Load Specifications
Bullet:.284 | 145gr | Speer Hot-Cor
Bullet Manufacturer:Speer
Bullet Weight:145 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:1:13.0
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 145gr | Speer Hot-Cor bullet and 105 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 56,579 psi | 87% | 2828 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 58,175 psi | 89% | 2904 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,532 psi | 79% | 2881 fps | 99.2% |
| Accurate 4064 | <<locked>> | 86% | 56,869 psi | 87% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,609 psi | 89% | 2992 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,941 psi | 86% | 2913 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 57,087 psi | 88% | 2917 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 58,755 psi | 90% | 3038 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 58,131 psi | 89% | 2910 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,347 psi | 87% | 3045 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,783 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 58,262 psi | 90% | 2966 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 58,204 psi | 90% | 3048 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 56,057 psi | 86% | 3025 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,711 psi | 89% | 3018 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,314 psi | 79% | 2963 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,443 psi | 75% | 2900 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,308 psi | 65% | 2815 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,767 psi | 86% | 3100 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 56,072 psi | 86% | 2933 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,152 psi | 73% | 2884 fps | 96.2% |
| Bofors RP3 | <<locked>> | 86% | 55,274 psi | 85% | 2910 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,314 psi | 79% | 2963 fps | 97.3% |
| Bofors RP7 | <<locked>> | 92% | 58,088 psi | 89% | 2940 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 58,247 psi | 90% | 2940 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 55,550 psi | 85% | 2923 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 56,289 psi | 87% | 2992 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 90% | 56,217 psi | 86% | 2949 fps | 98.2% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 56,507 psi | 87% | 2972 fps | 96.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 55,317 psi | 85% | 2949 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 82% | 56,550 psi | 87% | 2923 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 58,537 psi | 90% | 2966 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,971 psi | 88% | 2963 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,652 psi | 87% | 3031 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,260 psi | 56% | 1808 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,711 psi | 89% | 2923 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,261 psi | 88% | 2900 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,550 psi | 87% | 2900 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,028 psi | 86% | 2884 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 55,463 psi | 85% | 2920 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,405 psi | 87% | 2917 fps | 99% |
| IMR 4831 | <<locked>> | 96% | 58,059 psi | 89% | 2982 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,941 psi | 86% | 2940 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 58,131 psi | 89% | 2959 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 82% | 58,131 psi | 89% | 2910 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 56,536 psi | 87% | 2887 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 58,175 psi | 89% | 2884 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,666 psi | 87% | 2894 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,188 psi | 86% | 2910 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 57,624 psi | 89% | 2956 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,917 psi | 66% | 2730 fps | 97.7% |
| Norma 201 | <<locked>> | 84% | 58,175 psi | 89% | 2907 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,434 psi | 85% | 2854 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,479 psi | 88% | 2949 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,246 psi | 87% | 2972 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 54,418 psi | 84% | 3048 fps | 99% |
| Norma URP | <<locked>> | 94% | 56,231 psi | 87% | 2976 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 58,247 psi | 90% | 2976 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,969 psi | 85% | 2976 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,657 psi | 69% | 2815 fps | 96.3% |
| Ramshot TAC | <<locked>> | 82% | 58,436 psi | 90% | 2940 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 58,595 psi | 90% | 2953 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,898 psi | 57% | 1850 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,564 psi | 85% | 2907 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,637 psi | 86% | 2982 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,564 psi | 85% | 3015 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,508 psi | 88% | 3015 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 56,057 psi | 86% | 3045 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 55,419 psi | 85% | 2858 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 58,711 psi | 90% | 2953 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,666 psi | 87% | 2946 fps | 96.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 57,145 psi | 88% | 3009 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 92% | 58,088 psi | 89% | 2940 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,188 psi | 86% | 2910 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,536 psi | 87% | 2887 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,666 psi | 87% | 2894 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,624 psi | 89% | 2956 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,869 psi | 87% | 2963 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,276 psi | 88% | 2920 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,928 psi | 89% | 2936 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,724 psi | 86% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,536 psi | 87% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,188 psi | 86% | 2864 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,637 psi | 87% | 3002 fps | 98.2% |
| Somchem S335 | <<locked>> | 84% | 58,668 psi | 90% | 2831 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 57,043 psi | 88% | 2907 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 58,595 psi | 90% | 2946 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 58,726 psi | 90% | 2940 fps | 96.5% |
| Somchem S365 | <<locked>> | 96% | 55,245 psi | 85% | 2976 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,740 psi | 89% | 2982 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 82% | 56,173 psi | 86% | 2772 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,550 psi | 85% | 2815 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,999 psi | 86% | 2831 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,405 psi | 87% | 2871 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 58,494 psi | 90% | 2969 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,777 psi | 77% | 2838 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 86% | 57,580 psi | 89% | 2877 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,638 psi | 89% | 2979 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,128 psi | 83% | 2979 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,882 psi | 84% | 3035 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 58,334 psi | 90% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,289 psi | 87% | 2992 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,584 psi | 67% | 2949 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 58,363 psi | 90% | 2946 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,157 psi | 83% | 2917 fps | 97.5% |
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 2495 | <<locked>> | 80% | 49,763 psi | 77% | 2736 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,703 psi | 73% | 2730 fps | 97% |
