Load Specifications
Bullet:.284 | 139gr | Hornady SP
Bullet Manufacturer:Hornady
Bullet Weight:139 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:1:12.0
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 139gr | Hornady SP bullet and 104 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 H414.
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% | 57,957 psi | 89% | 2871 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,812 psi | 89% | 2904 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,840 psi | 86% | 2913 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,849 psi | 75% | 2884 fps | 98.4% |
| Accurate 4064 | <<locked>> | 88% | 57,957 psi | 89% | 2956 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 58,552 psi | 90% | 3061 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 57,246 psi | 88% | 2986 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 58,233 psi | 90% | 2986 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,912 psi | 86% | 3038 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,028 psi | 86% | 2933 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,798 psi | 89% | 2904 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,537 psi | 89% | 3120 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,521 psi | 85% | 2963 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,724 psi | 86% | 2982 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,521 psi | 85% | 3061 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,826 psi | 87% | 3094 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,187 psi | 85% | 3028 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,515 psi | 75% | 2959 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,687 psi | 70% | 2904 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,089 psi | 62% | 2805 fps | 97% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,170 psi | 80% | 3097 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 57,305 psi | 88% | 3005 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 56,173 psi | 86% | 2976 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,515 psi | 75% | 2959 fps | 96.1% |
| Bofors RP7 | <<locked>> | 92% | 55,709 psi | 86% | 2953 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,290 psi | 88% | 2910 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,724 psi | 86% | 2963 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,826 psi | 87% | 2992 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 94% | 57,203 psi | 88% | 3058 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 92% | 57,246 psi | 88% | 3015 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 84% | 57,885 psi | 89% | 2995 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,738 psi | 86% | 2982 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 58,175 psi | 89% | 3035 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 57,580 psi | 89% | 3097 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 55% | 1834 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,332 psi | 85% | 2943 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 58,479 psi | 90% | 2976 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,972 psi | 89% | 2976 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,217 psi | 88% | 2953 fps | 98.8% |
| IMR 4350 | <<locked>> | 96% | 56,521 psi | 87% | 2986 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,551 psi | 89% | 2982 fps | 98.8% |
| IMR 4831 | <<locked>> | 98% | 58,668 psi | 90% | 3048 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 57,145 psi | 88% | 3012 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 56,028 psi | 86% | 2933 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,769 psi | 89% | 2963 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,173 psi | 86% | 2910 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,986 psi | 89% | 2966 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,508 psi | 88% | 2982 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 58,711 psi | 90% | 3022 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,306 psi | 62% | 2723 fps | 96.5% |
| Norma 201 | <<locked>> | 84% | 55,999 psi | 86% | 2930 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,710 psi | 87% | 2927 fps | 100% |
| Norma 203B | <<locked>> | 88% | 58,494 psi | 90% | 3022 fps | 100% |
| Norma 204 | <<locked>> | 96% | 57,319 psi | 88% | 3038 fps | 97.5% |
| Norma MRPᴾ | <<locked>> | 100% | 51,416 psi | 79% | 3048 fps | 98.1% |
| Norma URP | <<locked>> | 96% | 57,159 psi | 88% | 3045 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,622 psi | 86% | 2995 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 55,825 psi | 86% | 3041 fps | 99.3% |
| Ramshot TAC | <<locked>> | 82% | 56,188 psi | 86% | 2956 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,130 psi | 86% | 2972 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,550 psi | 56% | 1877 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,884 psi | 88% | 2976 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,753 psi | 87% | 3054 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,347 psi | 87% | 3084 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 58,334 psi | 90% | 3084 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 57,058 psi | 88% | 3114 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 56,811 psi | 87% | 2907 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,478 psi | 87% | 2927 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,333 psi | 87% | 2972 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 57,856 psi | 89% | 3009 fps | 96.6% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,128 psi | 83% | 3009 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 92% | 55,709 psi | 86% | 2953 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,508 psi | 88% | 2982 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,769 psi | 89% | 2963 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,986 psi | 89% | 2966 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 58,711 psi | 90% | 3022 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,754 psi | 89% | 3031 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 58,682 psi | 90% | 2992 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,782 psi | 86% | 2956 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,956 psi | 88% | 2858 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,798 psi | 89% | 2861 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,377 psi | 88% | 2930 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,621 psi | 82% | 3002 fps | 97.2% |
| Somchem S335 | <<locked>> | 84% | 56,608 psi | 87% | 2858 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 58,378 psi | 90% | 2979 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,347 psi | 87% | 2969 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,883 psi | 86% | 3045 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,839 psi | 84% | 2986 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 84% | 57,377 psi | 88% | 2841 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,826 psi | 87% | 2887 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,348 psi | 88% | 2904 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,798 psi | 89% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,825 psi | 86% | 2986 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,398 psi | 73% | 2844 fps | 96.2% |
| Vihtavuori N530 | <<locked>> | 82% | 56,420 psi | 87% | 2930 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,492 psi | 85% | 2900 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 58,581 psi | 90% | 3045 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,285 psi | 79% | 2989 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,811 psi | 86% | 2956 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,956 psi | 88% | 2982 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,493 psi | 88% | 3061 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,133 psi | 63% | 2943 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,840 psi | 86% | 2966 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,329 psi | 79% | 2917 fps | 96.4% |
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% | 54,375 psi | 84% | 2822 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,529 psi | 73% | 2756 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,905 psi | 71% | 2743 fps | 96% |
