Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 145gr | Peregrine Glider GRM 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 60, 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 2015 | <<locked>> | 84% | 58,320 psi | 90% | 2802 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,014 psi | 88% | 2822 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,201 psi | 85% | 2844 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,362 psi | 87% | 2844 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,469 psi | 68% | 2743 fps | 97.6% |
| Accurate 4064 | <<locked>> | 90% | 57,174 psi | 88% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,769 psi | 89% | 2976 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,667 psi | 89% | 2917 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 58,610 psi | 90% | 2917 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,431 psi | 81% | 2904 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,318 psi | 87% | 2861 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,856 psi | 89% | 2831 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,754 psi | 89% | 3045 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,390 psi | 85% | 2887 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,840 psi | 86% | 2910 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,303 psi | 85% | 2982 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,782 psi | 87% | 3018 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,329 psi | 79% | 2890 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,047 psi | 65% | 2769 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,659 psi | 73% | 2949 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,798 psi | 89% | 2936 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 56,043 psi | 86% | 2904 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,883 psi | 86% | 2877 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,914 psi | 89% | 2841 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,941 psi | 86% | 2890 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 58,508 psi | 90% | 3002 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,797 psi | 87% | 2920 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 96% | 56,855 psi | 87% | 2979 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 94% | 57,464 psi | 88% | 2940 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 86% | 58,291 psi | 90% | 2927 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,143 psi | 85% | 2904 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 58,131 psi | 89% | 2959 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,682 psi | 89% | 3022 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,766 psi | 55% | 1765 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,840 psi | 86% | 2874 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 58,465 psi | 90% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 58,073 psi | 89% | 2897 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,943 psi | 89% | 2884 fps | 98.9% |
| IMR 4350 | <<locked>> | 98% | 56,347 psi | 87% | 2907 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,711 psi | 89% | 2907 fps | 98.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 58,349 psi | 90% | 2966 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 57,305 psi | 88% | 2940 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,318 psi | 87% | 2861 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,421 psi | 88% | 2884 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,666 psi | 87% | 2838 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,827 psi | 89% | 2890 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,159 psi | 88% | 2900 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 58,247 psi | 90% | 2940 fps | 99.1% |
| Norma 201 | <<locked>> | 86% | 56,043 psi | 86% | 2854 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,927 psi | 88% | 2858 fps | 100% |
| Norma 203B | <<locked>> | 90% | 58,581 psi | 90% | 2946 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,580 psi | 89% | 2966 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 47,253 psi | 73% | 2900 fps | 97.2% |
| Norma URP | <<locked>> | 98% | 56,623 psi | 87% | 2963 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,738 psi | 86% | 2923 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,709 psi | 86% | 2966 fps | 99.3% |
| Ramshot TAC | <<locked>> | 84% | 56,521 psi | 87% | 2884 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,550 psi | 87% | 2904 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,058 psi | 88% | 2864 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,085 psi | 56% | 1804 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 57,217 psi | 88% | 2904 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,536 psi | 87% | 2979 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,362 psi | 87% | 3012 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,827 psi | 89% | 3002 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,188 psi | 88% | 3038 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 56,579 psi | 87% | 2828 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,565 psi | 87% | 2854 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,912 psi | 86% | 2894 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,215 psi | 83% | 2877 fps | 95.7% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,951 psi | 77% | 2871 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 55,883 psi | 86% | 2877 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,159 psi | 88% | 2900 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,421 psi | 88% | 2884 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,827 psi | 89% | 2890 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 58,247 psi | 90% | 2940 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,740 psi | 89% | 2956 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,216 psi | 85% | 2864 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,854 psi | 86% | 2884 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,464 psi | 88% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,957 psi | 89% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,493 psi | 88% | 2858 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,472 psi | 76% | 2864 fps | 96.3% |
| Somchem S321 | <<locked>> | 82% | 57,624 psi | 89% | 2894 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,826 psi | 87% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,766 psi | 84% | 2851 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,985 psi | 86% | 2890 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,230 psi | 85% | 2966 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,807 psi | 78% | 2851 fps | 97.4% |
| Vihtavuori N130 | <<locked>> | 82% | 57,159 psi | 88% | 2746 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,827 psi | 89% | 2769 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,710 psi | 87% | 2815 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,305 psi | 88% | 2831 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,653 psi | 89% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,535 psi | 85% | 2907 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,782 psi | 87% | 2858 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,608 psi | 86% | 2831 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 58,450 psi | 90% | 2969 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,862 psi | 72% | 2851 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,579 psi | 86% | 2881 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,101 psi | 88% | 2910 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 57,203 psi | 88% | 2982 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,681 psi | 58% | 2792 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,028 psi | 86% | 2894 fps | 100% |
