Load Specifications
Load data in caliber .30-06 Spring. with .308 | 168gr | Reichenberg HDB Universal 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>> | 86% | 52,127 psi | 89% | 2631 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 50,212 psi | 85% | 2644 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 52,895 psi | 90% | 2687 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 52,199 psi | 89% | 2710 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 52,837 psi | 90% | 2730 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,660 psi | 83% | 2736 fps | 98.4% |
| ADI AR 2206H | <<locked>> | 88% | 51,387 psi | 87% | 2717 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 94% | 52,489 psi | 89% | 2713 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,734 psi | 86% | 2674 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 50,430 psi | 86% | 2657 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 52,069 psi | 89% | 2772 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 50,517 psi | 86% | 2812 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 51,880 psi | 88% | 2736 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 51,967 psi | 88% | 2635 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 52,475 psi | 89% | 2753 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,138 psi | 82% | 2746 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 52,359 psi | 89% | 2844 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 50,995 psi | 87% | 2723 fps | 98.8% |
| Bofors RP3 | <<locked>> | 94% | 52,025 psi | 89% | 2746 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 52,779 psi | 90% | 2707 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 52,823 psi | 90% | 2664 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 52,939 psi | 90% | 2749 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 51,097 psi | 87% | 2785 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 82% | 51,126 psi | 87% | 2674 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 52,170 psi | 89% | 2697 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 49,879 psi | 85% | 2700 fps | 98.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 52,475 psi | 89% | 2792 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 88% | 51,822 psi | 88% | 2726 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,063 psi | 75% | 2628 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 50,604 psi | 86% | 2753 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,621 psi | 59% | 1660 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 49,864 psi | 85% | 2680 fps | 99.5% |
| IMR 3031 | <<locked>> | 88% | 51,068 psi | 87% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 51,837 psi | 88% | 2697 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,460 psi | 89% | 2677 fps | 96.3% |
| IMR 4198 | <<locked>> | 82% | 52,620 psi | 90% | 2602 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 51,750 psi | 88% | 2694 fps | 96.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,528 psi | 79% | 2684 fps | 98.1% |
| IMR 4895 | <<locked>> | 90% | 50,473 psi | 86% | 2733 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 86% | 50,734 psi | 86% | 2674 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 50,314 psi | 86% | 2657 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 50,386 psi | 86% | 2694 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 51,677 psi | 88% | 2651 fps | 99.5% |
| Lovex S062 | <<locked>> | 92% | 51,227 psi | 87% | 2694 fps | 99.9% |
| Lovex S065 | <<locked>> | 98% | 50,328 psi | 86% | 2680 fps | 97.3% |
| Lovex S070ᴾ | <<locked>> | 100% | 50,923 psi | 87% | 2707 fps | 96.4% |
| Norma 201 | <<locked>> | 88% | 49,922 psi | 85% | 2664 fps | 99.8% |
| Norma 202 | <<locked>> | 88% | 50,546 psi | 86% | 2674 fps | 100% |
| Norma 203B | <<locked>> | 92% | 51,648 psi | 88% | 2740 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 48,457 psi | 82% | 2730 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 92% | 51,982 psi | 88% | 2762 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 47,703 psi | 81% | 2720 fps | 96.4% |
| Ramshot TAC | <<locked>> | 86% | 50,966 psi | 87% | 2684 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,082 psi | 85% | 2700 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 84% | 51,663 psi | 88% | 2674 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,041 psi | 60% | 1703 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,299 psi | 86% | 2661 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 50,502 psi | 86% | 2684 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 52,402 psi | 89% | 2812 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 52,112 psi | 89% | 2848 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,588 psi | 83% | 2759 fps | 98.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,313 psi | 84% | 2779 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 86% | 50,923 psi | 87% | 2651 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 50,401 psi | 86% | 2661 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 96% | 51,517 psi | 88% | 2730 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 98% | 52,779 psi | 90% | 2707 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 50,328 psi | 86% | 2680 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 50,386 psi | 86% | 2694 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 51,227 psi | 87% | 2694 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 50,923 psi | 87% | 2707 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,270 psi | 86% | 2743 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 53,026 psi | 90% | 2657 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 52,315 psi | 89% | 2710 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 53,084 psi | 90% | 2736 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 51,953 psi | 88% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 51,996 psi | 89% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 50,662 psi | 86% | 2635 fps | 96% |
| Somchem S321 | <<locked>> | 84% | 51,517 psi | 88% | 2703 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 51,140 psi | 87% | 2615 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,054 psi | 89% | 2707 fps | 99.5% |
| Somchem S355 | <<locked>> | 96% | 52,460 psi | 89% | 2736 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,047 psi | 73% | 2680 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 84% | 51,808 psi | 88% | 2585 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 52,112 psi | 89% | 2605 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 52,924 psi | 90% | 2680 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 50,865 psi | 87% | 2651 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 50,444 psi | 86% | 2667 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,140 psi | 87% | 2733 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 86% | 50,995 psi | 87% | 2671 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 52,504 psi | 89% | 2694 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,082 psi | 85% | 2736 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,795 psi | 61% | 2543 fps | 95.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,170 psi | 89% | 2720 fps | 99.8% |
| Winchester 748 | <<locked>> | 86% | 50,386 psi | 86% | 2717 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 52,475 psi | 89% | 2792 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 52,823 psi | 90% | 2743 fps | 99.8% |
