Load Specifications
Bullet:.284 | 152gr | Barnes LRX BT
Bullet Manufacturer:Barnes
Bullet Weight:152 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 | 152gr | Barnes LRX BT bullet and 121 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, 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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 70,358 psi | 88% | 2772 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 69,198 psi | 87% | 2812 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 70,401 psi | 88% | 2802 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 68,371 psi | 86% | 2831 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 68,705 psi | 86% | 2844 fps | 99.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,211 psi | 62% | 2641 fps | 97.8% |
| Accurate 4064 | <<locked>> | 94% | 70,459 psi | 88% | 2854 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 68,298 psi | 85% | 2923 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 70,851 psi | 89% | 2753 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 71,460 psi | 89% | 2789 fps | 100% |
| ADI APS 450 | <<locked>> | 92% | 70,938 psi | 89% | 2231 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 69,836 psi | 87% | 2894 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 71,040 psi | 89% | 2897 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,942 psi | 71% | 2795 fps | 96.8% |
| ADI AR 2219 | <<locked>> | 82% | 71,272 psi | 89% | 2844 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 68,211 psi | 85% | 2838 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 70,735 psi | 89% | 2802 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 71,910 psi | 90% | 2959 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 67,834 psi | 85% | 2986 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 71,866 psi | 90% | 2913 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 69,212 psi | 87% | 2772 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 68,284 psi | 85% | 2894 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 64,339 psi | 81% | 2920 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 98% | 71,547 psi | 90% | 3009 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,927 psi | 70% | 2779 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,369 psi | 58% | 2661 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,567 psi | 51% | 2562 fps | 96.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,113 psi | 66% | 2841 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 71,199 psi | 89% | 2753 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 70,851 psi | 89% | 2923 fps | 100% |
| Bofors RP3 | <<locked>> | 94% | 69,473 psi | 87% | 2890 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 67,936 psi | 85% | 2871 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 88% | 69,314 psi | 87% | 2815 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 69,111 psi | 86% | 2877 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 67,820 psi | 85% | 2936 fps | 100% |
| Hodgdon H322 | <<locked>> | 84% | 69,343 psi | 87% | 2825 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 71,301 psi | 89% | 2858 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 70,213 psi | 88% | 2913 fps | 100% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 70,808 psi | 89% | 2976 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 98% | 70,155 psi | 88% | 2936 fps | 99% |
| Hodgdon H4895 | <<locked>> | 90% | 70,677 psi | 88% | 2904 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 60,510 psi | 76% | 2795 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 71,953 psi | 90% | 2946 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 68,429 psi | 86% | 2976 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,926 psi | 45% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 72,200 psi | 90% | 2907 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 71,634 psi | 90% | 2874 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 70,387 psi | 88% | 2881 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 70,024 psi | 88% | 2874 fps | 99.6% |
| IMR 4198 | <<locked>> | 86% | 72,171 psi | 90% | 2762 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 65,079 psi | 81% | 2851 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 98% | 69,995 psi | 88% | 2900 fps | 99.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 63,686 psi | 80% | 2854 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 70,082 psi | 88% | 2920 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 68,211 psi | 85% | 2838 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 69,633 psi | 87% | 2831 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 71,083 psi | 89% | 2871 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 72,287 psi | 90% | 2864 fps | 100% |
| Lovex S062 | <<locked>> | 94% | 70,488 psi | 88% | 2871 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 69,676 psi | 87% | 2887 fps | 100% |
| Lovex S070ᴾ | <<locked>> | 100% | 67,037 psi | 84% | 2877 fps | 99.5% |
| Norma 201 | <<locked>> | 92% | 72,258 psi | 90% | 2884 fps | 100% |
| Norma 202 | <<locked>> | 90% | 68,850 psi | 86% | 2828 fps | 100% |
| Norma 203B | <<locked>> | 94% | 71,837 psi | 90% | 2930 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 66,906 psi | 84% | 2910 fps | 98.3% |
| Norma MRPᴾ | <<locked>> | 100% | 52,417 psi | 66% | 2795 fps | 97.5% |
| Norma URPᴾ | <<locked>> | 100% | 65,789 psi | 82% | 2897 fps | 100% |
| Ramshot Big Game | <<locked>> | 92% | 69,270 psi | 87% | 2913 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 64,890 psi | 81% | 2907 fps | 99.7% |
| Ramshot TAC | <<locked>> | 88% | 69,227 psi | 87% | 2881 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 88% | 69,473 psi | 87% | 2890 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 86% | 69,589 psi | 87% | 2851 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,550 psi | 46% | 1719 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 71,866 psi | 90% | 2864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 70,024 psi | 88% | 2897 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 70,503 psi | 88% | 2969 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 71,141 psi | 89% | 3002 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 68,168 psi | 85% | 2946 fps | 100% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 66,921 psi | 84% | 2979 fps | 100% |
