Load Specifications
Load data in caliber .30-06 Spring. with .308 | 180gr | Speer Hot-Cor 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, Alliant Reloder-17 and ReloadSwiss RS 70.
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>> | 82% | 50,792 psi | 86% | 2520 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 52,330 psi | 89% | 2582 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 52,417 psi | 89% | 2631 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 52,736 psi | 90% | 2582 fps | 96.5% |
| Accurate 4064 | <<locked>> | 90% | 52,330 psi | 89% | 2628 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 51,590 psi | 88% | 2697 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 52,837 psi | 90% | 2651 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 50,720 psi | 86% | 2605 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 51,996 psi | 89% | 2608 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 52,707 psi | 90% | 2589 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 52,243 psi | 89% | 2759 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 50,589 psi | 86% | 2628 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 51,169 psi | 87% | 2648 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 50,053 psi | 85% | 2703 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 94% | 50,647 psi | 86% | 2733 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,898 psi | 65% | 2500 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,264 psi | 72% | 2648 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 52,475 psi | 89% | 2664 fps | 99.5% |
| Bofors RP3 | <<locked>> | 90% | 50,662 psi | 86% | 2638 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 51,343 psi | 87% | 2608 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,734 psi | 86% | 2549 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 51,097 psi | 87% | 2635 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,982 psi | 90% | 2726 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 51,895 psi | 88% | 2592 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 51,851 psi | 88% | 2651 fps | 99% |
| Hodgdon H414 | <<locked>> | 94% | 52,649 psi | 90% | 2717 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 50,169 psi | 85% | 2615 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,371 psi | 84% | 2635 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 52,692 psi | 90% | 2697 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 51,764 psi | 88% | 2723 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,346 psi | 60% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 50,270 psi | 86% | 2602 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 51,721 psi | 88% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 52,518 psi | 89% | 2625 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 92% | 52,199 psi | 89% | 2595 fps | 97.3% |
| IMR 4350 | <<locked>> | 98% | 51,300 psi | 87% | 2631 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 53,098 psi | 90% | 2638 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,340 psi | 79% | 2598 fps | 98.7% |
| IMR 4895 | <<locked>> | 88% | 52,475 psi | 89% | 2674 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 51,996 psi | 89% | 2608 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 52,417 psi | 89% | 2631 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,663 psi | 90% | 2585 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 53,142 psi | 90% | 2635 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 52,402 psi | 89% | 2635 fps | 98.5% |
| Lovex S070 | <<locked>> | 98% | 53,098 psi | 90% | 2664 fps | 97.7% |
| Norma 201 | <<locked>> | 86% | 51,822 psi | 88% | 2605 fps | 100% |
| Norma 202 | <<locked>> | 86% | 52,054 psi | 89% | 2605 fps | 100% |
| Norma 203B | <<locked>> | 88% | 50,401 psi | 86% | 2635 fps | 99.8% |
| Norma URP | <<locked>> | 98% | 50,865 psi | 87% | 2687 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 88% | 50,488 psi | 86% | 2654 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 49,748 psi | 85% | 2677 fps | 97.8% |
| Ramshot TAC | <<locked>> | 84% | 52,170 psi | 89% | 2621 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 51,822 psi | 88% | 2641 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,837 psi | 90% | 2608 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,882 psi | 61% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 52,127 psi | 89% | 2631 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 51,068 psi | 87% | 2703 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 50,691 psi | 86% | 2740 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 51,358 psi | 87% | 2717 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 51,169 psi | 87% | 2740 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 84% | 52,736 psi | 90% | 2585 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 52,286 psi | 89% | 2602 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 50,792 psi | 86% | 2635 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 51,343 psi | 87% | 2608 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,402 psi | 89% | 2635 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 52,417 psi | 89% | 2631 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 53,142 psi | 90% | 2635 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 53,098 psi | 90% | 2664 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 52,243 psi | 89% | 2687 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 50,604 psi | 86% | 2602 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 51,271 psi | 87% | 2625 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 50,096 psi | 85% | 2507 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 50,140 psi | 85% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 52,663 psi | 90% | 2589 fps | 97.3% |
| Somchem S321 | <<locked>> | 82% | 53,055 psi | 90% | 2638 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,794 psi | 90% | 2549 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,067 psi | 85% | 2595 fps | 99.7% |
| Somchem S355 | <<locked>> | 92% | 51,242 psi | 87% | 2631 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,617 psi | 83% | 2687 fps | 100% |
| Unknown powder | <<locked>> | 96% | 52,112 psi | 89% | 2694 fps | 99% |
| Vihtavuori N130 | <<locked>> | 82% | 52,272 psi | 89% | 2503 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 53,113 psi | 90% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 51,938 psi | 88% | 2572 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 51,953 psi | 88% | 2579 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 52,402 psi | 89% | 2615 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 52,576 psi | 90% | 2667 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 82% | 51,503 psi | 88% | 2612 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 51,605 psi | 88% | 2605 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 52,939 psi | 90% | 2713 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,162 psi | 70% | 2572 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 50,372 psi | 86% | 2618 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 52,678 psi | 90% | 2661 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 52,649 psi | 90% | 2717 fps | 97.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,968 psi | 58% | 2493 fps | 98.1% |
