Load Specifications
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 139gr | Barnes LRX BT bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Winchester 760.
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% | 57,711 psi | 89% | 2858 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,449 psi | 87% | 2881 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 58,508 psi | 90% | 2956 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,666 psi | 86% | 2894 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,714 psi | 67% | 2785 fps | 97.1% |
| Accurate 4064 | <<locked>> | 90% | 56,521 psi | 87% | 2933 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,319 psi | 88% | 3035 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 56,855 psi | 87% | 2969 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,986 psi | 89% | 2969 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,735 psi | 80% | 2953 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,927 psi | 86% | 2920 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,116 psi | 88% | 2887 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,188 psi | 88% | 3100 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 58,218 psi | 90% | 2992 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 58,755 psi | 90% | 3015 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 58,204 psi | 90% | 3091 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,970 psi | 86% | 3071 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,662 psi | 78% | 2936 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,727 psi | 64% | 2822 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,181 psi | 73% | 2995 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,000 psi | 88% | 2989 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,303 psi | 85% | 2956 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,492 psi | 85% | 2933 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,276 psi | 88% | 2897 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,274 psi | 85% | 2946 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,798 psi | 89% | 3058 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,333 psi | 87% | 2976 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 56,463 psi | 87% | 3035 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 94% | 56,579 psi | 87% | 2989 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 86% | 57,450 psi | 88% | 2979 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,433 psi | 84% | 2956 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,667 psi | 89% | 3018 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,927 psi | 88% | 3071 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,636 psi | 55% | 1811 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,376 psi | 85% | 2933 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 58,001 psi | 89% | 2959 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,508 psi | 88% | 2953 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,421 psi | 88% | 2940 fps | 98.6% |
| IMR 4350 | <<locked>> | 98% | 56,014 psi | 86% | 2963 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,276 psi | 88% | 2966 fps | 98.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,856 psi | 89% | 3025 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 56,695 psi | 87% | 2995 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,927 psi | 86% | 2920 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,811 psi | 87% | 2940 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,318 psi | 87% | 2897 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,261 psi | 88% | 2946 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,637 psi | 87% | 2956 fps | 99.3% |
| Lovex S070 | <<locked>> | 98% | 57,957 psi | 89% | 2995 fps | 98.8% |
| Norma 201 | <<locked>> | 86% | 55,608 psi | 86% | 2913 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,130 psi | 86% | 2910 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,914 psi | 89% | 3002 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,695 psi | 87% | 3012 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 46,702 psi | 72% | 2946 fps | 96.7% |
| Norma URP | <<locked>> | 98% | 56,260 psi | 87% | 3022 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,201 psi | 85% | 2979 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 58,784 psi | 90% | 3074 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 56,231 psi | 87% | 2943 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,941 psi | 86% | 2959 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,565 psi | 87% | 2920 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,172 psi | 56% | 1854 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 58,639 psi | 90% | 2943 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,449 psi | 87% | 2953 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,188 psi | 86% | 3038 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,695 psi | 86% | 3068 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,188 psi | 88% | 3058 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,565 psi | 87% | 3091 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,043 psi | 86% | 2887 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,115 psi | 86% | 2910 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,172 psi | 85% | 2946 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,501 psi | 76% | 2920 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 94% | 55,492 psi | 85% | 2933 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,637 psi | 87% | 2956 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,811 psi | 87% | 2940 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,261 psi | 88% | 2946 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,957 psi | 89% | 2995 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,174 psi | 88% | 3012 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 58,668 psi | 90% | 2979 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,579 psi | 86% | 2943 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,869 psi | 87% | 2848 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,464 psi | 88% | 2844 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,869 psi | 87% | 2907 fps | 98.5% |
| Somchem S321 | <<locked>> | 82% | 57,043 psi | 88% | 2949 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,463 psi | 87% | 2844 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 58,131 psi | 89% | 2963 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,347 psi | 85% | 2946 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,331 psi | 84% | 3018 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,299 psi | 77% | 2900 fps | 97% |
| Vihtavuori N130 | <<locked>> | 82% | 56,420 psi | 87% | 2802 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,217 psi | 88% | 2828 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,970 psi | 86% | 2871 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,724 psi | 87% | 2887 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,188 psi | 88% | 2927 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,940 psi | 85% | 2959 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 84% | 56,347 psi | 87% | 2917 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 58,682 psi | 90% | 2936 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,653 psi | 89% | 3018 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,166 psi | 71% | 2897 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,013 psi | 85% | 2933 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,492 psi | 87% | 2966 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,463 psi | 87% | 3035 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,246 psi | 57% | 2831 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,303 psi | 85% | 2946 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% | 50,937 psi | 78% | 2766 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,294 psi | 67% | 2687 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,068 psi | 79% | 2848 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,600 psi | 70% | 2723 fps | 95.5% |
