Load Specifications
Load data in caliber .30-06 Spring. with .308 | 180gr | NorthFork Bonded Core bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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>> | 84% | 51,750 psi | 88% | 2520 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 49,734 psi | 85% | 2539 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 51,808 psi | 88% | 2598 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 53,127 psi | 90% | 2575 fps | 96.2% |
| Accurate 4064 | <<locked>> | 92% | 52,924 psi | 90% | 2621 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,127 psi | 89% | 2690 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 86% | 50,879 psi | 87% | 2605 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 92% | 51,909 psi | 88% | 2608 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 50,038 psi | 85% | 2562 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 50,169 psi | 85% | 2546 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 50,024 psi | 85% | 2703 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 51,372 psi | 87% | 2625 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 51,953 psi | 88% | 2641 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,647 psi | 86% | 2694 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 51,619 psi | 88% | 2730 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,172 psi | 62% | 2444 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,871 psi | 68% | 2575 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 50,270 psi | 86% | 2615 fps | 99.1% |
| Bofors RP3 | <<locked>> | 92% | 51,793 psi | 88% | 2641 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 52,228 psi | 89% | 2602 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 51,924 psi | 88% | 2549 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 52,228 psi | 89% | 2635 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 50,314 psi | 86% | 2671 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 92% | 52,881 psi | 90% | 2648 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 98% | 51,808 psi | 88% | 2687 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 96% | 52,968 psi | 90% | 2651 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 86% | 51,387 psi | 87% | 2618 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,963 psi | 80% | 2582 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 50,241 psi | 86% | 2644 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 98% | 52,808 psi | 90% | 2717 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,157 psi | 60% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 52,504 psi | 89% | 2618 fps | 99.9% |
| IMR 3031 | <<locked>> | 86% | 50,821 psi | 87% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 51,256 psi | 87% | 2589 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 51,488 psi | 88% | 2566 fps | 96.8% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,330 psi | 89% | 2628 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 51,068 psi | 87% | 2589 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,574 psi | 84% | 2635 fps | 99% |
| IMR 4895 | <<locked>> | 88% | 50,183 psi | 85% | 2625 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 84% | 50,038 psi | 85% | 2562 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 53,127 psi | 90% | 2592 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 50,082 psi | 85% | 2585 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 50,821 psi | 87% | 2543 fps | 99.7% |
| Lovex S062 | <<locked>> | 90% | 50,923 psi | 87% | 2589 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 50,270 psi | 86% | 2582 fps | 97.9% |
| Lovex S070 | <<locked>> | 98% | 50,792 psi | 86% | 2612 fps | 96.9% |
| Norma 201 | <<locked>> | 88% | 52,823 psi | 90% | 2602 fps | 100% |
| Norma 202 | <<locked>> | 86% | 50,038 psi | 85% | 2562 fps | 100% |
| Norma 203B | <<locked>> | 90% | 51,126 psi | 87% | 2631 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 51,692 psi | 88% | 2684 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 90% | 51,416 psi | 88% | 2654 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,560 psi | 86% | 2674 fps | 97.6% |
| Ramshot TAC | <<locked>> | 84% | 50,328 psi | 86% | 2575 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 86% | 53,040 psi | 90% | 2644 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 50,836 psi | 87% | 2562 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,694 psi | 61% | 1640 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 52,823 psi | 90% | 2592 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 50,067 psi | 85% | 2579 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 52,025 psi | 89% | 2700 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 51,605 psi | 88% | 2736 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,721 psi | 88% | 2710 fps | 99% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,315 psi | 89% | 2736 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 84% | 50,807 psi | 86% | 2543 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 50,328 psi | 86% | 2559 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 51,663 psi | 88% | 2631 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 96% | 52,228 psi | 89% | 2602 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 50,270 psi | 86% | 2582 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 50,082 psi | 85% | 2585 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 50,923 psi | 87% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 50,792 psi | 86% | 2612 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 49,748 psi | 85% | 2635 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 51,880 psi | 88% | 2602 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 52,446 psi | 89% | 2628 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 51,605 psi | 88% | 2510 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 51,242 psi | 87% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 50,343 psi | 86% | 2536 fps | 96.5% |
| Somchem S321 | <<locked>> | 82% | 50,879 psi | 87% | 2592 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 50,850 psi | 87% | 2507 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 51,285 psi | 87% | 2595 fps | 99.6% |
| Somchem S355 | <<locked>> | 94% | 52,112 psi | 89% | 2628 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,253 psi | 79% | 2635 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 51,343 psi | 87% | 2477 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 51,750 psi | 88% | 2497 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 52,765 psi | 90% | 2572 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 50,415 psi | 86% | 2543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 50,328 psi | 86% | 2566 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 50,952 psi | 87% | 2631 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 84% | 50,328 psi | 86% | 2562 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 52,025 psi | 89% | 2585 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 49,864 psi | 85% | 2635 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,827 psi | 66% | 2513 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 51,430 psi | 88% | 2615 fps | 99.9% |
| Winchester 748 | <<locked>> | 84% | 49,777 psi | 85% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 52,141 psi | 89% | 2690 fps | 97.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,227 psi | 55% | 2421 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 52,054 psi | 89% | 2631 fps | 99.9% |
