Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 167gr | MRR Green Hunting bullet and 96 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 Alliant Power Pro 2000-MR.
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: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 46,920 psi | 85% | 2664 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 48,153 psi | 87% | 2730 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 46,905 psi | 85% | 2723 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 49,705 psi | 90% | 2795 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 48,341 psi | 88% | 2713 fps | 95.8% |
| Accurate 4064 | <<locked>> | 92% | 46,920 psi | 85% | 2766 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,803 psi | 83% | 2828 fps | 99% |
| ADI AR 2206H | <<locked>> | 88% | 49,211 psi | 89% | 2805 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 47,340 psi | 86% | 2756 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 48,805 psi | 89% | 2762 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 48,153 psi | 87% | 2736 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 49,835 psi | 90% | 2861 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 48,399 psi | 88% | 2913 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 49,371 psi | 90% | 2825 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 46,949 psi | 85% | 2792 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,021 psi | 84% | 2844 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 98% | 49,763 psi | 90% | 2940 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 32,111 psi | 58% | 2575 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 48,791 psi | 89% | 2818 fps | 99.3% |
| Bofors RP3 | <<locked>> | 94% | 49,197 psi | 89% | 2835 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 47,326 psi | 86% | 2746 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 84% | 47,892 psi | 87% | 2703 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 47,094 psi | 85% | 2789 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 48,704 psi | 88% | 2881 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 82% | 49,298 psi | 89% | 2759 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 47,601 psi | 86% | 2795 fps | 98.7% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 49,821 psi | 90% | 2887 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 88% | 49,676 psi | 90% | 2818 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,872 psi | 76% | 2720 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 48,138 psi | 87% | 2844 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 47,514 psi | 86% | 2861 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,650 psi | 63% | 1703 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 48,124 psi | 87% | 2776 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 48,965 psi | 89% | 2802 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 49,835 psi | 90% | 2789 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 47,471 psi | 86% | 2717 fps | 96.5% |
| IMR 4350ᴾ | <<locked>> | 100% | 47,123 psi | 86% | 2769 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 96% | 49,748 psi | 90% | 2789 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,947 psi | 80% | 2779 fps | 98.7% |
| IMR 4895 | <<locked>> | 90% | 48,095 psi | 87% | 2825 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 48,805 psi | 89% | 2762 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 48,066 psi | 87% | 2743 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 47,906 psi | 87% | 2779 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 49,835 psi | 90% | 2740 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 49,124 psi | 89% | 2782 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 48,225 psi | 88% | 2776 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 48,718 psi | 88% | 2805 fps | 97.2% |
| Norma 201 | <<locked>> | 88% | 47,950 psi | 87% | 2753 fps | 100% |
| Norma 202 | <<locked>> | 88% | 48,501 psi | 88% | 2759 fps | 100% |
| Norma 203B | <<locked>> | 92% | 49,400 psi | 90% | 2835 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 46,122 psi | 84% | 2831 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 92% | 49,545 psi | 90% | 2858 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 45,411 psi | 82% | 2818 fps | 97.3% |
| Ramshot TAC | <<locked>> | 86% | 49,052 psi | 89% | 2779 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 47,979 psi | 87% | 2795 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 49,806 psi | 90% | 2762 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,824 psi | 63% | 1742 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 48,167 psi | 87% | 2743 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 48,414 psi | 88% | 2776 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 46,412 psi | 84% | 2851 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 49,690 psi | 90% | 2943 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,774 psi | 83% | 2854 fps | 98.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,021 psi | 85% | 2881 fps | 98.5% |
| Rottweil R 901 | <<locked>> | 86% | 48,878 psi | 89% | 2733 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 48,486 psi | 88% | 2749 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 49,066 psi | 89% | 2822 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 47,326 psi | 86% | 2746 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 98% | 48,225 psi | 88% | 2776 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 47,906 psi | 87% | 2779 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 49,124 psi | 89% | 2782 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 48,718 psi | 88% | 2805 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 47,819 psi | 87% | 2838 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 46,702 psi | 85% | 2746 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 47,718 psi | 87% | 2779 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 47,311 psi | 86% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 46,833 psi | 85% | 2654 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 48,356 psi | 88% | 2726 fps | 96.8% |
| Somchem S321 | <<locked>> | 84% | 49,226 psi | 89% | 2792 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 49,211 psi | 89% | 2697 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 49,806 psi | 90% | 2795 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 47,036 psi | 85% | 2779 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,756 psi | 74% | 2776 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 47,210 psi | 86% | 2625 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 47,427 psi | 86% | 2644 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 47,514 psi | 86% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 48,762 psi | 88% | 2733 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 48,109 psi | 87% | 2756 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,559 psi | 88% | 2822 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 86% | 49,095 psi | 89% | 2762 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 47,210 psi | 86% | 2740 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,703 psi | 87% | 2835 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 33,823 psi | 61% | 2644 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 46,673 psi | 85% | 2762 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 48,225 psi | 88% | 2808 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 49,821 psi | 90% | 2887 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 47,152 psi | 86% | 2785 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 41,553 psi | 75% | 2579 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,947 psi | 82% | 2680 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,605 psi | 61% | 2497 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,234 psi | 73% | 2641 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 45,208 psi | 82% | 2661 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 31,792 psi | 58% | 2487 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 31,966 psi | 58% | 2556 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 38,189 psi | 69% | 2605 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 32,372 psi | 59% | 2454 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,292 psi | 73% | 2615 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 39,247 psi | 71% | 2602 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,717 psi | 85% | 2812 fps | 99.8% |