| Accurate 3100 | <<locked>> | 92% | 37,072 psi | 57% | 2651 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 44,991 psi | 69% | 2756 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,808 psi | 52% | 2592 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 80% | 50,560 psi | 78% | 2881 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 42,830 psi | 66% | 2723 fps | 99% |
| ADI AR 2209 | <<locked>> | 94% | 46,108 psi | 71% | 2861 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,663 psi | 81% | 2881 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 54,085 psi | 83% | 2854 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,601 psi | 72% | 2930 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,134 psi | 66% | 2749 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,151 psi | 71% | 2818 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,446 psi | 51% | 2602 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,478 psi | 58% | 2733 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,440 psi | 70% | 2851 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 98% | 45,513 psi | 70% | 2900 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,615 psi | 42% | 2454 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 96% | 35,418 psi | 54% | 2687 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,968 psi | 52% | 2697 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,183 psi | 77% | 2890 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 43,134 psi | 66% | 2759 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 45,513 psi | 70% | 2900 fps | 95.2% |
| Bofors RP7 | <<locked>> | 84% | 43,584 psi | 67% | 2733 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,867 psi | 83% | 2861 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,083 psi | 80% | 2907 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,598 psi | 67% | 2762 fps | 98.3% |
| Hodgdon H414 | 52.5 gr | 84% | 40,901 psi | 63% | 2756 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 84% | 44,382 psi | 68% | 2785 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 51,140 psi | 79% | 2890 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,937 psi | 48% | 2500 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,355 psi | 73% | 2864 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 43,149 psi | 66% | 2831 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,832 psi | 41% | 1640 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,791 psi | 75% | 2838 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,271 psi | 79% | 2871 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,020 psi | 69% | 2759 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,326 psi | 73% | 2782 fps | 97.2% |
| IMR 4350 | <<locked>> | 88% | 43,874 psi | 67% | 2759 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,337 psi | 65% | 2707 fps | 95.8% |
| IMR 4831 | <<locked>> | 80% | 32,532 psi | 50% | 2546 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 47,340 psi | 73% | 2851 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 52,663 psi | 81% | 2881 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,285 psi | 77% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,676 psi | 76% | 2805 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 45,136 psi | 69% | 2759 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,275 psi | 57% | 2602 fps | 95.8% |
| Lovex S070 | <<locked>> | 84% | 40,205 psi | 62% | 2684 fps | 95.5% |
| Lovex S071 | <<locked>> | 98% | 37,884 psi | 58% | 2671 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 49,385 psi | 76% | 2825 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,009 psi | 77% | 2828 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,542 psi | 70% | 2808 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 46,702 psi | 72% | 2854 fps | 95.1% |
| Norma MRP | <<locked>> | 94% | 41,872 psi | 64% | 2854 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 33,736 psi | 52% | 2589 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 45,368 psi | 70% | 2822 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 37,565 psi | 58% | 2690 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 52,605 psi | 81% | 2897 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,489 psi | 81% | 2917 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,238 psi | 42% | 1680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,787 psi | 67% | 2746 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,501 psi | 76% | 2936 fps | 99.8% |
| ReloadSwiss RS 60 | 51.1 gr | 80% | 39,827 psi | 61% | 2795 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,402 psi | 51% | 2605 fps | 95.5% |
| ReloadSwiss RS 70 | 53.2 gr | 82% | 35,215 psi | 54% | 2667 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 53,432 psi | 82% | 2854 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,021 psi | 72% | 2776 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,509 psi | 62% | 2700 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 96% | 50,879 psi | 78% | 2897 fps | 95% |
| Rottweil R 905 | <<locked>> | 96% | 47,413 psi | 73% | 2890 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 84% | 43,584 psi | 67% | 2733 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,275 psi | 57% | 2602 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,285 psi | 77% | 2851 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,136 psi | 69% | 2759 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 40,205 psi | 62% | 2684 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,684 psi | 64% | 2756 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,213 psi | 79% | 2874 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,081 psi | 76% | 2851 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,372 psi | 77% | 2762 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,351 psi | 65% | 2625 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 41,539 psi | 64% | 2654 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 46,963 psi | 72% | 2887 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 50,125 psi | 77% | 2762 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,068 psi | 79% | 2867 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,089 psi | 63% | 2703 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 30,371 psi | 47% | 2543 fps | 98.1% |
| Somchem S385 | <<locked>> | 92% | 42,192 psi | 65% | 2756 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 50,850 psi | 78% | 2749 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,963 psi | 72% | 2746 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,268 psi | 73% | 2756 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,131 psi | 60% | 2631 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 35,244 psi | 54% | 2595 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 98% | 44,179 psi | 68% | 2782 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 52,924 psi | 81% | 2877 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,672 psi | 70% | 2749 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,650 psi | 53% | 2592 fps | 96% |
| Vihtavuori N555 | <<locked>> | 84% | 30,052 psi | 46% | 2536 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,679 psi | 53% | 2566 fps | 98.4% |
| Winchester 748 | <<locked>> | 80% | 53,142 psi | 82% | 2927 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 41,133 psi | 63% | 2762 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,746 psi | 43% | 2539 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,791 psi | 75% | 2851 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 47,964 psi | 74% | 2858 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 118 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 139gr | Hornady SP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,120 fps; across all powders the maximum-charge window runs from 1,834 fps to 3,120 fps. Accurate 3100 gives the best case fill at 100 %, and 118 of the 118 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 1:12.0 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 H414 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 139gr | Hornady SP 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.