Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:150 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7 mm Backcountry load data
Case Length (l3):2.417"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:73 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:20"
Max. allowed Pressure:79,916 psi
Recommended Twist Rate:1:10.5
Load data in caliber 7 mm Backcountry with .284 | 150gr | Sierra Tipped GameKing bullet and 126 powders. The key underlying parameters are shown in the table above.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 69,096 psi | 86% | 2782 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 68,327 psi | 85% | 2825 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 70,184 psi | 88% | 2822 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 71,997 psi | 90% | 2897 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 72,171 psi | 90% | 2910 fps | 99.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,243 psi | 67% | 2723 fps | 98.6% |
| Accurate 4064 | <<locked>> | 92% | 70,097 psi | 88% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 67,834 psi | 85% | 2943 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 58,030 psi | 73% | 2907 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 82% | 69,198 psi | 87% | 2762 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 69,807 psi | 87% | 2799 fps | 100% |
| ADI APS 450 | <<locked>> | 92% | 70,822 psi | 89% | 2267 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 68,922 psi | 86% | 2910 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 69,966 psi | 88% | 2910 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 60,089 psi | 75% | 2867 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 71,446 psi | 89% | 2904 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 69,865 psi | 87% | 2815 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 70,677 psi | 88% | 2969 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 71,533 psi | 90% | 3054 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 71,011 psi | 89% | 2930 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 72,185 psi | 90% | 2825 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 71,547 psi | 90% | 2959 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 67,689 psi | 85% | 2989 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 70,982 psi | 89% | 3025 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 59,422 psi | 74% | 2854 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,721 psi | 66% | 2792 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,748 psi | 62% | 2736 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,366 psi | 54% | 2644 fps | 97.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 57,551 psi | 72% | 2930 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 69,502 psi | 87% | 2762 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 69,763 psi | 87% | 2936 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 68,559 psi | 86% | 2904 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,721 psi | 66% | 2792 fps | 96.3% |
| Bofors RP7 | <<locked>> | 98% | 71,489 psi | 89% | 2943 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 88% | 72,113 psi | 90% | 2874 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 68,124 psi | 85% | 2887 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 71,605 psi | 90% | 3005 fps | 100% |
| Hodgdon H322 | <<locked>> | 84% | 72,301 psi | 90% | 2881 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 69,575 psi | 87% | 2864 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 69,299 psi | 87% | 2927 fps | 100% |
| Hodgdon H414 | <<locked>> | 98% | 70,140 psi | 88% | 2995 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 96% | 69,241 psi | 87% | 2949 fps | 99% |
| Hodgdon H4895 | <<locked>> | 88% | 69,720 psi | 87% | 2920 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 63,962 psi | 80% | 2861 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 71,025 psi | 89% | 2959 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 67,370 psi | 84% | 2989 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,274 psi | 45% | 1713 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 70,808 psi | 89% | 2917 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 70,590 psi | 88% | 2887 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 69,517 psi | 87% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 68,574 psi | 86% | 2887 fps | 99.6% |
| IMR 4198 | <<locked>> | 84% | 70,822 psi | 89% | 2776 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 68,269 psi | 85% | 2917 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 96% | 69,024 psi | 86% | 2913 fps | 99.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 67,747 psi | 85% | 2927 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 69,140 psi | 87% | 2936 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 71,446 psi | 89% | 2904 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 68,226 psi | 85% | 2841 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 70,242 psi | 88% | 2884 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 70,982 psi | 89% | 2877 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 69,560 psi | 87% | 2884 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 68,922 psi | 86% | 2907 fps | 100% |
| Lovex S070ᴾ | <<locked>> | 100% | 70,938 psi | 89% | 2953 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,121 psi | 55% | 2569 fps | 96.7% |
| Norma 201 | <<locked>> | 90% | 71,330 psi | 89% | 2897 fps | 100% |
| Norma 202 | <<locked>> | 90% | 72,301 psi | 90% | 2890 fps | 100% |
| Norma 203B | <<locked>> | 92% | 70,677 psi | 88% | 2943 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 70,822 psi | 89% | 2986 fps | 98.8% |
| Norma MRPᴾ | <<locked>> | 100% | 55,999 psi | 70% | 2877 fps | 98.3% |
| Norma URPᴾ | <<locked>> | 100% | 69,894 psi | 87% | 2972 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 68,269 psi | 85% | 2927 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 68,879 psi | 86% | 2979 fps | 99.9% |
| Ramshot TAC | <<locked>> | 88% | 72,301 psi | 90% | 2946 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 86% | 68,269 psi | 85% | 2900 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 68,052 psi | 85% | 2861 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,941 psi | 46% | 1752 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 70,517 psi | 88% | 2877 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 68,864 psi | 86% | 2910 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 69,488 psi | 87% | 2986 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 70,416 psi | 88% | 3015 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 67,689 psi | 85% | 2963 fps | 100% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 71,315 psi | 89% | 3058 fps | 100% |