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% | 51,329 psi | 79% | 2707 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,772 psi | 67% | 2635 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,503 psi | 79% | 2792 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,960 psi | 66% | 2615 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 35,940 psi | 55% | 2572 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,452 psi | 64% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,880 psi | 51% | 2516 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 47,587 psi | 73% | 2759 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,263 psi | 62% | 2602 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 48,892 psi | 75% | 2841 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,763 psi | 77% | 2759 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,604 psi | 78% | 2736 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,555 psi | 67% | 2799 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,089 psi | 62% | 2625 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,163 psi | 66% | 2694 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,111 psi | 48% | 2477 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,795 psi | 54% | 2605 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,935 psi | 74% | 2831 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,703 psi | 44% | 2438 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,054 psi | 51% | 2615 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,978 psi | 72% | 2766 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 39,958 psi | 61% | 2635 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 43,453 psi | 67% | 2664 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,285 psi | 79% | 2746 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,776 psi | 75% | 2782 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 54,288 psi | 84% | 2940 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,524 psi | 62% | 2635 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 40,553 psi | 62% | 2687 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 44,266 psi | 68% | 2713 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 48,095 psi | 74% | 2769 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,485 psi | 44% | 2375 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,295 psi | 68% | 2743 fps | 99.9% |
| Hodgdon Superformance | 55.2 gr | 88% | 43,062 psi | 66% | 2762 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,643 psi | 41% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,021 psi | 71% | 2717 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 47,935 psi | 74% | 2749 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,308 psi | 65% | 2638 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,817 psi | 69% | 2664 fps | 96.5% |
| IMR 4350 | <<locked>> | 90% | 43,714 psi | 67% | 2690 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,482 psi | 65% | 2644 fps | 95.8% |
| IMR 4831 | <<locked>> | 82% | 31,981 psi | 49% | 2477 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 44,251 psi | 68% | 2723 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,763 psi | 77% | 2759 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,789 psi | 72% | 2730 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,152 psi | 73% | 2687 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,192 psi | 65% | 2638 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 36,956 psi | 57% | 2533 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 39,798 psi | 61% | 2615 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 46,383 psi | 71% | 2703 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,804 psi | 72% | 2707 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,525 psi | 65% | 2684 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 46,543 psi | 72% | 2779 fps | 95% |
| Norma MRP | <<locked>> | 96% | 41,278 psi | 64% | 2776 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 33,315 psi | 51% | 2523 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 42,279 psi | 65% | 2697 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 37,028 psi | 57% | 2618 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 49,588 psi | 76% | 2776 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,458 psi | 76% | 2792 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,476 psi | 82% | 2812 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,789 psi | 41% | 1611 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,060 psi | 63% | 2621 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,832 psi | 71% | 2802 fps | 99.4% |
| ReloadSwiss RS 60 | 47.5 gr | 80% | 37,101 psi | 57% | 2671 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,721 psi | 50% | 2533 fps | 95.3% |
| ReloadSwiss RS 70 | 50.6 gr | 84% | 34,954 psi | 54% | 2598 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 50,212 psi | 77% | 2736 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,961 psi | 68% | 2651 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,507 psi | 58% | 2575 fps | 99% |
| Rottweil R 904 | <<locked>> | 98% | 50,850 psi | 78% | 2822 fps | 95% |
| Rottweil R 905 | <<locked>> | 98% | 46,746 psi | 72% | 2812 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 86% | 43,453 psi | 67% | 2664 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,956 psi | 57% | 2533 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,789 psi | 72% | 2730 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,192 psi | 65% | 2638 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 39,798 psi | 61% | 2615 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,551 psi | 59% | 2625 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,095 psi | 74% | 2749 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,905 psi | 71% | 2723 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,645 psi | 73% | 2651 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,813 psi | 61% | 2516 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,466 psi | 64% | 2589 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,296 psi | 71% | 2805 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 53,896 psi | 83% | 2838 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,282 psi | 73% | 2648 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,805 psi | 74% | 2743 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,276 psi | 59% | 2582 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 27,760 psi | 43% | 2411 fps | 97.2% |
| Somchem S385 | <<locked>> | 94% | 41,597 psi | 64% | 2684 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 53,708 psi | 83% | 2700 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,124 psi | 74% | 2638 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,888 psi | 68% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,512 psi | 68% | 2641 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,463 psi | 56% | 2516 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 32,547 psi | 50% | 2470 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 49,966 psi | 77% | 2759 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,670 psi | 66% | 2631 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 34,200 psi | 53% | 2523 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 88% | 31,053 psi | 48% | 2513 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,155 psi | 49% | 2444 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 50,009 psi | 77% | 2805 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,799 psi | 63% | 2690 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,992 psi | 42% | 2454 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,629 psi | 70% | 2730 fps | 99.9% |
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 121 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 145gr | Peregrine Glider GRM. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,765 fps to 3,045 fps. Accurate 3100 gives the best case fill at 100 %, and 121 of the 121 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 145.0 gr projectile in 0.284" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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 60, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 145gr | Peregrine Glider GRM they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 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.