Load Specifications
Bullet Manufacturer:TWENTY-NINE
Bullet Weight:168 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:1:8.0
Load data in caliber 7 mm Backcountry with .284 | 168gr | TWENTY-NINE ERTP-LO bullet and 133 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Superformance, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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% | 69,488 psi | 87% | 2612 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 68,255 psi | 85% | 2651 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 70,140 psi | 88% | 2648 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 72,069 psi | 90% | 2720 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 72,069 psi | 90% | 2740 fps | 99.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,750 psi | 66% | 2566 fps | 99% |
| Accurate 4064 | <<locked>> | 92% | 70,053 psi | 88% | 2697 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 67,675 psi | 85% | 2769 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 57,870 psi | 72% | 2749 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 82% | 69,343 psi | 87% | 2589 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 69,952 psi | 88% | 2621 fps | 100% |
| ADI APS 450 | <<locked>> | 92% | 70,822 psi | 89% | 2106 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 68,850 psi | 86% | 2733 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 69,763 psi | 87% | 2733 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 59,901 psi | 75% | 2703 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 88% | 71,373 psi | 89% | 2723 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 70,039 psi | 88% | 2641 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 70,634 psi | 88% | 2785 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 71,359 psi | 89% | 2871 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 59,843 psi | 75% | 2697 fps | 98.2% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 59,843 psi | 75% | 2697 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 71,025 psi | 89% | 2753 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 68,124 psi | 85% | 2605 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 71,431 psi | 89% | 2779 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 67,791 psi | 85% | 2815 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 70,532 psi | 88% | 2841 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 58,958 psi | 74% | 2690 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,721 psi | 66% | 2638 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,588 psi | 62% | 2582 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,207 psi | 54% | 2503 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 57,203 psi | 72% | 2766 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 69,473 psi | 87% | 2589 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 69,792 psi | 87% | 2762 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,153 psi | 60% | 2562 fps | 95.9% |
| Bofors RP3 | <<locked>> | 92% | 68,617 psi | 86% | 2730 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,721 psi | 66% | 2638 fps | 97.1% |
| Bofors RP7 | <<locked>> | 98% | 71,402 psi | 89% | 2769 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 72,171 psi | 90% | 2694 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 67,936 psi | 85% | 2713 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 71,475 psi | 89% | 2825 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 68,269 psi | 85% | 2661 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 69,763 psi | 87% | 2690 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 69,183 psi | 87% | 2753 fps | 100% |
| Hodgdon H414 | <<locked>> | 98% | 70,097 psi | 88% | 2822 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 96% | 69,299 psi | 87% | 2782 fps | 99.4% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 57,638 psi | 72% | 2648 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 69,676 psi | 87% | 2740 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 63,947 psi | 80% | 2690 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 70,924 psi | 89% | 2782 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 72,200 psi | 90% | 2877 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,463 psi | 46% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 70,648 psi | 88% | 2740 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 70,764 psi | 89% | 2710 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 69,328 psi | 87% | 2717 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 68,617 psi | 86% | 2713 fps | 99.8% |
| IMR 4198 | <<locked>> | 84% | 70,677 psi | 88% | 2595 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 68,037 psi | 85% | 2746 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 96% | 68,705 psi | 86% | 2740 fps | 99.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 67,486 psi | 84% | 2753 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 69,038 psi | 86% | 2759 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 59,146 psi | 74% | 2635 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 88% | 71,373 psi | 89% | 2723 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 68,530 psi | 86% | 2667 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 70,242 psi | 88% | 2710 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 70,808 psi | 89% | 2700 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 69,372 psi | 87% | 2707 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 68,806 psi | 86% | 2733 fps | 100% |
| Lovex S070ᴾ | <<locked>> | 100% | 70,634 psi | 88% | 2776 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,077 psi | 55% | 2428 fps | 97.5% |
| Norma 201 | <<locked>> | 90% | 71,301 psi | 89% | 2720 fps | 100% |
| Norma 202 | <<locked>> | 88% | 68,095 psi | 85% | 2667 fps | 100% |
| Norma 203B | <<locked>> | 92% | 70,546 psi | 88% | 2766 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 70,546 psi | 88% | 2812 fps | 99.2% |
| Norma MRPᴾ | <<locked>> | 100% | 55,825 psi | 70% | 2717 fps | 98.9% |
| Norma URPᴾ | <<locked>> | 100% | 69,488 psi | 87% | 2795 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 68,110 psi | 85% | 2753 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 68,574 psi | 86% | 2808 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,905 psi | 57% | 2510 fps | 96% |
| Ramshot TAC | <<locked>> | 86% | 67,921 psi | 85% | 2720 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 86% | 68,153 psi | 85% | 2726 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 67,921 psi | 85% | 2684 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,217 psi | 47% | 1631 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 70,808 psi | 89% | 2700 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 68,675 psi | 86% | 2736 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 69,633 psi | 87% | 2808 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 70,343 psi | 88% | 2835 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 72,040 psi | 90% | 2841 fps | 100% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 70,779 psi | 89% | 2877 fps | 100% |
