Load Specifications
Load data in caliber 7 x 64 Brenneke with .284 | 152gr | CutEdge Maximus bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Hodgdon Superformance.
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.
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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>> | 82% | 51,938 psi | 86% | 2602 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,461 psi | 89% | 2664 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 52,011 psi | 86% | 2684 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 53,345 psi | 89% | 2674 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 40,988 psi | 68% | 2569 fps | 96.3% |
| Accurate 4064 | <<locked>> | 90% | 53,969 psi | 90% | 2717 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,012 psi | 90% | 2802 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 84% | 51,300 psi | 85% | 2697 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 52,373 psi | 87% | 2700 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 53,708 psi | 89% | 2700 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 51,082 psi | 85% | 2628 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,462 psi | 90% | 2871 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 52,243 psi | 87% | 2723 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 52,649 psi | 87% | 2740 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 51,750 psi | 86% | 2802 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 53,026 psi | 88% | 2841 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,378 psi | 65% | 2602 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,903 psi | 73% | 2756 fps | 98.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 51,024 psi | 85% | 2713 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 52,692 psi | 88% | 2736 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 52,794 psi | 88% | 2707 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 52,025 psi | 86% | 2638 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 52,881 psi | 88% | 2726 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 53,751 psi | 89% | 2753 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 53,229 psi | 88% | 2799 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 94% | 53,983 psi | 90% | 2762 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 84% | 51,822 psi | 86% | 2710 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,459 psi | 85% | 2733 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 51,198 psi | 85% | 2740 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 53,925 psi | 90% | 2835 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,491 psi | 59% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 53,171 psi | 88% | 2713 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 51,663 psi | 86% | 2690 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 51,808 psi | 86% | 2684 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 51,634 psi | 86% | 2661 fps | 97.6% |
| IMR 4350 | <<locked>> | 98% | 53,301 psi | 89% | 2736 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 51,561 psi | 86% | 2687 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,302 psi | 90% | 2792 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 54,012 psi | 90% | 2769 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 53,708 psi | 89% | 2700 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,070 psi | 90% | 2720 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,157 psi | 90% | 2680 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 51,561 psi | 86% | 2680 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,215 psi | 90% | 2733 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 51,648 psi | 86% | 2717 fps | 97.9% |
| Norma 201 | <<locked>> | 86% | 53,011 psi | 88% | 2690 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,896 psi | 90% | 2697 fps | 100% |
| Norma 203B | <<locked>> | 88% | 51,880 psi | 86% | 2726 fps | 99.9% |
| Norma 204 | <<locked>> | 98% | 53,780 psi | 89% | 2782 fps | 96.3% |
| Norma URP | <<locked>> | 98% | 53,040 psi | 88% | 2789 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 88% | 52,533 psi | 87% | 2756 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 98% | 51,880 psi | 86% | 2785 fps | 98.6% |
| Ramshot TAC | <<locked>> | 84% | 53,969 psi | 90% | 2723 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 53,374 psi | 89% | 2736 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,418 psi | 90% | 2703 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,853 psi | 60% | 1706 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,940 psi | 90% | 2733 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 53,040 psi | 88% | 2802 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 52,721 psi | 88% | 2838 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 53,766 psi | 89% | 2825 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 53,185 psi | 88% | 2848 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 84% | 53,925 psi | 90% | 2671 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,679 psi | 89% | 2694 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 52,576 psi | 87% | 2726 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 52,794 psi | 88% | 2707 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,215 psi | 90% | 2733 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,070 psi | 90% | 2720 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 51,561 psi | 86% | 2680 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 51,648 psi | 86% | 2717 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,346 psi | 90% | 2789 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 52,040 psi | 86% | 2697 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 52,895 psi | 88% | 2720 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 51,430 psi | 85% | 2589 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 51,663 psi | 86% | 2589 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,215 psi | 90% | 2684 fps | 98% |
| Somchem S335 | <<locked>> | 86% | 53,998 psi | 90% | 2631 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 52,011 psi | 86% | 2690 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 53,084 psi | 88% | 2730 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,952 psi | 85% | 2789 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,137 psi | 78% | 2671 fps | 96.2% |
| Vihtavuori N133 | <<locked>> | 84% | 51,793 psi | 86% | 2575 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,650 psi | 89% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,317 psi | 90% | 2674 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,433 psi | 90% | 2707 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 51,996 psi | 86% | 2733 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 53,867 psi | 89% | 2697 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 52,489 psi | 87% | 2671 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 51,068 psi | 85% | 2740 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,178 psi | 72% | 2674 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 52,359 psi | 87% | 2717 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,085 psi | 90% | 2746 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 53,577 psi | 89% | 2805 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,143 psi | 58% | 2605 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 52,881 psi | 88% | 2730 fps | 100% |
