Load Specifications
Bullet:.284 | 140gr | Sako Blade
Bullet Manufacturer:SAKO
Bullet Weight:140 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:1:10.0
Load data in caliber 7 mm Backcountry with .284 | 140gr | Sako Blade bullet and 116 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% | 69,676 psi | 87% | 2881 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 68,661 psi | 86% | 2920 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 70,010 psi | 88% | 2913 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 72,287 psi | 90% | 2992 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 68,153 psi | 85% | 2943 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,805 psi | 61% | 2730 fps | 97% |
| Accurate 4064 | <<locked>> | 94% | 69,850 psi | 87% | 2966 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 67,399 psi | 84% | 3025 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 70,184 psi | 88% | 2861 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 70,764 psi | 89% | 2897 fps | 100% |
| ADI APS 450 | <<locked>> | 92% | 70,648 psi | 88% | 2329 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 68,980 psi | 86% | 2999 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 69,865 psi | 87% | 2995 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 70,256 psi | 88% | 2953 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 71,678 psi | 90% | 2995 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 70,097 psi | 88% | 2913 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 70,895 psi | 89% | 3068 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 71,431 psi | 89% | 3150 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 70,996 psi | 89% | 3018 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 68,472 psi | 86% | 2877 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 71,504 psi | 89% | 3048 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 63,077 psi | 79% | 3018 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 98% | 70,387 psi | 88% | 3114 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,948 psi | 57% | 2749 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,170 psi | 65% | 2923 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 70,619 psi | 88% | 2861 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 70,082 psi | 88% | 3028 fps | 100% |
| Bofors RP3 | <<locked>> | 94% | 68,705 psi | 86% | 2995 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 71,808 psi | 90% | 3028 fps | 99.1% |
| Hodgdon Benchmark | <<locked>> | 88% | 68,719 psi | 86% | 2923 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 68,356 psi | 86% | 2982 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 71,678 psi | 90% | 3100 fps | 100% |
| Hodgdon H322 | <<locked>> | 84% | 68,443 psi | 86% | 2933 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 70,401 psi | 88% | 2966 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 69,299 psi | 87% | 3012 fps | 100% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 69,894 psi | 87% | 3077 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 98% | 69,227 psi | 87% | 3031 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 90% | 69,749 psi | 87% | 3009 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 59,466 psi | 74% | 2890 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 70,779 psi | 89% | 3051 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 66,935 psi | 84% | 3068 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,940 psi | 45% | 1759 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 71,054 psi | 89% | 3009 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 70,822 psi | 89% | 2986 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 69,691 psi | 87% | 2986 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 69,270 psi | 87% | 2976 fps | 99.2% |
| IMR 4198 | <<locked>> | 86% | 71,330 psi | 89% | 2874 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 64,223 psi | 80% | 2946 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 98% | 69,314 psi | 87% | 3002 fps | 99.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 62,859 psi | 79% | 2953 fps | 99.9% |
| IMR 4895 | <<locked>> | 92% | 69,038 psi | 86% | 3025 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 71,678 psi | 90% | 2995 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 68,937 psi | 86% | 2940 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 70,372 psi | 88% | 2979 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 71,402 psi | 89% | 2969 fps | 100% |
| Lovex S062 | <<locked>> | 94% | 69,589 psi | 87% | 2972 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 69,038 psi | 86% | 2989 fps | 99.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 66,355 psi | 83% | 2976 fps | 99.1% |
| Norma 201 | <<locked>> | 92% | 71,533 psi | 90% | 2989 fps | 100% |
| Norma 202 | <<locked>> | 90% | 68,153 psi | 85% | 2936 fps | 100% |
| Norma 203B | <<locked>> | 94% | 70,619 psi | 88% | 3035 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 65,992 psi | 83% | 3005 fps | 97.5% |
| Norma MRPᴾ | <<locked>> | 100% | 51,459 psi | 64% | 2877 fps | 96.5% |
| Norma URPᴾ | <<locked>> | 100% | 64,934 psi | 81% | 2999 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 92% | 68,385 psi | 86% | 3018 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 64,034 psi | 80% | 3002 fps | 99.3% |