| Alliant Power Pro 2000-MR | 44.2 gr | 80% | 34,389 psi | 62% | 2618 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,430 psi | 57% | 2474 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,069 psi | 62% | 2536 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 31,676 psi | 57% | 2523 fps | 95% |
| Alliant Reloder-17 | 44.6 gr | 82% | 29,066 psi | 53% | 2487 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 96% | 28,471 psi | 52% | 2470 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,028 psi | 67% | 2602 fps | 97.2% |
| Bofors RP3 | <<locked>> | 80% | 30,516 psi | 55% | 2470 fps | 97.5% |
| Bofors RP7 | <<locked>> | 94% | 44,469 psi | 81% | 2697 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,192 psi | 77% | 2605 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,319 psi | 70% | 2631 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,119 psi | 76% | 2766 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 80% | 45,948 psi | 83% | 2710 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 33,982 psi | 62% | 2526 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 94% | 40,799 psi | 74% | 2723 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 38,450 psi | 70% | 2615 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 28,645 psi | 52% | 2418 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,287 psi | 62% | 2579 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 96% | 44,367 psi | 81% | 2802 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,657 psi | 47% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,985 psi | 67% | 2566 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 37,478 psi | 68% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,895 psi | 62% | 2484 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 41,800 psi | 76% | 2612 fps | 95.1% |
| IMR 4350 | <<locked>> | 98% | 44,353 psi | 80% | 2720 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 43,816 psi | 80% | 2684 fps | 95.6% |
| IMR 4831 | <<locked>> | 90% | 31,430 psi | 57% | 2516 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 34,838 psi | 63% | 2569 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 80% | 40,292 psi | 73% | 2615 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 44,889 psi | 81% | 2690 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 36,274 psi | 66% | 2579 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 38,841 psi | 70% | 2543 fps | 98.5% |
| Lovex S062 | <<locked>> | 80% | 33,475 psi | 61% | 2490 fps | 98.5% |
| Lovex S065 | <<locked>> | 90% | 37,492 psi | 68% | 2575 fps | 95.6% |
| Lovex S070 | <<locked>> | 94% | 40,190 psi | 73% | 2651 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 37,318 psi | 68% | 2559 fps | 99.2% |
| Norma 202 | <<locked>> | 80% | 37,420 psi | 68% | 2569 fps | 100% |
| Norma 203B | <<locked>> | 80% | 33,446 psi | 61% | 2526 fps | 97.3% |
| Norma URP | <<locked>> | 90% | 33,199 psi | 60% | 2566 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 32,938 psi | 60% | 2533 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 94% | 37,376 psi | 68% | 2657 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 40,059 psi | 73% | 2612 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,146 psi | 71% | 2635 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,656 psi | 79% | 2661 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,657 psi | 47% | 1555 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,266 psi | 82% | 2697 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 39,827 psi | 72% | 2618 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,027 psi | 64% | 2625 fps | 97.3% |
| ReloadSwiss RS 60 | 43.5 gr | 80% | 29,008 psi | 53% | 2497 fps | 98.4% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 32,532 psi | 59% | 2579 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 35,868 psi | 65% | 2644 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 40,843 psi | 74% | 2598 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 35,404 psi | 64% | 2510 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 28,660 psi | 52% | 2415 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 94% | 44,469 psi | 81% | 2697 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 37,492 psi | 68% | 2575 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,274 psi | 66% | 2579 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 33,475 psi | 61% | 2490 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 94% | 40,190 psi | 73% | 2651 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 30,095 psi | 55% | 2464 fps | 95.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 37,956 psi | 69% | 2582 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,666 psi | 67% | 2572 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,001 psi | 71% | 2516 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,966 psi | 58% | 2388 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 42,076 psi | 76% | 2621 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 42,989 psi | 78% | 2690 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 38,537 psi | 70% | 2523 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 37,695 psi | 68% | 2582 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 29,965 psi | 54% | 2428 fps | 96.7% |
| Somchem S365 | <<locked>> | 84% | 24,395 psi | 44% | 2352 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 44,338 psi | 80% | 2582 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,189 psi | 71% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,345 psi | 62% | 2497 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,302 psi | 64% | 2507 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 28,297 psi | 51% | 2365 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 32,779 psi | 59% | 2513 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 40,030 psi | 73% | 2608 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 33,997 psi | 62% | 2500 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 31,952 psi | 58% | 2516 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 29,805 psi | 54% | 2543 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 27,282 psi | 50% | 2336 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 39,073 psi | 71% | 2651 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 40,799 psi | 74% | 2723 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,781 psi | 65% | 2572 fps | 98.4% |
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 7.5 x 55 Swiss loaded with the .308 | 167gr | MRR Green Hunting. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,943 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 (380 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 167.0 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for 7.5 x 55 Swiss with the .308 | 167gr | MRR Green Hunting 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.