Load Specifications
Load data in caliber 7 mm-08 Rem. with .284 | 139gr | Hornady InterLock FP bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 51,938 psi | 86% | 2684 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 53,679 psi | 89% | 2753 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,040 psi | 88% | 2746 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 51,822 psi | 86% | 2762 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 52,779 psi | 88% | 2785 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,327 psi | 80% | 2789 fps | 98% |
| ADI AR 2206H | <<locked>> | 90% | 54,418 psi | 90% | 2818 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 94% | 51,793 psi | 86% | 2759 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 88% | 53,490 psi | 89% | 2772 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 53,606 psi | 89% | 2756 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 51,663 psi | 86% | 2825 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 53,490 psi | 89% | 2920 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 54,433 psi | 90% | 2831 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 51,793 psi | 86% | 2687 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 52,069 psi | 87% | 2802 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,514 psi | 79% | 2792 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 98% | 51,648 psi | 86% | 2890 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 53,751 psi | 89% | 2667 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 53,998 psi | 90% | 2828 fps | 98.9% |
| Bofors RP3 | <<locked>> | 94% | 51,445 psi | 85% | 2795 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 52,533 psi | 87% | 2713 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 52,330 psi | 87% | 2799 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 53,983 psi | 90% | 2890 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 84% | 54,259 psi | 90% | 2776 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 51,547 psi | 86% | 2746 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 52,939 psi | 88% | 2805 fps | 98.2% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 51,677 psi | 86% | 2838 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 51,372 psi | 85% | 2776 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,671 psi | 73% | 2677 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 53,403 psi | 89% | 2854 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,983 psi | 58% | 1696 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 52,678 psi | 88% | 2779 fps | 99.6% |
| IMR 3031 | <<locked>> | 90% | 54,027 psi | 90% | 2815 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 51,329 psi | 85% | 2743 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,112 psi | 87% | 2723 fps | 95.8% |
| IMR 4198 | <<locked>> | 82% | 52,170 psi | 87% | 2651 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,108 psi | 77% | 2733 fps | 97.6% |
| IMR 4895 | <<locked>> | 92% | 53,345 psi | 89% | 2835 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 88% | 53,490 psi | 89% | 2772 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 53,577 psi | 89% | 2759 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 53,316 psi | 89% | 2792 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,389 psi | 90% | 2749 fps | 99.5% |
| Lovex S062 | <<locked>> | 94% | 54,070 psi | 90% | 2792 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,084 psi | 88% | 2779 fps | 97.5% |
| Lovex S070ᴾ | <<locked>> | 100% | 50,720 psi | 84% | 2759 fps | 95.8% |
| Norma 201 | <<locked>> | 90% | 52,924 psi | 88% | 2762 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 53,548 psi | 89% | 2772 fps | 100% |
| Norma 203B | <<locked>> | 94% | 54,389 psi | 90% | 2838 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 48,095 psi | 80% | 2782 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 92% | 51,314 psi | 85% | 2812 fps | 99.2% |
| Ramshot TAC | <<locked>> | 88% | 54,143 psi | 90% | 2785 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 53,345 psi | 89% | 2808 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 51,358 psi | 85% | 2723 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,302 psi | 59% | 1736 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 53,156 psi | 88% | 2759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 53,476 psi | 89% | 2782 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 51,634 psi | 86% | 2861 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 51,532 psi | 86% | 2897 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,819 psi | 79% | 2805 fps | 97.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,747 psi | 81% | 2825 fps | 97.1% |
| Rottweil R 901 | <<locked>> | 88% | 53,998 psi | 90% | 2749 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 53,272 psi | 89% | 2759 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 96% | 51,314 psi | 85% | 2785 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,084 psi | 88% | 2779 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 53,316 psi | 89% | 2792 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,070 psi | 90% | 2792 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 50,720 psi | 84% | 2759 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 52,866 psi | 88% | 2726 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 53,229 psi | 88% | 2848 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 52,707 psi | 88% | 2710 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 51,938 psi | 86% | 2756 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 52,504 psi | 87% | 2782 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 51,953 psi | 86% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 51,358 psi | 85% | 2664 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 53,983 psi | 90% | 2736 fps | 96.2% |
| Somchem S321 | <<locked>> | 84% | 51,053 psi | 85% | 2753 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 54,027 psi | 90% | 2710 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 51,663 psi | 86% | 2756 fps | 99.2% |
| Somchem S355 | <<locked>> | 96% | 51,953 psi | 86% | 2785 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,685 psi | 71% | 2726 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 84% | 51,793 psi | 86% | 2641 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 52,011 psi | 86% | 2661 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 52,431 psi | 87% | 2733 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 53,780 psi | 89% | 2749 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 53,359 psi | 89% | 2766 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,662 psi | 84% | 2782 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 88% | 54,186 psi | 90% | 2776 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 51,967 psi | 86% | 2746 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,632 psi | 82% | 2785 fps | 97.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,445 psi | 85% | 2766 fps | 99.6% |
| Winchester 748 | <<locked>> | 88% | 53,519 psi | 89% | 2822 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 51,677 psi | 86% | 2838 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 52,388 psi | 87% | 2799 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 43,149 psi | 72% | 2549 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,876 psi | 78% | 2648 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,636 psi | 59% | 2461 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,163 psi | 70% | 2605 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 33,721 psi | 56% | 2444 fps | 99.2% |