| Rottweil R 901 | <<locked>> | 88% | 71,779 psi | 90% | 2867 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 71,895 psi | 90% | 2894 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 68,400 psi | 86% | 2897 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 61,989 psi | 78% | 2841 fps | 96.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 58,595 psi | 73% | 2841 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 98% | 71,489 psi | 89% | 2943 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 68,922 psi | 86% | 2907 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 88% | 70,242 psi | 88% | 2884 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 69,560 psi | 87% | 2884 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 70,938 psi | 89% | 2953 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 70,401 psi | 88% | 2861 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 68,922 psi | 86% | 2510 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 70,459 psi | 88% | 2956 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 69,256 psi | 87% | 2812 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 71,649 psi | 90% | 2930 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 71,533 psi | 90% | 2933 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 72,200 psi | 90% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 68,908 psi | 86% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 69,865 psi | 87% | 2874 fps | 99.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 58,088 psi | 73% | 2838 fps | 97.4% |
| Somchem S321 | <<locked>> | 84% | 69,328 psi | 87% | 2887 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 71,431 psi | 89% | 2818 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 71,098 psi | 89% | 2910 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 72,069 psi | 90% | 2936 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 64,469 psi | 81% | 2841 fps | 96.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 65,050 psi | 81% | 2920 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 59,161 psi | 74% | 2818 fps | 98.3% |
| Vihtavuori N130 | <<locked>> | 86% | 71,170 psi | 89% | 2772 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 68,168 psi | 85% | 2753 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 68,298 psi | 85% | 2802 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 68,806 psi | 86% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 69,763 psi | 87% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 68,153 psi | 85% | 2917 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,329 psi | 64% | 2684 fps | 96.4% |
| Vihtavuori N530 | <<locked>> | 86% | 68,153 psi | 85% | 2858 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 71,199 psi | 89% | 2867 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 71,518 psi | 89% | 2972 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,637 psi | 70% | 2815 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 68,734 psi | 86% | 2887 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 69,401 psi | 87% | 2907 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 70,517 psi | 88% | 2999 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,092 psi | 56% | 2782 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 67,907 psi | 85% | 2894 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,840 psi | 70% | 2759 fps | 96.7% |
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 57,783 psi | 72% | 2651 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 63,962 psi | 80% | 2776 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 51,082 psi | 64% | 2589 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 58,885 psi | 74% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,805 psi | 61% | 2582 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 40,379 psi | 51% | 2497 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 48,370 psi | 61% | 2589 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,593 psi | 46% | 2431 fps | 96.2% |
| Accurate High Country | <<locked>> | 98% | 54,056 psi | 68% | 2841 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 65,137 psi | 82% | 2717 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 65,702 psi | 82% | 2753 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 58,450 psi | 73% | 2110 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 53,563 psi | 67% | 2700 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,629 psi | 57% | 2556 fps | 99% |
| ADI AR 2209 | <<locked>> | 94% | 49,327 psi | 62% | 2690 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 55,608 psi | 70% | 2703 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 57,595 psi | 72% | 2677 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 66,021 psi | 83% | 2913 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,401 psi | 63% | 2756 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,977 psi | 58% | 2579 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 64,179 psi | 80% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,066 psi | 61% | 2641 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,940 psi | 45% | 2444 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,640 psi | 51% | 2569 fps | 99.1% |
| Alliant Reloder-19 | <<locked>> | 94% | 48,979 psi | 61% | 2684 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 49,414 psi | 62% | 2733 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 84% | 29,849 psi | 37% | 2300 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 96% | 38,290 psi | 48% | 2530 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 88% | 36,912 psi | 46% | 2533 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 65,369 psi | 82% | 2717 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,505 psi | 67% | 2717 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 46,383 psi | 58% | 2589 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 49,414 psi | 62% | 2733 fps | 95.4% |
| Bofors RP7 | <<locked>> | 84% | 46,195 psi | 58% | 2562 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 56,913 psi | 71% | 2684 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 55,912 psi | 70% | 2733 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 62,323 psi | 78% | 2890 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 63,860 psi | 80% | 2785 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 65,195 psi | 82% | 2812 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 46,702 psi | 58% | 2595 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 44,309 psi | 55% | 2595 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 84% | 47,456 psi | 59% | 2618 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 54,143 psi | 68% | 2710 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,315 psi | 42% | 2343 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,821 psi | 64% | 2690 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 46,630 psi | 58% | 2671 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,180 psi | 34% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,909 psi | 65% | 2661 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 54,984 psi | 69% | 2697 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,964 psi | 60% | 2589 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,154 psi | 63% | 2615 fps | 97.3% |
