Load Specifications
Bullet Manufacturer:Federal
Bullet Weight:180 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.30-06 Spring. load data
Case Length (l3):2.494"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:68.2 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:14.0
Load data in caliber .30-06 Spring. with 308 | 180gr | Federal Fusion Soft Point bullet and 94 powders. The key underlying parameters are shown in the table above.
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>> | 84% | 50,517 psi | 86% | 2490 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 52,199 psi | 89% | 2559 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 51,677 psi | 88% | 2552 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 50,401 psi | 86% | 2569 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 51,503 psi | 88% | 2592 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,531 psi | 86% | 2651 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 52,924 psi | 90% | 2621 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 92% | 50,720 psi | 86% | 2575 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 86% | 51,967 psi | 88% | 2579 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 52,025 psi | 89% | 2559 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 51,953 psi | 88% | 2720 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 50,096 psi | 85% | 2595 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,691 psi | 86% | 2608 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,371 psi | 84% | 2654 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,328 psi | 86% | 2697 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,157 psi | 60% | 2408 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 52,373 psi | 89% | 2631 fps | 99.2% |
| Bofors RP3 | <<locked>> | 92% | 50,212 psi | 85% | 2605 fps | 99.9% |
| Bofors RP7 | <<locked>> | 96% | 51,169 psi | 87% | 2572 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,908 psi | 87% | 2523 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,981 psi | 87% | 2605 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 52,649 psi | 90% | 2694 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 82% | 52,707 psi | 90% | 2575 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 51,401 psi | 88% | 2612 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 98% | 50,473 psi | 86% | 2648 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 50,024 psi | 85% | 2585 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,629 psi | 78% | 2546 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 51,967 psi | 88% | 2657 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 51,488 psi | 88% | 2680 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,172 psi | 60% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 51,242 psi | 87% | 2585 fps | 99.8% |
| IMR 3031 | <<locked>> | 88% | 52,823 psi | 90% | 2618 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 50,009 psi | 85% | 2556 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,357 psi | 86% | 2533 fps | 96.3% |
| IMR 4350ᴾ | <<locked>> | 100% | 50,807 psi | 86% | 2589 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 53,040 psi | 90% | 2602 fps | 96.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,196 psi | 82% | 2602 fps | 98.6% |
| IMR 4895 | <<locked>> | 90% | 51,880 psi | 88% | 2638 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 86% | 51,967 psi | 88% | 2579 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 52,083 psi | 89% | 2566 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 52,112 psi | 89% | 2602 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 52,794 psi | 90% | 2556 fps | 99.7% |
| Lovex S062 | <<locked>> | 92% | 52,968 psi | 90% | 2602 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 51,895 psi | 88% | 2592 fps | 97.9% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,460 psi | 89% | 2621 fps | 97% |
| Norma 201 | <<locked>> | 88% | 51,764 psi | 88% | 2575 fps | 100% |
| Norma 202 | <<locked>> | 88% | 51,996 psi | 89% | 2575 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,864 psi | 85% | 2598 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 49,966 psi | 85% | 2644 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 90% | 49,980 psi | 85% | 2618 fps | 99.4% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,095 psi | 84% | 2635 fps | 97.1% |
| Ramshot TAC | <<locked>> | 86% | 52,417 psi | 89% | 2592 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 51,532 psi | 88% | 2608 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,661 psi | 85% | 2530 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,447 psi | 60% | 1624 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 51,721 psi | 88% | 2566 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 51,924 psi | 88% | 2592 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 50,560 psi | 86% | 2667 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 50,227 psi | 86% | 2700 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,067 psi | 85% | 2671 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,691 psi | 86% | 2694 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 86% | 52,953 psi | 90% | 2562 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 52,025 psi | 89% | 2569 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 50,096 psi | 85% | 2595 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 96% | 51,169 psi | 87% | 2572 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 51,895 psi | 88% | 2592 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 52,112 psi | 89% | 2602 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 52,968 psi | 90% | 2602 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,460 psi | 89% | 2621 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 51,938 psi | 88% | 2654 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 50,386 psi | 86% | 2566 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 51,285 psi | 87% | 2595 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,473 psi | 86% | 2480 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 53,127 psi | 90% | 2516 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 52,489 psi | 89% | 2552 fps | 96.7% |
| Somchem S321 | <<locked>> | 84% | 52,968 psi | 90% | 2608 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 52,852 psi | 90% | 2523 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 50,082 psi | 85% | 2562 fps | 99.4% |
| Somchem S355 | <<locked>> | 94% | 50,865 psi | 87% | 2598 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,628 psi | 76% | 2598 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 50,386 psi | 86% | 2451 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 50,604 psi | 86% | 2470 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 51,590 psi | 88% | 2546 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 52,460 psi | 89% | 2556 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 51,938 psi | 88% | 2575 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,721 psi | 90% | 2641 fps | 99% |
| Vihtavuori N530 | <<locked>> | 86% | 52,417 psi | 89% | 2579 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 50,807 psi | 86% | 2556 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,605 psi | 88% | 2644 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,594 psi | 64% | 2477 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,169 psi | 85% | 2582 fps | 99.8% |