| Rottweil R 901 | <<locked>> | 88% | 71,620 psi | 90% | 2687 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 71,968 psi | 90% | 2720 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 68,458 psi | 86% | 2723 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 61,946 psi | 78% | 2680 fps | 97.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 58,320 psi | 73% | 2677 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 98% | 71,402 psi | 89% | 2769 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 68,806 psi | 86% | 2733 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 88% | 70,242 psi | 88% | 2710 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 69,372 psi | 87% | 2707 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 70,634 psi | 88% | 2776 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 70,227 psi | 88% | 2680 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 69,082 psi | 86% | 2343 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 70,503 psi | 88% | 2782 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 69,517 psi | 87% | 2635 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 71,634 psi | 90% | 2753 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 71,649 psi | 90% | 2756 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 68,037 psi | 85% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 69,024 psi | 86% | 2605 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 69,386 psi | 87% | 2700 fps | 99.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 57,812 psi | 72% | 2674 fps | 98% |
| Somchem S321 | <<locked>> | 84% | 69,299 psi | 87% | 2713 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 71,417 psi | 89% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 71,141 psi | 89% | 2736 fps | 100% |
| Somchem S355 | <<locked>> | 96% | 71,939 psi | 90% | 2759 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 64,034 psi | 80% | 2677 fps | 97% |
| Somchem S365ᴾ | <<locked>> | 100% | 64,745 psi | 81% | 2746 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 59,176 psi | 74% | 2661 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 86% | 71,025 psi | 89% | 2595 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 68,371 psi | 86% | 2582 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 68,472 psi | 86% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 68,893 psi | 86% | 2651 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 69,821 psi | 87% | 2690 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 68,023 psi | 85% | 2743 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,894 psi | 64% | 2530 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 86% | 68,211 psi | 85% | 2680 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 71,069 psi | 89% | 2694 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 71,388 psi | 89% | 2799 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,492 psi | 69% | 2654 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 56,217 psi | 70% | 2707 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 68,385 psi | 86% | 2713 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 69,343 psi | 87% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 70,097 psi | 88% | 2822 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,860 psi | 56% | 2628 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 67,907 psi | 85% | 2720 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,390 psi | 69% | 2602 fps | 97.4% |
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% | 57,827 psi | 72% | 2484 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 63,889 psi | 80% | 2605 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 51,082 psi | 64% | 2428 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 58,943 psi | 74% | 2575 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,704 psi | 61% | 2428 fps | 97% |
| Accurate 3100 | <<locked>> | 90% | 37,739 psi | 47% | 2306 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 48,414 psi | 61% | 2434 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,825 psi | 46% | 2300 fps | 97.2% |
| Accurate High Country | <<locked>> | 96% | 50,198 psi | 63% | 2628 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 65,282 psi | 82% | 2543 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 65,862 psi | 82% | 2575 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 58,378 psi | 73% | 1959 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 53,824 psi | 67% | 2543 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,803 psi | 57% | 2408 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 46,398 psi | 58% | 2490 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 55,883 psi | 70% | 2539 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 57,856 psi | 72% | 2513 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 66,369 psi | 83% | 2740 fps | 100% |
| Alliant Power Pro 2000-MR | 48 gr | 80% | 50,227 psi | 63% | 2595 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 46,282 psi | 58% | 2487 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 46,282 psi | 58% | 2487 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,035 psi | 58% | 2428 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 80% | 64,063 psi | 80% | 2562 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,313 psi | 62% | 2490 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,940 psi | 45% | 2306 fps | 97.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,611 psi | 51% | 2425 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 45,716 psi | 57% | 2480 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 46,122 psi | 58% | 2526 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 82% | 28,036 psi | 35% | 2129 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 94% | 35,926 psi | 45% | 2343 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 86% | 34,418 psi | 43% | 2346 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 65,325 psi | 82% | 2546 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,519 psi | 67% | 2556 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 45,208 psi | 57% | 2510 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 46,514 psi | 58% | 2438 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 46,122 psi | 58% | 2526 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 40,843 psi | 51% | 2316 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 57,014 psi | 71% | 2520 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 55,753 psi | 70% | 2566 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 62,149 psi | 78% | 2717 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 63,788 psi | 80% | 2612 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 65,369 psi | 82% | 2641 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 46,905 psi | 59% | 2448 fps | 99% |
| Hodgdon H414 | <<locked>> | 80% | 38,812 psi | 49% | 2343 fps | 95% |
| Hodgdon H4350 | <<locked>> | 82% | 44,469 psi | 56% | 2415 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 98% | 54,056 psi | 68% | 2595 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 54,418 psi | 68% | 2549 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,475 psi | 42% | 2215 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,024 psi | 64% | 2536 fps | 100% |