| Ramshot TAC | <<locked>> | 88% | 68,429 psi | 86% | 2982 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 68,603 psi | 86% | 2995 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 86% | 68,646 psi | 86% | 2953 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,564 psi | 46% | 1801 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 71,156 psi | 89% | 2976 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 68,951 psi | 86% | 2995 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 69,488 psi | 87% | 3077 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 69,705 psi | 87% | 3107 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 67,167 psi | 84% | 3048 fps | 100% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 65,760 psi | 82% | 3077 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 90% | 71,982 psi | 90% | 2963 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 72,098 psi | 90% | 2986 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 68,168 psi | 85% | 2986 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 71,808 psi | 90% | 3028 fps | 99.1% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 69,038 psi | 86% | 2989 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 70,372 psi | 88% | 2979 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 69,589 psi | 87% | 2972 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 66,355 psi | 83% | 2976 fps | 99.1% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 71,127 psi | 89% | 2956 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 69,981 psi | 88% | 2605 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 70,503 psi | 88% | 2966 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 70,619 psi | 88% | 3051 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 69,778 psi | 87% | 2910 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 72,214 psi | 90% | 3022 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 71,649 psi | 90% | 3022 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 68,284 psi | 85% | 2871 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 69,299 psi | 87% | 2867 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 69,836 psi | 87% | 2953 fps | 99.2% |
| Somchem S321 | <<locked>> | 86% | 70,140 psi | 88% | 2986 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 71,808 psi | 90% | 2910 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 71,518 psi | 89% | 3002 fps | 100% |
| Somchem S355 | <<locked>> | 98% | 72,069 psi | 90% | 3028 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 60,060 psi | 75% | 2949 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,810 psi | 69% | 2828 fps | 96.7% |
| Vihtavuori N120 | <<locked>> | 82% | 72,287 psi | 90% | 2808 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 71,620 psi | 90% | 2867 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 68,487 psi | 86% | 2848 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 72,301 psi | 90% | 2936 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 68,879 psi | 86% | 2913 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 69,879 psi | 87% | 2953 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 68,008 psi | 85% | 3002 fps | 100% |
| Vihtavuori N530 | <<locked>> | 88% | 68,705 psi | 86% | 2953 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 71,330 psi | 89% | 2959 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 66,688 psi | 83% | 3002 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,227 psi | 64% | 2828 fps | 99.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 68,603 psi | 86% | 2976 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 69,662 psi | 87% | 3002 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 69,894 psi | 87% | 3077 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,365 psi | 52% | 2769 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 90% | 68,168 psi | 85% | 2986 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% | 54,462 psi | 68% | 2694 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 60,321 psi | 75% | 2818 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,630 psi | 60% | 2625 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 55,288 psi | 69% | 2779 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 48,950 psi | 61% | 2654 fps | 95.2% |
| Accurate 3100 | <<locked>> | 96% | 42,612 psi | 53% | 2612 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 45,034 psi | 56% | 2618 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 36,274 psi | 45% | 2497 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 62,352 psi | 78% | 2769 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 62,859 psi | 79% | 2802 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 58,102 psi | 73% | 2169 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 50,430 psi | 63% | 2730 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 42,888 psi | 54% | 2579 fps | 97.8% |
| ADI AR 2219 | <<locked>> | 80% | 65,615 psi | 82% | 2900 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,489 psi | 66% | 2736 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 54,157 psi | 68% | 2723 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 62,047 psi | 78% | 2953 fps | 100% |
| Alliant Power Pro 2000-MR | 51.7 gr | 80% | 46,717 psi | 58% | 2772 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,236 psi | 54% | 2605 fps | 99.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 60,713 psi | 76% | 2785 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,977 psi | 58% | 2667 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 82% | 35,737 psi | 45% | 2507 fps | 95% |
| Alliant Reloder-17 | 50.9 gr | 80% | 37,550 psi | 47% | 2572 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 90% | 33,286 psi | 42% | 2464 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 92% | 39,015 psi | 49% | 2654 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 62,018 psi | 78% | 2762 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,038 psi | 63% | 2740 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 43,236 psi | 54% | 2612 fps | 99.1% |
| Bofors RP7 | <<locked>> | 88% | 49,298 psi | 62% | 2694 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,969 psi | 68% | 2723 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,199 psi | 65% | 2762 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 58,088 psi | 73% | 2917 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 80% | 60,263 psi | 75% | 2831 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 61,670 psi | 77% | 2858 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,729 psi | 55% | 2615 fps | 97% |
| Hodgdon H414 | <<locked>> | 88% | 46,891 psi | 59% | 2720 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 88% | 50,459 psi | 63% | 2749 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 50,952 psi | 64% | 2743 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 32,953 psi | 41% | 2405 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,442 psi | 59% | 2717 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 90% | 50,096 psi | 63% | 2805 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,992 psi | 34% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,892 psi | 61% | 2694 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 51,372 psi | 64% | 2736 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,078 psi | 56% | 2615 fps | 98.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,427 psi | 59% | 2638 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 59,988 psi | 75% | 2740 fps | 100% |