| Accurate 3100 | <<locked>> | 88% | 34,229 psi | 53% | 2539 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 47,152 psi | 73% | 2740 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,694 psi | 55% | 2592 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 52,634 psi | 81% | 2861 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,614 psi | 69% | 2710 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 45,281 psi | 70% | 2802 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,694 psi | 84% | 2861 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,023 psi | 75% | 2923 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,078 psi | 69% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,138 psi | 74% | 2805 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,027 psi | 54% | 2602 fps | 97.4% |
| Alliant Reloder-17 | 51.8 gr | 80% | 39,523 psi | 61% | 2730 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,744 psi | 69% | 2792 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,904 psi | 69% | 2841 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,253 psi | 42% | 2405 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,954 psi | 54% | 2635 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 86% | 33,489 psi | 52% | 2641 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,228 psi | 80% | 2874 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 44,063 psi | 68% | 2822 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 45,208 psi | 70% | 2746 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,904 psi | 69% | 2841 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 40,074 psi | 62% | 2615 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 54,534 psi | 84% | 2887 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,788 psi | 70% | 2756 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 37,739 psi | 58% | 2638 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 82% | 43,497 psi | 67% | 2720 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 52,692 psi | 81% | 2910 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 51,561 psi | 79% | 2890 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 53,200 psi | 82% | 2871 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,561 psi | 50% | 2497 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,763 psi | 77% | 2851 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,334 psi | 61% | 2703 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,992 psi | 42% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,792 psi | 78% | 2818 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,650 psi | 83% | 2848 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,891 psi | 72% | 2743 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,342 psi | 76% | 2776 fps | 98.1% |
| IMR 4350 | <<locked>> | 84% | 40,596 psi | 62% | 2648 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,379 psi | 64% | 2644 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 34,447 psi | 53% | 2546 fps | 97% |
| IMR 4895 | <<locked>> | 80% | 49,400 psi | 76% | 2835 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,169 psi | 79% | 2844 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 54,694 psi | 84% | 2861 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,823 psi | 81% | 2835 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,517 psi | 79% | 2785 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,079 psi | 72% | 2743 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,928 psi | 60% | 2595 fps | 96.9% |
| Lovex S070 | <<locked>> | 80% | 37,086 psi | 57% | 2569 fps | 95.1% |
| Lovex S071 | <<locked>> | 94% | 35,389 psi | 54% | 2566 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 51,401 psi | 79% | 2805 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,083 psi | 80% | 2805 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,514 psi | 73% | 2792 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,934 psi | 71% | 2795 fps | 95.6% |
| Norma MRP | <<locked>> | 90% | 38,638 psi | 59% | 2736 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 35,491 psi | 55% | 2585 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 47,645 psi | 73% | 2812 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,970 psi | 57% | 2631 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 98% | 41,524 psi | 64% | 2749 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 54,549 psi | 84% | 2881 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 54,868 psi | 84% | 2900 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,630 psi | 43% | 1657 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,818 psi | 70% | 2740 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,880 psi | 80% | 2923 fps | 100% |
| ReloadSwiss RS 60 | 51.8 gr | 80% | 41,989 psi | 65% | 2789 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,273 psi | 54% | 2605 fps | 96.9% |
| ReloadSwiss RS 70 | 52.6 gr | 80% | 34,592 psi | 53% | 2608 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 48,965 psi | 75% | 2759 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,482 psi | 65% | 2690 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 49,980 psi | 77% | 2835 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 92% | 43,845 psi | 67% | 2776 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 40,074 psi | 62% | 2615 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,928 psi | 60% | 2595 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,823 psi | 81% | 2835 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,079 psi | 72% | 2743 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,086 psi | 57% | 2569 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,656 psi | 67% | 2743 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,592 psi | 82% | 2864 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,053 psi | 79% | 2831 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,301 psi | 80% | 2740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,106 psi | 68% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,145 psi | 59% | 2536 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,424 psi | 67% | 2769 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 52,025 psi | 80% | 2740 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,098 psi | 82% | 2848 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,960 psi | 66% | 2690 fps | 99.8% |
| Somchem S361 | <<locked>> | 96% | 54,969 psi | 85% | 2884 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 32,053 psi | 49% | 2543 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 41,698 psi | 64% | 2700 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 52,794 psi | 81% | 2723 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,110 psi | 76% | 2723 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,240 psi | 76% | 2736 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,930 psi | 63% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,028 psi | 57% | 2589 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 94% | 40,857 psi | 63% | 2674 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 47,776 psi | 74% | 2730 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,564 psi | 56% | 2592 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 82% | 29,834 psi | 46% | 2480 fps | 95.8% |
| Vihtavuori N560 | <<locked>> | 98% | 51,242 psi | 79% | 2972 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,187 psi | 56% | 2559 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 37,739 psi | 58% | 2638 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,628 psi | 39% | 2421 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,097 psi | 79% | 2838 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,888 psi | 68% | 2740 fps | 95.1% |
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 | 145gr | Speer Hot-Cor. Alliant Reloder-26 delivers the highest muzzle velocity at 3,100 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,100 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 145.0 gr projectile in 0.284" calls for a 1:13.0 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 7 mm Rem. SA Ultra Mag. with the .284 | 145gr | Speer Hot-Cor 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.