| IMR 4198 | <<locked>> | 80% | 63,251 psi | 79% | 2690 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 44,092 psi | 55% | 2543 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,337 psi | 53% | 2490 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 35,288 psi | 44% | 2388 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 50,343 psi | 63% | 2671 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 55,608 psi | 70% | 2703 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 63,889 psi | 80% | 2792 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 53,882 psi | 67% | 2680 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,591 psi | 66% | 2635 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 48,196 psi | 60% | 2589 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,856 psi | 50% | 2441 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 43,062 psi | 54% | 2523 fps | 95.6% |
| Lovex S071 | <<locked>> | 96% | 38,812 psi | 49% | 2464 fps | 95% |
| Norma 201 | <<locked>> | 80% | 52,562 psi | 66% | 2654 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,997 psi | 66% | 2648 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,428 psi | 61% | 2628 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 50,357 psi | 63% | 2690 fps | 95.3% |
| Norma MRP | <<locked>> | 94% | 45,556 psi | 57% | 2690 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 36,535 psi | 46% | 2428 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 48,907 psi | 61% | 2654 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 40,524 psi | 51% | 2526 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 55,796 psi | 70% | 2723 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 55,927 psi | 70% | 2740 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 59,959 psi | 75% | 2759 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,630 psi | 35% | 1565 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 62,163 psi | 78% | 2776 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,702 psi | 58% | 2579 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,026 psi | 66% | 2759 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,221 psi | 54% | 2628 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,405 psi | 46% | 2444 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 38,043 psi | 48% | 2507 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 56,666 psi | 71% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 50,067 psi | 63% | 2605 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,613 psi | 55% | 2536 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 54,621 psi | 68% | 2733 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 94% | 47,950 psi | 60% | 2667 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 84% | 46,195 psi | 58% | 2562 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,856 psi | 50% | 2441 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 53,882 psi | 67% | 2680 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 48,196 psi | 60% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 43,062 psi | 54% | 2523 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 65,876 psi | 82% | 2808 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 65,644 psi | 82% | 2477 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,585 psi | 56% | 2582 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 65,369 psi | 82% | 2769 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 54,636 psi | 68% | 2703 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,996 psi | 65% | 2671 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,345 psi | 67% | 2595 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,092 psi | 56% | 2464 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,597 psi | 52% | 2441 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 50,705 psi | 63% | 2717 fps | 95.8% |
| Somchem S321 | <<locked>> | 80% | 60,916 psi | 76% | 2785 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 53,098 psi | 66% | 2595 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 54,418 psi | 68% | 2697 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,048 psi | 55% | 2536 fps | 99.4% |
| Somchem S361 | <<locked>> | 98% | 60,307 psi | 75% | 2785 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 33,040 psi | 41% | 2385 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 45,513 psi | 57% | 2595 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 59,683 psi | 75% | 2644 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 53,896 psi | 67% | 2582 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,285 psi | 63% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,372 psi | 63% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,974 psi | 53% | 2470 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 37,840 psi | 47% | 2431 fps | 96.5% |
| Vihtavuori N165 | <<locked>> | 98% | 47,863 psi | 60% | 2625 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 56,217 psi | 70% | 2703 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 48,646 psi | 61% | 2579 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,391 psi | 47% | 2431 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 32,996 psi | 41% | 2379 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,115 psi | 46% | 2408 fps | 98.5% |
| Winchester 748 | <<locked>> | 80% | 56,797 psi | 71% | 2746 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 44,309 psi | 55% | 2595 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 88% | 30,023 psi | 38% | 2385 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,112 psi | 65% | 2680 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 51,909 psi | 65% | 2700 fps | 95.8% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 126 powders for 7 mm Backcountry loaded with the .284 | 150gr | Sierra Tipped GameKing. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,058 fps; across all powders the maximum-charge window runs from 1,713 fps to 3,058 fps. Accurate 3100 gives the best case fill at 100 %, and 126 of the 126 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (551 MPa), the top charges use 45–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.