| Hodgdon Superformance | 52.5 gr | 84% | 43,410 psi | 54% | 2464 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 34% | 1417 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,851 psi | 65% | 2500 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 55,187 psi | 69% | 2533 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,196 psi | 60% | 2438 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,241 psi | 63% | 2461 fps | 98% |
| IMR 4198 | <<locked>> | 80% | 63,222 psi | 79% | 2516 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 41,626 psi | 52% | 2352 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,221 psi | 53% | 2343 fps | 96% |
| IMR 4831 | <<locked>> | 80% | 35,447 psi | 44% | 2257 fps | 96.9% |
| IMR 4895 | <<locked>> | 80% | 50,604 psi | 63% | 2516 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,637 psi | 70% | 2585 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 55,883 psi | 70% | 2539 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 64,150 psi | 80% | 2621 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 54,244 psi | 68% | 2523 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,823 psi | 66% | 2477 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,443 psi | 61% | 2438 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,914 psi | 50% | 2303 fps | 96.8% |
| Lovex S070 | <<locked>> | 80% | 38,145 psi | 48% | 2280 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 36,405 psi | 46% | 2280 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 52,576 psi | 66% | 2490 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,069 psi | 66% | 2487 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,689 psi | 61% | 2480 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 47,036 psi | 59% | 2484 fps | 95.4% |
| Norma MRP | <<locked>> | 92% | 42,424 psi | 53% | 2487 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 36,680 psi | 46% | 2297 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 48,791 psi | 61% | 2497 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 37,884 psi | 47% | 2333 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 98% | 42,670 psi | 53% | 2451 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 55,782 psi | 70% | 2562 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 56,072 psi | 70% | 2579 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 59,799 psi | 75% | 2589 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,760 psi | 35% | 1453 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 62,424 psi | 78% | 2608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,847 psi | 59% | 2431 fps | 97.8% |
| ReloadSwiss RS 52 | 46.5 gr | 80% | 53,098 psi | 66% | 2595 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,192 psi | 54% | 2477 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,376 psi | 46% | 2310 fps | 96.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,462 psi | 44% | 2313 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 56,681 psi | 71% | 2513 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 50,227 psi | 63% | 2451 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,758 psi | 55% | 2388 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 51,039 psi | 64% | 2520 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 92% | 44,788 psi | 56% | 2464 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 40,843 psi | 51% | 2316 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,914 psi | 50% | 2303 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 54,244 psi | 68% | 2523 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 48,443 psi | 61% | 2438 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,145 psi | 48% | 2280 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 65,717 psi | 82% | 2635 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 65,876 psi | 82% | 2310 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,643 psi | 56% | 2434 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 65,325 psi | 82% | 2589 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 54,868 psi | 69% | 2549 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,040 psi | 65% | 2513 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,287 psi | 67% | 2431 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,034 psi | 56% | 2310 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,088 psi | 49% | 2254 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 44,367 psi | 56% | 2461 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 60,858 psi | 76% | 2615 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 53,142 psi | 66% | 2431 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 54,404 psi | 68% | 2533 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,077 psi | 55% | 2388 fps | 99.8% |
| Somchem S361 | <<locked>> | 96% | 56,057 psi | 70% | 2569 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 33,040 psi | 41% | 2254 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 42,815 psi | 54% | 2402 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 59,596 psi | 75% | 2474 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 53,853 psi | 67% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,299 psi | 63% | 2418 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,531 psi | 63% | 2431 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,076 psi | 53% | 2326 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,072 psi | 48% | 2297 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 96% | 44,788 psi | 56% | 2431 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 56,347 psi | 71% | 2539 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 48,863 psi | 61% | 2425 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,579 psi | 47% | 2300 fps | 97.1% |
| Vihtavuori N555 | <<locked>> | 82% | 30,893 psi | 39% | 2198 fps | 95.6% |
| Vihtavuori N560 | <<locked>> | 98% | 52,446 psi | 66% | 2648 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,101 psi | 46% | 2270 fps | 99.1% |
| Winchester 748 | <<locked>> | 80% | 57,072 psi | 71% | 2585 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 38,812 psi | 49% | 2343 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 86% | 28,108 psi | 35% | 2205 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,112 psi | 65% | 2520 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 48,211 psi | 60% | 2493 fps | 95.8% |
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 133 powders for 7 mm Backcountry loaded with the .284 | 168gr | TWENTY-NINE ERTP-LO. Hodgdon Superformance delivers the highest muzzle velocity at 2,877 fps; across all powders the maximum-charge window runs from 1,591 fps to 2,877 fps. Accurate 3100 gives the best case fill at 100 %, and 133 of the 133 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (551 MPa), the top charges use 46–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.284" calls for a 1:8.0 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. Hodgdon Superformance, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 7 mm Backcountry with the .284 | 168gr | TWENTY-NINE ERTP-LO 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.