| IMR 4350 | <<locked>> | 92% | 49,835 psi | 62% | 2720 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 48,037 psi | 60% | 2671 fps | 95.7% |
| IMR 4831 | <<locked>> | 84% | 37,202 psi | 47% | 2507 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 47,166 psi | 59% | 2694 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 52,489 psi | 66% | 2736 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 60,249 psi | 75% | 2831 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,401 psi | 63% | 2713 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,763 psi | 62% | 2667 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 45,223 psi | 57% | 2618 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 42,322 psi | 53% | 2562 fps | 95.7% |
| Lovex S070 | <<locked>> | 88% | 45,687 psi | 57% | 2648 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 49,487 psi | 62% | 2684 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 50,096 psi | 63% | 2690 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,382 psi | 57% | 2654 fps | 98.8% |
| Norma 204 | <<locked>> | 94% | 53,679 psi | 67% | 2822 fps | 95.1% |
| Norma MRP | <<locked>> | 98% | 48,182 psi | 60% | 2818 fps | 95.6% |
| Norma URP | <<locked>> | 84% | 38,595 psi | 48% | 2549 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 45,469 psi | 57% | 2674 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 42,801 psi | 54% | 2648 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 52,489 psi | 66% | 2749 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,663 psi | 66% | 2772 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 56,521 psi | 71% | 2789 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,398 psi | 34% | 1611 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 58,813 psi | 74% | 2822 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,888 psi | 55% | 2598 fps | 95.3% |
| ReloadSwiss RS 52 | 50.1 gr | 80% | 49,342 psi | 62% | 2779 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,943 psi | 50% | 2641 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 38,508 psi | 48% | 2569 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 40,509 psi | 51% | 2635 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 53,505 psi | 67% | 2723 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,079 psi | 59% | 2635 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 40,611 psi | 51% | 2552 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 49,298 psi | 62% | 2694 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 42,322 psi | 53% | 2562 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,401 psi | 63% | 2713 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,223 psi | 57% | 2618 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 45,687 psi | 57% | 2648 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 62,105 psi | 78% | 2848 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 63,338 psi | 79% | 2533 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 66,036 psi | 83% | 2913 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,597 psi | 52% | 2602 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 61,786 psi | 77% | 2815 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,372 psi | 64% | 2730 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,936 psi | 61% | 2700 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,401 psi | 63% | 2635 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,409 psi | 53% | 2497 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 47,297 psi | 59% | 2618 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 57,232 psi | 72% | 2818 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 50,212 psi | 63% | 2635 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,952 psi | 64% | 2723 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 41,176 psi | 52% | 2556 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 30,458 psi | 38% | 2388 fps | 96.2% |
| Somchem S385 | <<locked>> | 96% | 48,167 psi | 60% | 2717 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 68,385 psi | 86% | 2766 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 56,579 psi | 71% | 2690 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 50,865 psi | 64% | 2625 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,036 psi | 59% | 2615 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,369 psi | 59% | 2625 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,204 psi | 49% | 2493 fps | 99% |
| Vihtavuori N160 | <<locked>> | 82% | 37,724 psi | 47% | 2503 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 52,997 psi | 66% | 2736 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,759 psi | 57% | 2608 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 39,697 psi | 50% | 2556 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 90% | 36,709 psi | 46% | 2543 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,592 psi | 43% | 2418 fps | 96.8% |
| Winchester 748 | <<locked>> | 80% | 53,301 psi | 67% | 2785 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 47,181 psi | 59% | 2726 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 92% | 31,560 psi | 39% | 2490 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,892 psi | 61% | 2707 fps | 99.6% |
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 116 powders for 7 mm Backcountry loaded with the .284 | 140gr | Sako Blade. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,150 fps; across all powders the maximum-charge window runs from 1,759 fps to 3,150 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 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 140.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 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 | 140gr | Sako Blade 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.