73% | 2713 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,095 psi | 76% | 2631 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,147 psi | 63% | 2500 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,492 psi | 58% | 2467 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 45,208 psi | 70% | 2749 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 48,762 psi | 75% | 2631 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,632 psi | 76% | 2733 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,653 psi | 61% | 2569 fps | 99.4% |
| Somchem S361 | <<locked>> | 98% | 54,375 psi | 84% | 2808 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 28,935 psi | 45% | 2411 fps | 98.1% |
| Somchem S385 | <<locked>> | 92% | 40,480 psi | 62% | 2621 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 55,259 psi | 85% | 2677 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 49,617 psi | 76% | 2618 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,513 psi | 70% | 2612 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,021 psi | 71% | 2625 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,811 psi | 58% | 2507 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 33,866 psi | 52% | 2464 fps | 96.5% |
| Vihtavuori N165 | <<locked>> | 98% | 42,728 psi | 66% | 2654 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 51,547 psi | 79% | 2743 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,338 psi | 68% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,315 psi | 51% | 2464 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 28,413 psi | 44% | 2402 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,417 psi | 51% | 2444 fps | 98.5% |
| Winchester 748 | <<locked>> | 80% | 51,721 psi | 80% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 39,711 psi | 61% | 2631 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,368 psi | 41% | 2405 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,427 psi | 73% | 2720 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 46,166 psi | 71% | 2720 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 107 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 150gr | Osprey Virtus. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,999 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 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 150.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 150gr | Osprey Virtus 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.