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% | 48,675 psi | 81% | 2556 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,017 psi | 68% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,776 psi | 81% | 2635 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,818 psi | 78% | 2569 fps | 95.8% |
| Accurate 3100 | <<locked>> | 98% | 38,232 psi | 64% | 2516 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 38,812 psi | 64% | 2477 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,880 psi | 55% | 2411 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 44,991 psi | 75% | 2595 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 38,261 psi | 64% | 2448 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,152 psi | 78% | 2602 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 47,732 psi | 79% | 2582 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,060 psi | 68% | 2628 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,014 psi | 63% | 2474 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,669 psi | 68% | 2533 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,475 psi | 56% | 2434 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,576 psi | 54% | 2438 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,732 psi | 48% | 2336 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,389 psi | 59% | 2566 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,266 psi | 74% | 2598 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 37,492 psi | 62% | 2474 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 43,772 psi | 73% | 2552 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,936 psi | 81% | 2589 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,050 psi | 77% | 2621 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,276 psi | 64% | 2477 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 40,683 psi | 68% | 2575 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 90% | 47,645 psi | 79% | 2657 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 45,440 psi | 75% | 2605 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,601 psi | 48% | 2277 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,684 psi | 69% | 2582 fps | 99.6% |
| Hodgdon Superformance | 51.2 gr | 90% | 43,381 psi | 72% | 2651 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,281 psi | 44% | 1486 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,729 psi | 73% | 2559 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 45,165 psi | 75% | 2595 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,176 psi | 67% | 2480 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,641 psi | 71% | 2503 fps | 95.6% |
| IMR 4350 | <<locked>> | 92% | 43,947 psi | 73% | 2579 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,902 psi | 71% | 2536 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 31,952 psi | 53% | 2375 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 41,684 psi | 69% | 2559 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 47,152 psi | 78% | 2602 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,237 psi | 73% | 2575 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,049 psi | 75% | 2533 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 40,030 psi | 67% | 2484 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 37,086 psi | 62% | 2428 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 39,943 psi | 66% | 2507 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 43,874 psi | 73% | 2546 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 44,556 psi | 74% | 2556 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,001 psi | 66% | 2520 fps | 98.8% |
| Norma 204 | <<locked>> | 96% | 50,111 psi | 83% | 2723 fps | 95.5% |
| Norma URP | <<locked>> | 84% | 33,315 psi | 55% | 2415 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 39,755 psi | 66% | 2536 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 39,885 psi | 66% | 2569 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 47,021 psi | 78% | 2612 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,586 psi | 77% | 2628 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,952 psi | 85% | 2651 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,672 psi | 44% | 1526 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,827 psi | 65% | 2464 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,207 psi | 72% | 2638 fps | 98.9% |
| ReloadSwiss RS 60 | 43 gr | 80% | 34,766 psi | 58% | 2503 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,056 psi | 58% | 2487 fps | 96% |
| ReloadSwiss RS 70 | 47 gr | 86% | 35,273 psi | 59% | 2493 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 47,906 psi | 80% | 2582 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,930 psi | 70% | 2500 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 35,230 psi | 59% | 2418 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 43,772 psi | 73% | 2552 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 37,086 psi | 62% | 2428 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,237 psi | 73% | 2575 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,030 psi | 67% | 2484 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 39,943 psi | 66% | 2507 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,390 psi | 60% | 2470 fps | 97.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,295 psi | 75% | 2585 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,685 psi | 73% | 2566 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,469 psi | 76% | 2500 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,840 psi | 63% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,655 psi | 69% | 2477 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 44,889 psi | 75% | 2500 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,063 psi | 75% | 2582 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 35,984 psi | 60% | 2421 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 26,005 psi | 43% | 2257 fps | 95.9% |
| Somchem S385 | <<locked>> | 98% | 44,193 psi | 73% | 2618 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 45,890 psi | 76% | 2493 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,495 psi | 69% | 2480 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,134 psi | 70% | 2493 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,345 psi | 57% | 2365 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 32,721 psi | 54% | 2372 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 47,398 psi | 79% | 2602 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,437 psi | 67% | 2480 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 34,229 psi | 57% | 2421 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 30,879 psi | 51% | 2408 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,269 psi | 50% | 2290 fps | 96.5% |
| Winchester 748 | <<locked>> | 80% | 46,978 psi | 78% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 40,930 psi | 68% | 2582 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,747 psi | 48% | 2408 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,221 psi | 72% | 2572 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 113 powders for 7 x 64 Brenneke loaded with the .284 | 152gr | CutEdge Maximus. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,871 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,871 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 152.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, ADI AR 2213 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, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for 7 x 64 Brenneke with the .284 | 152gr | CutEdge Maximus they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Alliant Reloder-22, Alliant Reloder-25 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.