Load Specifications
Bullet Manufacturer:Peregrine
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:1:9.0
Load data in caliber 7 mm Backcountry with .284 | 150gr | Peregrine VLR-4 bullet and 122 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 69,879 psi | 87% | 2789 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 68,661 psi | 86% | 2825 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 69,792 psi | 87% | 2815 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 67,805 psi | 85% | 2844 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 68,139 psi | 85% | 2854 fps | 99% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,675 psi | 61% | 2648 fps | 97.6% |
| Accurate 4064 | <<locked>> | 94% | 69,879 psi | 87% | 2871 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 67,544 psi | 85% | 2936 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 70,401 psi | 88% | 2766 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 71,054 psi | 89% | 2802 fps | 100% |
| ADI APS 450 | <<locked>> | 92% | 70,692 psi | 88% | 2244 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 69,299 psi | 87% | 2907 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 70,488 psi | 88% | 2910 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,391 psi | 71% | 2805 fps | 96.6% |
| ADI AR 2219 | <<locked>> | 82% | 70,779 psi | 89% | 2861 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 72,127 psi | 90% | 2904 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 70,169 psi | 88% | 2815 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 71,359 psi | 89% | 2972 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 71,924 psi | 90% | 3054 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 56,217 psi | 70% | 2799 fps | 96.6% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 56,217 psi | 70% | 2799 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 71,272 psi | 89% | 2927 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 68,777 psi | 86% | 2785 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 72,200 psi | 90% | 2959 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 63,686 psi | 80% | 2933 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 98% | 71,199 psi | 89% | 3022 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,347 psi | 69% | 2785 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,890 psi | 57% | 2671 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,417 psi | 66% | 2848 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 70,706 psi | 88% | 2766 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 70,256 psi | 88% | 2936 fps | 100% |
| Bofors RP3 | <<locked>> | 94% | 68,893 psi | 86% | 2904 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 71,895 psi | 90% | 2936 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 88% | 68,850 psi | 86% | 2828 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 68,530 psi | 86% | 2887 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 72,098 psi | 90% | 3005 fps | 100% |
| Hodgdon H322 | <<locked>> | 84% | 68,864 psi | 86% | 2838 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 70,764 psi | 89% | 2871 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 69,589 psi | 87% | 2923 fps | 100% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 70,082 psi | 88% | 2989 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 98% | 69,952 psi | 88% | 2953 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 90% | 70,126 psi | 88% | 2917 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 59,886 psi | 75% | 2805 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 71,301 psi | 89% | 2956 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 67,617 psi | 85% | 2986 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,027 psi | 45% | 1696 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 71,649 psi | 90% | 2920 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 71,054 psi | 89% | 2890 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 69,850 psi | 87% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 69,502 psi | 87% | 2887 fps | 99.5% |
| IMR 4198 | <<locked>> | 86% | 71,721 psi | 90% | 2779 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 64,484 psi | 81% | 2861 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 98% | 69,430 psi | 87% | 2910 fps | 99.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 63,034 psi | 79% | 2864 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 69,502 psi | 87% | 2933 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 72,127 psi | 90% | 2904 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 69,067 psi | 86% | 2844 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 70,459 psi | 88% | 2884 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 71,794 psi | 90% | 2877 fps | 100% |
| Lovex S062 | <<locked>> | 94% | 69,966 psi | 88% | 2884 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 69,082 psi | 86% | 2900 fps | 99.9% |
| Lovex S070ᴾ | <<locked>> | 100% | 66,805 psi | 84% | 2894 fps | 99.5% |
| Norma 200 | <<locked>> | 82% | 72,185 psi | 90% | 2795 fps | 100% |
| Norma 201 | <<locked>> | 92% | 71,736 psi | 90% | 2894 fps | 100% |
| Norma 202 | <<locked>> | 90% | 68,327 psi | 85% | 2841 fps | 100% |
| Norma 203B | <<locked>> | 94% | 71,228 psi | 89% | 2943 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 66,224 psi | 83% | 2920 fps | 98.1% |
| Norma MRPᴾ | <<locked>> | 100% | 51,837 psi | 65% | 2802 fps | 97.3% |
| Norma URPᴾ | <<locked>> | 100% | 65,543 psi | 82% | 2913 fps | 100% |
| Ramshot Big Game | <<locked>> | 92% | 68,632 psi | 86% | 2927 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 64,208 psi | 80% | 2917 fps | 99.6% |