| Winchester 748 | <<locked>> | 86% | 51,735 psi | 88% | 2618 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 50,473 psi | 86% | 2648 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 50,807 psi | 86% | 2602 fps | 99.8% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 44,686 psi | 76% | 2408 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,834 psi | 83% | 2510 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,188 psi | 63% | 2333 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,005 psi | 75% | 2470 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,186 psi | 60% | 2323 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,650 psi | 61% | 2392 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 41,205 psi | 70% | 2428 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 34,969 psi | 60% | 2287 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,250 psi | 74% | 2441 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 42,801 psi | 73% | 2434 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,072 psi | 63% | 2441 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,374 psi | 59% | 2310 fps | 97.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,043 psi | 63% | 2365 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,492 psi | 62% | 2405 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 82% | 31,546 psi | 54% | 2316 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,125 psi | 53% | 2306 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,132 psi | 68% | 2428 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 33,678 psi | 57% | 2306 fps | 97.3% |
| Bofors RP7 | <<locked>> | 94% | 47,863 psi | 81% | 2520 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,005 psi | 77% | 2431 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,495 psi | 71% | 2454 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,716 psi | 78% | 2585 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 49,226 psi | 84% | 2530 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,231 psi | 63% | 2362 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 96% | 47,239 psi | 80% | 2598 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 41,568 psi | 71% | 2441 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,372 psi | 53% | 2260 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,188 psi | 63% | 2405 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 96% | 47,921 psi | 82% | 2621 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,063 psi | 44% | 1417 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,784 psi | 68% | 2395 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 40,611 psi | 69% | 2438 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,651 psi | 62% | 2316 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,514 psi | 81% | 2487 fps | 95.6% |
| IMR 4350 | <<locked>> | 98% | 47,877 psi | 82% | 2543 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,905 psi | 80% | 2507 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 34,635 psi | 59% | 2352 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 37,927 psi | 65% | 2395 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 80% | 43,250 psi | 74% | 2441 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 48,472 psi | 83% | 2513 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,668 psi | 68% | 2408 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 41,510 psi | 71% | 2372 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 36,492 psi | 62% | 2326 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 40,770 psi | 69% | 2405 fps | 95.4% |
| Lovex S070 | <<locked>> | 96% | 46,311 psi | 79% | 2523 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 40,219 psi | 68% | 2385 fps | 99% |
| Norma 202 | <<locked>> | 80% | 40,524 psi | 69% | 2398 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,434 psi | 62% | 2356 fps | 97.1% |
| Norma URP | <<locked>> | 90% | 36,289 psi | 62% | 2395 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 35,694 psi | 61% | 2362 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 96% | 43,163 psi | 73% | 2530 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 43,120 psi | 73% | 2441 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,163 psi | 72% | 2454 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,601 psi | 79% | 2480 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,397 psi | 45% | 1450 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,428 psi | 82% | 2516 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,801 psi | 73% | 2444 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,174 psi | 65% | 2451 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 31,488 psi | 54% | 2326 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 35,708 psi | 61% | 2408 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,568 psi | 71% | 2526 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 44,324 psi | 75% | 2431 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,261 psi | 65% | 2339 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 31,720 psi | 54% | 2254 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 47,863 psi | 81% | 2520 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,770 psi | 69% | 2405 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,668 psi | 68% | 2408 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,492 psi | 62% | 2326 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 96% | 46,311 psi | 79% | 2523 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,706 psi | 56% | 2297 fps | 95.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,060 psi | 70% | 2411 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,537 psi | 67% | 2395 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,930 psi | 71% | 2349 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,635 psi | 59% | 2228 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,745 psi | 78% | 2451 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 46,514 psi | 79% | 2513 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,263 psi | 70% | 2352 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,901 psi | 70% | 2411 fps | 98.1% |
| Somchem S355 | <<locked>> | 80% | 32,663 psi | 56% | 2264 fps | 96.4% |
| Somchem S365 | <<locked>> | 84% | 26,803 psi | 46% | 2195 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 47,427 psi | 81% | 2411 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,134 psi | 72% | 2349 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,579 psi | 64% | 2333 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,261 psi | 65% | 2339 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,038 psi | 53% | 2208 fps | 97.3% |
| Vihtavuori N160 | <<locked>> | 88% | 35,752 psi | 61% | 2349 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 43,062 psi | 73% | 2431 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,854 psi | 63% | 2329 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 37,420 psi | 64% | 2402 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 96% | 33,011 psi | 56% | 2375 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,560 psi | 54% | 2231 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 42,264 psi | 72% | 2474 fps | 99.7% |
| Winchester 760 | <<locked>> | 94% | 44,440 psi | 76% | 2549 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,015 psi | 66% | 2402 fps | 98.3% |
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 | Federal Fusion Soft Point. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,720 fps; across all powders the maximum-charge window runs from 1,588 fps to 2,720 fps. Accurate 4350 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 60–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:14.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.