| Accurate 3100 | <<locked>> | 96% | 37,971 psi | 58% | 2667 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 40,973 psi | 63% | 2684 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,358 psi | 50% | 2556 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 47,079 psi | 72% | 2808 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 39,885 psi | 61% | 2651 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 98% | 48,602 psi | 75% | 2894 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,255 psi | 76% | 2815 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,111 psi | 77% | 2795 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,163 psi | 66% | 2851 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,682 psi | 61% | 2674 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,670 psi | 66% | 2743 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,779 psi | 50% | 2575 fps | 95.4% |
| Alliant Reloder-17 | 48.5 gr | 80% | 34,272 psi | 53% | 2644 fps | 97.9% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,616 psi | 73% | 2881 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,369 psi | 44% | 2474 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,143 psi | 54% | 2723 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,543 psi | 72% | 2815 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 39,436 psi | 61% | 2680 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 42,873 psi | 66% | 2707 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,850 psi | 78% | 2802 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,341 psi | 74% | 2838 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,693 psi | 83% | 2995 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 40,234 psi | 62% | 2684 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 88% | 42,917 psi | 66% | 2792 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 88% | 46,572 psi | 72% | 2815 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 47,587 psi | 73% | 2822 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,152 psi | 43% | 2415 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,627 psi | 67% | 2789 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 42,540 psi | 65% | 2805 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,498 psi | 41% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,513 psi | 70% | 2766 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 47,456 psi | 73% | 2808 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,901 psi | 64% | 2687 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,353 psi | 68% | 2710 fps | 96.1% |
| IMR 4350 | <<locked>> | 90% | 43,439 psi | 67% | 2740 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,945 psi | 65% | 2687 fps | 95.2% |
| IMR 4831 | <<locked>> | 84% | 33,837 psi | 52% | 2575 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 43,787 psi | 67% | 2776 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 49,255 psi | 76% | 2815 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,441 psi | 71% | 2782 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,746 psi | 72% | 2740 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 41,785 psi | 64% | 2690 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 36,535 psi | 56% | 2575 fps | 95.2% |
| Lovex S070 | <<locked>> | 88% | 41,945 psi | 65% | 2713 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 45,963 psi | 71% | 2756 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 46,369 psi | 71% | 2759 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,032 psi | 65% | 2730 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 49,356 psi | 76% | 2887 fps | 95.3% |
| Norma MRP | <<locked>> | 98% | 43,569 psi | 67% | 2881 fps | 95.8% |
| Norma URP | <<locked>> | 82% | 32,837 psi | 51% | 2562 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 41,843 psi | 64% | 2746 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 39,131 psi | 60% | 2720 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 49,168 psi | 76% | 2825 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,762 psi | 75% | 2844 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,069 psi | 82% | 2867 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,832 psi | 41% | 1657 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 55,201 psi | 85% | 2897 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,509 psi | 62% | 2667 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,440 psi | 70% | 2854 fps | 99.2% |
| ReloadSwiss RS 60 | 48.5 gr | 80% | 36,521 psi | 56% | 2713 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,650 psi | 53% | 2635 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 37,130 psi | 57% | 2707 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 49,574 psi | 76% | 2789 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,569 psi | 67% | 2703 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,057 psi | 57% | 2621 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 98% | 46,108 psi | 71% | 2858 fps | 95% |
| Rottweil R 907 | <<locked>> | 86% | 42,873 psi | 66% | 2707 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,535 psi | 56% | 2575 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,441 psi | 71% | 2782 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,785 psi | 64% | 2690 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 41,945 psi | 65% | 2713 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,232 psi | 59% | 2677 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,355 psi | 73% | 2795 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,585 psi | 70% | 2776 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,050 psi | 72% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,262 psi | 60% | 2562 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,814 psi | 63% | 2628 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 53,417 psi | 82% | 2897 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,891 psi | 72% | 2703 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,369 psi | 73% | 2795 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 37,855 psi | 58% | 2628 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 27,369 psi | 42% | 2451 fps | 96.5% |
| Somchem S385 | <<locked>> | 96% | 43,816 psi | 67% | 2782 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 53,055 psi | 82% | 2759 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,514 psi | 73% | 2690 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,250 psi | 67% | 2680 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,048 psi | 68% | 2697 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,042 psi | 55% | 2562 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 34,272 psi | 53% | 2566 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 49,429 psi | 76% | 2812 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,409 psi | 65% | 2684 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,852 psi | 52% | 2566 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 88% | 30,632 psi | 47% | 2552 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,850 psi | 49% | 2484 fps | 97.2% |
| Winchester 748 | <<locked>> | 80% | 49,327 psi | 76% | 2858 fps | 100% |
| Winchester 760 | 51.1 gr | 86% | 40,292 psi | 62% | 2736 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,427 psi | 44% | 2552 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,223 psi | 70% | 2782 fps | 99.7% |
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 121 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 139gr | Barnes LRX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,100 fps; across all powders the maximum-charge window runs from 1,811 fps to 3,100 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 139.0 gr projectile in 0.284" calls for a 1:9.5 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. Alliant Reloder-17, ReloadSwiss RS 60, Winchester 760 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 139gr | Barnes LRX BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Alliant Reloder-22 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.