| Rottweil R 901 | <<locked>> | 88% | 68,081 psi | 85% | 2802 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 68,356 psi | 86% | 2831 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 68,951 psi | 86% | 2877 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 58,827 psi | 74% | 2769 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,853 psi | 69% | 2762 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 98% | 67,936 psi | 85% | 2871 fps | 99.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 69,676 psi | 87% | 2887 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 90% | 71,083 psi | 89% | 2871 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 70,488 psi | 88% | 2871 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 67,037 psi | 84% | 2877 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 72,026 psi | 90% | 2851 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 70,619 psi | 88% | 2500 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 71,228 psi | 89% | 2854 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 71,620 psi | 90% | 2946 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 70,808 psi | 89% | 2802 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 68,197 psi | 85% | 2864 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 68,226 psi | 85% | 2871 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 69,125 psi | 86% | 2766 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 70,285 psi | 88% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 70,721 psi | 88% | 2854 fps | 99.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,360 psi | 68% | 2756 fps | 96.5% |
| Somchem S321 | <<locked>> | 86% | 70,793 psi | 89% | 2877 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 68,168 psi | 85% | 2756 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 72,301 psi | 90% | 2897 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 68,472 psi | 86% | 2874 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 61,046 psi | 76% | 2851 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,492 psi | 69% | 2743 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 86% | 68,269 psi | 85% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 69,386 psi | 87% | 2743 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 68,879 psi | 86% | 2785 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 69,821 psi | 87% | 2808 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 70,851 psi | 89% | 2851 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 68,980 psi | 86% | 2900 fps | 100% |
| Vihtavuori N530 | <<locked>> | 88% | 69,488 psi | 87% | 2844 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 72,287 psi | 90% | 2854 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 67,704 psi | 85% | 2904 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,750 psi | 65% | 2736 fps | 99.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 69,879 psi | 87% | 2877 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 70,430 psi | 88% | 2894 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 71,199 psi | 89% | 2982 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,626 psi | 52% | 2687 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 69,096 psi | 86% | 2881 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% | 54,998 psi | 69% | 2595 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 60,785 psi | 76% | 2713 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,500 psi | 59% | 2520 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 55,782 psi | 70% | 2680 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,296 psi | 58% | 2513 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 39,987 psi | 50% | 2474 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 45,034 psi | 56% | 2516 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,765 psi | 42% | 2352 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 63,005 psi | 79% | 2664 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 63,556 psi | 80% | 2697 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 58,320 psi | 73% | 2077 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 50,923 psi | 64% | 2635 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 43,221 psi | 54% | 2487 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 96% | 49,705 psi | 62% | 2677 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 66,384 psi | 83% | 2792 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,098 psi | 66% | 2641 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 54,752 psi | 69% | 2621 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 62,946 psi | 79% | 2848 fps | 100% |
| Alliant Power Pro 2000-MR | 50.2 gr | 80% | 47,427 psi | 59% | 2687 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,308 psi | 54% | 2510 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 61,076 psi | 76% | 2677 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,456 psi | 58% | 2575 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,678 psi | 42% | 2369 fps | 95.1% |
| Alliant Reloder-17 | 49.4 gr | 80% | 37,855 psi | 47% | 2490 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,965 psi | 61% | 2664 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 31,415 psi | 39% | 2333 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,971 psi | 48% | 2503 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,680 psi | 46% | 2513 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 62,801 psi | 79% | 2664 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,705 psi | 63% | 2651 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 43,294 psi | 54% | 2516 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 46,630 psi | 58% | 2549 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,505 psi | 68% | 2628 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,779 psi | 66% | 2667 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 59,132 psi | 74% | 2825 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 61,119 psi | 76% | 2730 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 62,149 psi | 78% | 2753 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,888 psi | 55% | 2523 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 44,425 psi | 56% | 2579 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 86% | 47,805 psi | 60% | 2602 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 51,474 psi | 64% | 2644 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,067 psi | 39% | 2270 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,008 psi | 60% | 2625 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 47,123 psi | 59% | 2657 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 34% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,472 psi | 62% | 2602 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 51,909 psi | 65% | 2635 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,440 psi | 57% | 2523 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,935 psi | 60% | 2552 fps | 96.7% |