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% | 47,659 psi | 81% | 2477 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,350 psi | 69% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,658 psi | 78% | 2533 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 46,224 psi | 79% | 2480 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 38,174 psi | 65% | 2402 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,997 psi | 58% | 2379 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 43,961 psi | 75% | 2510 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 37,260 psi | 63% | 2365 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,021 psi | 78% | 2516 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 46,151 psi | 79% | 2503 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,769 psi | 68% | 2533 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,840 psi | 63% | 2388 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,697 psi | 68% | 2448 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,635 psi | 59% | 2395 fps | 95.7% |
| Alliant Reloder-17 | 47.4 gr | 80% | 31,865 psi | 54% | 2352 fps | 96.4% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,762 psi | 51% | 2300 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,579 psi | 62% | 2523 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,004 psi | 73% | 2510 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 36,347 psi | 62% | 2388 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 45,411 psi | 77% | 2510 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,790 psi | 81% | 2503 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,643 psi | 76% | 2533 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,182 psi | 84% | 2667 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 80% | 48,675 psi | 83% | 2546 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,246 psi | 63% | 2388 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 88% | 42,859 psi | 73% | 2549 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 44,338 psi | 75% | 2520 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,805 psi | 51% | 2247 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,782 psi | 64% | 2441 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 92% | 44,933 psi | 76% | 2605 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 45% | 1447 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,421 psi | 67% | 2415 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 40,190 psi | 68% | 2451 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,492 psi | 62% | 2343 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 86% | 43,787 psi | 75% | 2454 fps | 95.3% |
| IMR 4350 | <<locked>> | 94% | 45,397 psi | 77% | 2536 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,338 psi | 75% | 2493 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 33,852 psi | 58% | 2359 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 40,640 psi | 69% | 2474 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 46,021 psi | 78% | 2516 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 42,815 psi | 73% | 2487 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,903 psi | 75% | 2444 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 39,030 psi | 66% | 2402 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 38,667 psi | 66% | 2395 fps | 95.4% |
| Lovex S070 | <<locked>> | 92% | 44,179 psi | 75% | 2520 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 43,062 psi | 73% | 2464 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 43,192 psi | 74% | 2470 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,117 psi | 67% | 2438 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 34,505 psi | 59% | 2382 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 38,435 psi | 65% | 2444 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 41,002 psi | 70% | 2523 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 45,832 psi | 78% | 2520 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,136 psi | 77% | 2536 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,530 psi | 84% | 2559 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,658 psi | 45% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,219 psi | 68% | 2425 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,408 psi | 70% | 2539 fps | 98.3% |
| ReloadSwiss RS 60 | 47.4 gr | 80% | 33,924 psi | 58% | 2418 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,997 psi | 58% | 2398 fps | 95% |
| ReloadSwiss RS 70 | 54.1 gr | 90% | 39,102 psi | 67% | 2510 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 46,978 psi | 80% | 2500 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,828 psi | 70% | 2415 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 34,360 psi | 58% | 2339 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 45,411 psi | 77% | 2510 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,667 psi | 66% | 2395 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,815 psi | 73% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,030 psi | 66% | 2402 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 92% | 44,179 psi | 75% | 2520 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,186 psi | 60% | 2382 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,961 psi | 75% | 2493 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,279 psi | 72% | 2477 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,382 psi | 76% | 2418 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,854 psi | 63% | 2297 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,236 psi | 74% | 2438 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 49,647 psi | 85% | 2589 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,034 psi | 75% | 2421 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,801 psi | 75% | 2493 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 35,259 psi | 60% | 2346 fps | 97.7% |
| Somchem S365 | <<locked>> | 82% | 27,122 psi | 46% | 2231 fps | 95.9% |
| Unknown powder | <<locked>> | 86% | 37,507 psi | 64% | 2434 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 49,110 psi | 84% | 2461 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,800 psi | 71% | 2369 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,306 psi | 69% | 2402 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,466 psi | 69% | 2402 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,023 psi | 51% | 2208 fps | 97.4% |
| Vihtavuori N160 | <<locked>> | 84% | 35,288 psi | 60% | 2362 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 48,327 psi | 82% | 2562 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 39,914 psi | 68% | 2418 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,592 psi | 61% | 2402 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 31,778 psi | 54% | 2369 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,704 psi | 51% | 2211 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 49,168 psi | 84% | 2608 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 42,859 psi | 73% | 2549 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,791 psi | 51% | 2369 fps | 95.7% |
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 94 powders for .30-06 Spring. loaded with the .308 | 180gr | Speer Hot-Cor. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,759 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,759 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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 Reloder-17, ReloadSwiss RS 70 rank at the top here: for .30-06 Spring. with the .308 | 180gr | Speer Hot-Cor 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.