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% | 45,919 psi | 78% | 2438 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,406 psi | 65% | 2362 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,107 psi | 77% | 2500 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,574 psi | 84% | 2523 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 36,332 psi | 62% | 2356 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 34,577 psi | 59% | 2379 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 42,032 psi | 72% | 2457 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 35,911 psi | 61% | 2320 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,048 psi | 75% | 2467 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 43,888 psi | 75% | 2461 fps | 100% |
| Alliant Power Pro 2000-MR | 46.1 gr | 80% | 38,174 psi | 65% | 2480 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,157 psi | 60% | 2339 fps | 97.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,797 psi | 64% | 2395 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,128 psi | 60% | 2388 fps | 95.4% |
| Alliant Reloder-17 | 45.4 gr | 80% | 30,472 psi | 52% | 2300 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,053 psi | 55% | 2346 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 98% | 37,144 psi | 63% | 2516 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,060 psi | 70% | 2457 fps | 97.4% |
| Bofors RP3 | <<locked>> | 80% | 34,650 psi | 59% | 2339 fps | 97.8% |
| Bofors RP7 | <<locked>> | 94% | 49,269 psi | 84% | 2556 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,079 psi | 78% | 2461 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,801 psi | 73% | 2490 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,804 psi | 80% | 2615 fps | 99% |
| Hodgdon H380 | <<locked>> | 80% | 35,708 psi | 61% | 2343 fps | 95% |
| Hodgdon H414 | <<locked>> | 94% | 45,484 psi | 77% | 2582 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 94% | 49,966 psi | 85% | 2605 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 42,366 psi | 72% | 2467 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,284 psi | 52% | 2247 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,392 psi | 65% | 2441 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 96% | 49,182 psi | 84% | 2657 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 45% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,785 psi | 69% | 2425 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 41,901 psi | 71% | 2467 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,681 psi | 64% | 2352 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,397 psi | 77% | 2464 fps | 95.3% |
| IMR 4350 | <<locked>> | 98% | 49,095 psi | 84% | 2579 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 45,310 psi | 77% | 2493 fps | 95.2% |
| IMR 4831 | <<locked>> | 88% | 33,634 psi | 57% | 2343 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 38,711 psi | 66% | 2425 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 44,048 psi | 75% | 2467 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 49,806 psi | 85% | 2546 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,046 psi | 70% | 2444 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 42,496 psi | 72% | 2405 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 37,521 psi | 64% | 2359 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 39,276 psi | 67% | 2392 fps | 95.2% |
| Lovex S070 | <<locked>> | 94% | 44,976 psi | 77% | 2516 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 41,278 psi | 70% | 2418 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 41,379 psi | 70% | 2425 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,188 psi | 63% | 2385 fps | 97.5% |
| Norma URP | <<locked>> | 88% | 34,983 psi | 60% | 2379 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 36,767 psi | 63% | 2398 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 41,800 psi | 71% | 2520 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 43,990 psi | 75% | 2470 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,337 psi | 74% | 2490 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,819 psi | 81% | 2516 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,585 psi | 45% | 1467 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,530 psi | 84% | 2546 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,874 psi | 75% | 2477 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,320 psi | 67% | 2487 fps | 97.5% |
| ReloadSwiss RS 60 | 45.4 gr | 80% | 32,416 psi | 55% | 2365 fps | 98.7% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,883 psi | 63% | 2448 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,987 psi | 68% | 2510 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 45,252 psi | 77% | 2461 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,349 psi | 67% | 2372 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 32,692 psi | 56% | 2290 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 94% | 49,269 psi | 84% | 2556 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,276 psi | 67% | 2392 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,046 psi | 70% | 2444 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 37,521 psi | 64% | 2359 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 44,976 psi | 77% | 2516 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,533 psi | 57% | 2329 fps | 96.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,206 psi | 72% | 2444 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,480 psi | 69% | 2428 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,815 psi | 73% | 2379 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,433 psi | 60% | 2254 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 44,019 psi | 75% | 2434 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 47,514 psi | 81% | 2539 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,351 psi | 72% | 2379 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,800 psi | 71% | 2444 fps | 98.4% |
| Somchem S355 | <<locked>> | 80% | 33,634 psi | 57% | 2297 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 27,688 psi | 47% | 2234 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 48,370 psi | 82% | 2438 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,033 psi | 73% | 2375 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,566 psi | 66% | 2362 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,320 psi | 67% | 2369 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,981 psi | 54% | 2241 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 34,461 psi | 59% | 2333 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 44,135 psi | 75% | 2464 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 37,797 psi | 64% | 2359 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 36,042 psi | 61% | 2385 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 94% | 32,024 psi | 55% | 2362 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,414 psi | 52% | 2215 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 43,613 psi | 74% | 2507 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 45,730 psi | 78% | 2585 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,269 psi | 52% | 2362 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,958 psi | 68% | 2434 fps | 98.6% |
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 96 powders for .30-06 Spring. loaded with the .308 | 180gr | NorthFork Bonded Core. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,736 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,736 fps. Accurate 4350 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:12.5 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .30-06 Spring. with the .308 | 180gr | NorthFork Bonded Core 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.