Load Specifications
Bullet Manufacturer:Lehigh Defense
Bullet Weight:142 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:1:9.5
Load data in caliber 7 mm Rem. SA Ultra Mag. with .284 | 142gr | Lehigh Defense Controlled Chaos 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 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% | 56,507 psi | 87% | 2808 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,912 psi | 86% | 2838 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,435 psi | 88% | 2907 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 58,001 psi | 89% | 2900 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,601 psi | 72% | 2808 fps | 97.9% |
| Accurate 4064 | <<locked>> | 88% | 55,927 psi | 86% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 56,347 psi | 87% | 2986 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 55,564 psi | 85% | 2917 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,797 psi | 87% | 2923 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,027 psi | 83% | 2963 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,914 psi | 89% | 2917 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,840 psi | 86% | 2835 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,840 psi | 86% | 3048 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 57,276 psi | 88% | 2946 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,798 psi | 89% | 2969 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 57,116 psi | 88% | 3041 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 58,653 psi | 90% | 3077 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,026 psi | 82% | 2949 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,106 psi | 68% | 2838 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,638 psi | 59% | 2733 fps | 96.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,893 psi | 77% | 3018 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,434 psi | 85% | 2933 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 58,146 psi | 89% | 2963 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 57,580 psi | 89% | 2936 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,811 psi | 86% | 2844 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,827 psi | 89% | 2949 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,172 psi | 85% | 2927 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 55,274 psi | 85% | 2986 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 92% | 55,564 psi | 85% | 2943 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 56,202 psi | 86% | 2930 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,145 psi | 88% | 2963 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,115 psi | 86% | 2966 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,608 psi | 86% | 3022 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,955 psi | 55% | 1795 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 57,319 psi | 88% | 2930 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,739 psi | 87% | 2907 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,420 psi | 87% | 2907 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,869 psi | 86% | 2884 fps | 98.6% |
| IMR 4350 | <<locked>> | 98% | 58,378 psi | 90% | 2969 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,796 psi | 86% | 2910 fps | 98.5% |
| IMR 4831 | <<locked>> | 98% | 56,739 psi | 87% | 2976 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,564 psi | 85% | 2946 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 57,914 psi | 89% | 2917 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,767 psi | 86% | 2894 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 58,131 psi | 89% | 2890 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,405 psi | 87% | 2900 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,767 psi | 86% | 2910 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 56,753 psi | 87% | 2946 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,769 psi | 60% | 2654 fps | 95.9% |
| Norma 201 | <<locked>> | 86% | 57,899 psi | 89% | 2913 fps | 100% |
| Norma 202 | <<locked>> | 86% | 58,668 psi | 90% | 2910 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,000 psi | 88% | 2956 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,303 psi | 85% | 2963 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 49,487 psi | 76% | 2969 fps | 97.6% |
| Norma URP | <<locked>> | 96% | 55,100 psi | 85% | 2972 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 57,696 psi | 89% | 2979 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 57,508 psi | 88% | 3025 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 58,450 psi | 90% | 2946 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 58,305 psi | 90% | 2959 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,579 psi | 56% | 1841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 58,798 psi | 90% | 2959 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 58,566 psi | 90% | 3038 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 58,320 psi | 90% | 3071 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,173 psi | 86% | 3009 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,897 psi | 84% | 3035 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 58,784 psi | 90% | 2890 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 58,421 psi | 90% | 2910 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 58,001 psi | 89% | 2953 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,869 psi | 86% | 2933 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,069 psi | 80% | 2933 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 94% | 57,580 psi | 89% | 2936 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,767 psi | 86% | 2910 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,767 psi | 86% | 2894 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,405 psi | 87% | 2900 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,753 psi | 87% | 2946 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,941 psi | 86% | 2963 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,043 psi | 88% | 2923 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,580 psi | 89% | 2943 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,666 psi | 86% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,231 psi | 87% | 2795 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,854 psi | 86% | 2864 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,576 psi | 79% | 2930 fps | 96.7% |
| Somchem S335 | <<locked>> | 86% | 58,494 psi | 90% | 2838 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,492 psi | 87% | 2907 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,986 psi | 89% | 2949 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,348 psi | 88% | 3022 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,953 psi | 81% | 2913 fps | 97.7% |
| Vihtavuori N130 | <<locked>> | 82% | 58,682 psi | 90% | 2799 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 56,043 psi | 86% | 2779 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 58,668 psi | 90% | 2871 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,738 psi | 86% | 2841 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,927 psi | 86% | 2874 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,537 psi | 89% | 2966 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 58,740 psi | 90% | 2920 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,377 psi | 88% | 2887 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,492 psi | 87% | 2972 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,023 psi | 75% | 2913 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,740 psi | 89% | 2940 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,245 psi | 85% | 2913 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,274 psi | 85% | 2986 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,494 psi | 61% | 2864 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,798 psi | 89% | 2953 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,647 psi | 76% | 2848 fps | 95.9% |
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% | 53,127 psi | 82% | 2762 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,050 psi | 71% | 2694 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,432 psi | 82% | 2851 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,527 psi | 69% | 2674 fps | 95.5% |