| Accurate 4350 | <<locked>> | 94% | 38,943 psi | 65% | 2615 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 39,798 psi | 66% | 2559 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 82% | 36,056 psi | 60% | 2461 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,814 psi | 69% | 2575 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 80% | 40,901 psi | 68% | 2572 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,486 psi | 81% | 2769 fps | 99.3% |
| Alliant Power Pro 2000-MR | 41.1 gr | 82% | 38,203 psi | 63% | 2618 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,866 psi | 55% | 2421 fps | 96.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,689 psi | 81% | 2644 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,665 psi | 59% | 2487 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 94% | 39,697 psi | 66% | 2631 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 86% | 34,766 psi | 58% | 2546 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,473 psi | 84% | 2621 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,522 psi | 64% | 2549 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 32,343 psi | 54% | 2425 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,758 psi | 73% | 2569 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,885 psi | 66% | 2585 fps | 98.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,656 psi | 73% | 2713 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 80% | 47,514 psi | 79% | 2674 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,211 psi | 80% | 2694 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 40,799 psi | 68% | 2589 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 98% | 48,341 psi | 80% | 2779 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 40,074 psi | 67% | 2572 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 34,084 psi | 57% | 2474 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,752 psi | 59% | 2526 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,933 psi | 43% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,363 psi | 64% | 2520 fps | 97.3% |
| IMR 3031 | <<locked>> | 80% | 39,102 psi | 65% | 2575 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,288 psi | 59% | 2438 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 88% | 48,791 psi | 81% | 2667 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 49,356 psi | 82% | 2612 fps | 100% |
| IMR 4831 | <<locked>> | 94% | 37,927 psi | 63% | 2575 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 36,463 psi | 61% | 2520 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,814 psi | 69% | 2575 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 80% | 46,775 psi | 78% | 2654 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 38,145 psi | 63% | 2536 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 40,161 psi | 67% | 2500 fps | 97.3% |
| Lovex S062 | <<locked>> | 80% | 35,099 psi | 58% | 2448 fps | 97.3% |
| Lovex S065 | <<locked>> | 94% | 44,425 psi | 74% | 2631 fps | 95.5% |
| Lovex S070 | <<locked>> | 98% | 47,456 psi | 79% | 2703 fps | 95% |
| Norma 201 | <<locked>> | 80% | 38,827 psi | 65% | 2513 fps | 98.2% |
| Norma 202 | <<locked>> | 80% | 38,856 psi | 65% | 2526 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 35,027 psi | 58% | 2477 fps | 95.8% |
| Norma URP | <<locked>> | 94% | 39,668 psi | 66% | 2621 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 34,330 psi | 57% | 2477 fps | 95.2% |
| Ramshot TAC | <<locked>> | 82% | 44,367 psi | 74% | 2618 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,640 psi | 68% | 2585 fps | 97.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,136 psi | 75% | 2618 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,049 psi | 43% | 1545 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,804 psi | 78% | 2657 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 47,195 psi | 78% | 2680 fps | 95.4% |
| ReloadSwiss RS 52 | 38.9 gr | 80% | 36,695 psi | 61% | 2575 fps | 95.7% |
| ReloadSwiss RS 60 | 39.5 gr | 80% | 30,371 psi | 50% | 2434 fps | 96.6% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 39,146 psi | 65% | 2638 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,598 psi | 71% | 2700 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 42,786 psi | 71% | 2569 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 37,014 psi | 61% | 2467 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 32,503 psi | 54% | 2421 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 44,425 psi | 74% | 2631 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,145 psi | 63% | 2536 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 35,099 psi | 58% | 2448 fps | 97.3% |
| Shooters World SW4350 | <<locked>> | 98% | 47,456 psi | 79% | 2703 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,400 psi | 82% | 2674 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 35,810 psi | 59% | 2520 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,487 psi | 82% | 2664 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,595 psi | 66% | 2533 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,232 psi | 64% | 2523 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,480 psi | 67% | 2480 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,315 psi | 55% | 2349 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 50,256 psi | 83% | 2680 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 44,744 psi | 74% | 2648 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 39,914 psi | 66% | 2484 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 39,233 psi | 65% | 2536 fps | 97% |
| Somchem S355 | <<locked>> | 80% | 31,401 psi | 52% | 2379 fps | 95% |
| Somchem S365 | <<locked>> | 88% | 29,225 psi | 49% | 2405 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 45,876 psi | 76% | 2552 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,611 psi | 67% | 2484 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,013 psi | 60% | 2461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,753 psi | 61% | 2464 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 29,718 psi | 49% | 2316 fps | 95.9% |
| Vihtavuori N160 | <<locked>> | 92% | 38,972 psi | 65% | 2569 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 41,713 psi | 69% | 2569 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 35,520 psi | 59% | 2454 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 94% | 40,727 psi | 68% | 2625 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,634 psi | 54% | 2395 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 40,669 psi | 68% | 2605 fps | 99.2% |
| Winchester 760 | <<locked>> | 98% | 48,646 psi | 81% | 2785 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,376 psi | 62% | 2526 fps | 97.2% |
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 107 powders for 7 mm-08 Rem. loaded with the .284 | 139gr | Hornady InterLock FP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,920 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,920 fps. Accurate 4350 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.284" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 7 mm-08 Rem. with the .284 | 139gr | Hornady InterLock FP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-26, Hodgdon H4350, IMR 4350 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.