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% | 43,018 psi | 73% | 2497 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,094 psi | 80% | 2598 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,230 psi | 60% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,279 psi | 72% | 2556 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 33,330 psi | 57% | 2392 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 36,535 psi | 62% | 2513 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 39,769 psi | 68% | 2510 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 35,926 psi | 61% | 2411 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,887 psi | 71% | 2526 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 41,133 psi | 70% | 2523 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,733 psi | 83% | 2720 fps | 99.5% |
| Alliant Power Pro 2000-MR | 47.1 gr | 80% | 35,708 psi | 61% | 2513 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,793 psi | 56% | 2375 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,979 psi | 83% | 2595 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,578 psi | 61% | 2438 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 92% | 37,521 psi | 64% | 2533 fps | 95.6% |
| Alliant Reloder-17 | 48.7 gr | 84% | 32,358 psi | 55% | 2438 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,667 psi | 66% | 2503 fps | 96.1% |
| Bofors RP3 | <<locked>> | 80% | 31,981 psi | 54% | 2372 fps | 96.3% |
| Bofors RP7 | <<locked>> | 96% | 49,443 psi | 84% | 2654 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,801 psi | 75% | 2520 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,914 psi | 68% | 2533 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,295 psi | 75% | 2671 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 80% | 47,790 psi | 81% | 2625 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,660 psi | 83% | 2648 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,174 psi | 65% | 2487 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 98% | 48,878 psi | 83% | 2736 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 40,059 psi | 68% | 2523 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,053 psi | 55% | 2379 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,853 psi | 61% | 2484 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,701 psi | 44% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,537 psi | 66% | 2477 fps | 97.7% |
| IMR 3031 | <<locked>> | 80% | 39,233 psi | 67% | 2526 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,491 psi | 60% | 2398 fps | 95.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,255 psi | 84% | 2625 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 49,574 psi | 84% | 2559 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 48,646 psi | 83% | 2641 fps | 95.4% |
| IMR 4831 | <<locked>> | 92% | 35,578 psi | 61% | 2474 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 36,405 psi | 62% | 2470 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 80% | 41,887 psi | 71% | 2526 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 46,862 psi | 80% | 2605 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 38,101 psi | 65% | 2487 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 40,379 psi | 69% | 2457 fps | 97.7% |
| Lovex S062 | <<locked>> | 80% | 35,099 psi | 60% | 2402 fps | 97.6% |
| Lovex S065 | <<locked>> | 92% | 41,814 psi | 71% | 2533 fps | 95.3% |
| Lovex S070 | <<locked>> | 98% | 47,761 psi | 81% | 2657 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 38,725 psi | 66% | 2464 fps | 98.5% |
| Norma 202 | <<locked>> | 80% | 38,899 psi | 66% | 2477 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 34,954 psi | 60% | 2431 fps | 96.2% |
| Norma URP | <<locked>> | 92% | 37,173 psi | 63% | 2516 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 34,272 psi | 58% | 2431 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 98% | 44,759 psi | 76% | 2667 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 41,640 psi | 71% | 2516 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,915 psi | 70% | 2539 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,165 psi | 77% | 2566 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,933 psi | 44% | 1519 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,920 psi | 80% | 2605 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,222 psi | 75% | 2575 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,796 psi | 63% | 2530 fps | 96.2% |
| ReloadSwiss RS 60 | 46.4 gr | 80% | 30,211 psi | 51% | 2392 fps | 97.1% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 39,320 psi | 67% | 2592 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,219 psi | 68% | 2602 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 42,264 psi | 72% | 2510 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,869 psi | 63% | 2418 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 30,153 psi | 51% | 2320 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 96% | 49,443 psi | 84% | 2654 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,814 psi | 71% | 2533 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,101 psi | 65% | 2487 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 35,099 psi | 60% | 2402 fps | 97.6% |
| Shooters World SW4350 | <<locked>> | 98% | 47,761 psi | 81% | 2657 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,562 psi | 57% | 2421 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,937 psi | 85% | 2615 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,653 psi | 68% | 2490 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,247 psi | 65% | 2477 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,567 psi | 69% | 2438 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,373 psi | 57% | 2306 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,384 psi | 81% | 2582 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 44,875 psi | 76% | 2595 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 39,943 psi | 68% | 2434 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,363 psi | 67% | 2490 fps | 97.4% |
| Somchem S355 | <<locked>> | 80% | 31,270 psi | 53% | 2333 fps | 95.4% |
| Somchem S365 | <<locked>> | 88% | 29,022 psi | 49% | 2356 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 46,064 psi | 78% | 2503 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,814 psi | 69% | 2438 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,042 psi | 61% | 2415 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,898 psi | 63% | 2418 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,704 psi | 51% | 2277 fps | 96.4% |
| Vihtavuori N160 | <<locked>> | 90% | 36,724 psi | 63% | 2474 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 41,611 psi | 71% | 2516 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 35,360 psi | 60% | 2402 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 92% | 38,363 psi | 65% | 2526 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 98% | 33,678 psi | 57% | 2493 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,547 psi | 55% | 2349 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 40,843 psi | 70% | 2556 fps | 99.4% |
| Winchester 760 | <<locked>> | 96% | 46,064 psi | 78% | 2687 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,550 psi | 64% | 2480 fps | 97.6% |
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 | 168gr | Reichenberg HDB Universal. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,848 fps; across all powders the maximum-charge window runs from 1,660 fps to 2,848 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 59–90 %, leaving at least 10 % headroom. The 168.0 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, Hodgdon H414 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 | 168gr | Reichenberg HDB Universal 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.