| Accurate 3100 | <<locked>> | 94% | 37,884 psi | 58% | 2638 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 43,584 psi | 67% | 2694 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,401 psi | 50% | 2523 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 49,095 psi | 76% | 2812 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 41,626 psi | 64% | 2657 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 47,529 psi | 73% | 2848 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,169 psi | 79% | 2815 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,373 psi | 81% | 2789 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,092 psi | 69% | 2861 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,655 psi | 64% | 2684 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,686 psi | 69% | 2749 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,430 psi | 50% | 2536 fps | 95.6% |
| Alliant Reloder-17 | 48.8 gr | 80% | 36,303 psi | 56% | 2667 fps | 98.7% |
| Alliant Reloder-19 | <<locked>> | 96% | 46,746 psi | 72% | 2835 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,369 psi | 44% | 2448 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,405 psi | 56% | 2674 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,824 psi | 54% | 2687 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,501 psi | 75% | 2818 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 41,713 psi | 64% | 2694 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 42,177 psi | 65% | 2664 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,649 psi | 81% | 2795 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,502 psi | 78% | 2838 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,279 psi | 65% | 2697 fps | 98% |
| Hodgdon H414 | <<locked>> | 84% | 39,552 psi | 61% | 2690 fps | 95% |
| Hodgdon H4350 | <<locked>> | 86% | 45,701 psi | 70% | 2772 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 49,574 psi | 76% | 2822 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,878 psi | 46% | 2438 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,977 psi | 71% | 2802 fps | 100% |
| Hodgdon Superformance | 55.4 gr | 86% | 41,655 psi | 64% | 2759 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,861 psi | 41% | 1608 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,616 psi | 73% | 2776 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 49,690 psi | 76% | 2808 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,743 psi | 67% | 2694 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,311 psi | 71% | 2720 fps | 96.9% |
| IMR 4350 | <<locked>> | 88% | 42,670 psi | 66% | 2697 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 82% | 41,133 psi | 63% | 2644 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 31,430 psi | 48% | 2484 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 45,803 psi | 70% | 2782 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 51,169 psi | 79% | 2815 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,776 psi | 75% | 2789 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,501 psi | 75% | 2740 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 43,830 psi | 67% | 2697 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 36,216 psi | 56% | 2539 fps | 95.4% |
| Lovex S070 | <<locked>> | 84% | 39,030 psi | 60% | 2621 fps | 95.1% |
| Lovex S071 | <<locked>> | 98% | 36,361 psi | 56% | 2605 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 48,080 psi | 74% | 2759 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,385 psi | 74% | 2759 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,048 psi | 68% | 2740 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 48,312 psi | 74% | 2844 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 40,190 psi | 62% | 2779 fps | 95% |
| Norma URP | <<locked>> | 80% | 32,634 psi | 50% | 2526 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 43,888 psi | 68% | 2753 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 38,667 psi | 59% | 2677 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 51,010 psi | 78% | 2828 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,995 psi | 78% | 2848 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,282 psi | 42% | 1644 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,583 psi | 66% | 2680 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,645 psi | 73% | 2864 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,638 psi | 59% | 2733 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 34,534 psi | 53% | 2598 fps | 96% |
| ReloadSwiss RS 70 | 52 gr | 84% | 36,463 psi | 56% | 2664 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 52,185 psi | 80% | 2795 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,701 psi | 70% | 2710 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,262 psi | 60% | 2638 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 98% | 52,518 psi | 81% | 2881 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 96% | 45,600 psi | 70% | 2818 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 84% | 42,177 psi | 65% | 2664 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,216 psi | 56% | 2539 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,776 psi | 75% | 2789 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,830 psi | 67% | 2697 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 39,030 psi | 60% | 2621 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,205 psi | 62% | 2687 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,777 psi | 77% | 2808 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,514 psi | 73% | 2779 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,240 psi | 76% | 2703 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,278 psi | 64% | 2569 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,248 psi | 62% | 2585 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 45,165 psi | 69% | 2812 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 48,878 psi | 75% | 2703 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,356 psi | 76% | 2799 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 39,871 psi | 61% | 2641 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 29,356 psi | 45% | 2480 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 43,279 psi | 67% | 2743 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 55,259 psi | 85% | 2756 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 49,647 psi | 76% | 2690 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,687 psi | 70% | 2687 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,992 psi | 71% | 2697 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,956 psi | 58% | 2572 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 33,982 psi | 52% | 2526 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 51,401 psi | 79% | 2812 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,338 psi | 68% | 2687 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,489 psi | 52% | 2526 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 86% | 30,777 psi | 47% | 2526 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,460 psi | 51% | 2500 fps | 98% |
| Winchester 748 | <<locked>> | 80% | 51,735 psi | 80% | 2861 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 39,769 psi | 61% | 2694 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,471 psi | 44% | 2530 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,224 psi | 73% | 2785 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 98% | 46,311 psi | 71% | 2789 fps | 95% |
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 103 powders for 7 mm Rem. SA Ultra Mag. loaded with the .284 | 142gr | Lehigh Defense Controlled Chaos. Alliant Reloder-17 delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,795 fps to 3,077 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 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 142.0 gr projectile in 0.284" calls for a 1:9.5 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 | 142gr | Lehigh Defense Controlled Chaos 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.