| Ramshot TAC | <<locked>> | 88% | 68,690 psi | 86% | 2894 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 88% | 68,922 psi | 86% | 2904 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 86% | 69,082 psi | 86% | 2864 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,637 psi | 46% | 1736 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 71,417 psi | 89% | 2877 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 69,488 psi | 87% | 2910 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 69,821 psi | 87% | 2982 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 70,358 psi | 88% | 3012 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 67,428 psi | 84% | 2956 fps | 100% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 66,587 psi | 83% | 2995 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 72,026 psi | 90% | 2864 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 67,849 psi | 85% | 2841 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 68,313 psi | 85% | 2890 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,592 psi | 68% | 2776 fps | 96.5% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 71,895 psi | 90% | 2936 fps | 99.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 69,082 psi | 86% | 2900 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 90% | 70,459 psi | 88% | 2884 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 69,966 psi | 88% | 2884 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 66,805 psi | 84% | 2894 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 71,504 psi | 89% | 2864 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 70,387 psi | 88% | 2516 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 70,721 psi | 88% | 2871 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 70,953 psi | 89% | 2956 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 70,358 psi | 88% | 2818 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 67,617 psi | 85% | 2874 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 67,689 psi | 85% | 2881 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 68,661 psi | 86% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 69,778 psi | 87% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 70,024 psi | 88% | 2864 fps | 99.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,085 psi | 68% | 2769 fps | 96.3% |
| Somchem S321 | <<locked>> | 86% | 70,242 psi | 88% | 2890 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 72,026 psi | 90% | 2815 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 71,692 psi | 90% | 2907 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 67,892 psi | 85% | 2884 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 60,365 psi | 76% | 2861 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,230 psi | 69% | 2756 fps | 97.4% |
| Vihtavuori N130 | <<locked>> | 88% | 71,910 psi | 90% | 2776 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 68,922 psi | 86% | 2756 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 68,342 psi | 86% | 2799 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 69,314 psi | 87% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 70,300 psi | 88% | 2864 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 68,313 psi | 85% | 2913 fps | 100% |
| Vihtavuori N530 | <<locked>> | 88% | 69,024 psi | 86% | 2858 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 71,692 psi | 90% | 2867 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 67,095 psi | 84% | 2913 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,430 psi | 64% | 2746 fps | 99.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 69,140 psi | 87% | 2887 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 70,227 psi | 88% | 2910 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 70,474 psi | 88% | 2992 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,133 psi | 51% | 2694 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 68,501 psi | 86% | 2894 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 54,650 psi | 68% | 2608 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 60,336 psi | 75% | 2726 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,108 psi | 59% | 2533 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 55,332 psi | 69% | 2690 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,948 psi | 57% | 2523 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 39,508 psi | 49% | 2477 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 44,643 psi | 56% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 35,940 psi | 45% | 2418 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 62,671 psi | 78% | 2680 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 63,208 psi | 79% | 2713 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 58,131 psi | 73% | 2087 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 50,546 psi | 63% | 2648 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 42,917 psi | 54% | 2500 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 98% | 52,678 psi | 66% | 2743 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 65,920 psi | 82% | 2805 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,736 psi | 66% | 2654 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 54,302 psi | 68% | 2635 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 62,482 psi | 78% | 2864 fps | 100% |
| Alliant Power Pro 2000-MR | 50.3 gr | 80% | 46,992 psi | 59% | 2694 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,547 psi | 66% | 2740 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,547 psi | 66% | 2740 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,946 psi | 54% | 2520 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 60,698 psi | 76% | 2690 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,093 psi | 58% | 2585 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 82% | 35,549 psi | 44% | 2431 fps | 95.8% |
| Alliant Reloder-17 | 49.5 gr | 80% | 37,492 psi | 47% | 2500 fps | 98.2% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,808 psi | 65% | 2730 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 88% | 31,096 psi | 39% | 2336 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,260 psi | 45% | 2516 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 62,410 psi | 78% | 2677 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,285 psi | 63% | 2657 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 42,917 psi | 54% | 2526 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 46,267 psi | 58% | 2559 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,128 psi | 68% | 2638 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,344 psi | 65% | 2677 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 58,610 psi | 73% | 2835 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 60,698 psi | 76% | 2743 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 61,699 psi | 77% | 2766 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,526 psi | 54% | 2533 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 44,005 psi | 55% | 2585 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 88% | 50,618 psi | 63% | 2671 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 51,111 psi | 64% | 2657 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,792 psi | 39% | 2280 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,587 psi | 60% | 2635 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 46,630 psi | 58% | 2667 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 34% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,124 psi | 61% | 2615 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 51,474 psi | 64% | 2648 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,078 psi | 56% | 2536 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,601 psi | 60% | 2562 fps | 96.4% |