| IMR 4198 | <<locked>> | 80% | 60,640 psi | 76% | 2635 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 44,338 psi | 55% | 2526 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,627 psi | 53% | 2477 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 35,128 psi | 44% | 2372 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 47,630 psi | 60% | 2605 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 53,098 psi | 66% | 2641 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 60,481 psi | 76% | 2726 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,676 psi | 63% | 2615 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,212 psi | 63% | 2572 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 45,440 psi | 57% | 2523 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 39,755 psi | 50% | 2421 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 43,192 psi | 54% | 2507 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 49,734 psi | 62% | 2589 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,270 psi | 63% | 2589 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,803 psi | 57% | 2566 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 50,676 psi | 63% | 2674 fps | 95.2% |
| Norma MRP | <<locked>> | 96% | 45,411 psi | 57% | 2667 fps | 95.7% |
| Norma URP | <<locked>> | 82% | 36,521 psi | 46% | 2411 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 46,006 psi | 58% | 2585 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 40,495 psi | 51% | 2507 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 53,098 psi | 66% | 2657 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,011 psi | 66% | 2671 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 57,188 psi | 72% | 2694 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,296 psi | 34% | 1539 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 59,335 psi | 74% | 2717 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,164 psi | 55% | 2510 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,893 psi | 62% | 2684 fps | 99.5% |
| ReloadSwiss RS 60 | 49.4 gr | 80% | 40,321 psi | 50% | 2552 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 36,129 psi | 45% | 2425 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 38,101 psi | 48% | 2493 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 53,809 psi | 67% | 2621 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,239 psi | 59% | 2539 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,756 psi | 51% | 2464 fps | 99% |
| Rottweil R 904 | <<locked>> | 98% | 54,969 psi | 69% | 2713 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 96% | 48,008 psi | 60% | 2648 fps | 95% |
| Rottweil R 907 | <<locked>> | 86% | 46,630 psi | 58% | 2549 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 82% | 39,755 psi | 50% | 2421 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,676 psi | 63% | 2615 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,440 psi | 57% | 2523 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 43,192 psi | 54% | 2507 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 62,888 psi | 79% | 2746 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 64,020 psi | 80% | 2431 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 66,572 psi | 83% | 2802 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,945 psi | 52% | 2513 fps | 98.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 62,743 psi | 79% | 2713 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,619 psi | 65% | 2635 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,371 psi | 62% | 2608 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,923 psi | 64% | 2539 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,815 psi | 54% | 2408 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 41,800 psi | 52% | 2425 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 50,966 psi | 64% | 2700 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 57,899 psi | 72% | 2720 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 50,502 psi | 63% | 2536 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,576 psi | 65% | 2631 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 41,365 psi | 52% | 2467 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 30,545 psi | 38% | 2310 fps | 97.2% |
| Somchem S385 | <<locked>> | 94% | 45,600 psi | 57% | 2579 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 57,188 psi | 72% | 2589 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 51,532 psi | 64% | 2526 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,529 psi | 59% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,790 psi | 60% | 2530 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,436 psi | 49% | 2405 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 35,389 psi | 44% | 2362 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 53,374 psi | 67% | 2638 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,977 psi | 58% | 2513 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,795 psi | 44% | 2356 fps | 95% |
| Vihtavuori N555 | <<locked>> | 86% | 32,387 psi | 41% | 2352 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,809 psi | 44% | 2339 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 53,925 psi | 67% | 2687 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 44,425 psi | 56% | 2579 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,544 psi | 37% | 2352 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,414 psi | 62% | 2615 fps | 99.9% |
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 138 powders for 7 mm Backcountry loaded with the .284 | 152gr | Barnes LRX BT. Alliant Reloder-17 delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,680 fps to 3,009 fps. Accurate 3100 gives the best case fill at 100 %, and 138 of the 138 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 152.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Accurate MAGPRO 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 7 mm Backcountry with the .284 | 152gr | Barnes LRX BT 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.