| IMR 4198 | <<locked>> | 80% | 60,321 psi | 75% | 2651 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 46,963 psi | 59% | 2592 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,179 psi | 57% | 2539 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 34,751 psi | 43% | 2375 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 47,268 psi | 59% | 2615 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 52,736 psi | 66% | 2654 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 60,046 psi | 75% | 2736 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,256 psi | 63% | 2625 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,850 psi | 62% | 2585 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 45,107 psi | 56% | 2533 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 39,450 psi | 49% | 2431 fps | 95.5% |
| Lovex S070 | <<locked>> | 86% | 42,830 psi | 54% | 2513 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 68,081 psi | 85% | 2753 fps | 100% |
| Norma 201 | <<locked>> | 80% | 49,356 psi | 62% | 2598 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,908 psi | 62% | 2598 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,426 psi | 57% | 2572 fps | 99.2% |
| Norma 204 | <<locked>> | 92% | 50,459 psi | 63% | 2687 fps | 95% |
| Norma MRP | <<locked>> | 96% | 44,875 psi | 56% | 2674 fps | 95.3% |
| Norma URP | <<locked>> | 82% | 36,172 psi | 45% | 2421 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 45,600 psi | 57% | 2592 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 40,147 psi | 50% | 2516 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 52,736 psi | 66% | 2667 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,591 psi | 66% | 2684 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 56,782 psi | 71% | 2707 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 34% | 1549 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 58,929 psi | 74% | 2730 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,816 psi | 55% | 2520 fps | 96% |
| ReloadSwiss RS 52 | 48.7 gr | 80% | 49,443 psi | 62% | 2697 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,943 psi | 50% | 2562 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,737 psi | 45% | 2431 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 37,739 psi | 47% | 2497 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 53,142 psi | 66% | 2631 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,905 psi | 59% | 2552 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,408 psi | 51% | 2474 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 98% | 50,908 psi | 64% | 2713 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 86% | 46,267 psi | 58% | 2559 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 39,450 psi | 49% | 2431 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,256 psi | 63% | 2625 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,107 psi | 56% | 2533 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 42,830 psi | 54% | 2513 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 62,439 psi | 78% | 2759 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 63,483 psi | 79% | 2444 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 66,108 psi | 83% | 2818 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,568 psi | 52% | 2520 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 61,989 psi | 78% | 2720 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,213 psi | 64% | 2644 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,994 psi | 61% | 2618 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,343 psi | 63% | 2546 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,279 psi | 53% | 2415 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 44,367 psi | 56% | 2490 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 50,444 psi | 63% | 2710 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 57,464 psi | 72% | 2733 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 50,125 psi | 63% | 2546 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,155 psi | 64% | 2641 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 41,031 psi | 51% | 2477 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 30,255 psi | 38% | 2316 fps | 97% |
| Somchem S385 | <<locked>> | 96% | 48,269 psi | 60% | 2641 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 56,550 psi | 71% | 2598 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 50,894 psi | 64% | 2536 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,905 psi | 59% | 2526 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,442 psi | 59% | 2539 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,117 psi | 49% | 2415 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 35,070 psi | 44% | 2369 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 52,982 psi | 66% | 2651 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,629 psi | 57% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 36,912 psi | 46% | 2421 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 34,200 psi | 43% | 2411 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,519 psi | 43% | 2346 fps | 97.5% |
| Winchester 748 | <<locked>> | 80% | 53,490 psi | 67% | 2700 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 44,005 psi | 55% | 2585 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 92% | 31,430 psi | 39% | 2428 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,008 psi | 61% | 2628 fps | 99.8% |
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 122 powders for 7 mm Backcountry loaded with the .284 | 150gr | Peregrine VLR-4. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,054 fps; across all powders the maximum-charge window runs from 1,696 fps to 3,054 fps. Accurate 3100 gives the best case fill at 100 %, and 122 of the 122 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 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, 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 Power Pro 2000-MR, ReloadSwiss RS 52, Alliant Reloder-17 rank at the top here: for 7 mm Backcountry with the .284 | 150gr | Peregrine VLR-4 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.