Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 180gr | Norma VULKAN bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance 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: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 48,646 psi | 88% | 2648 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,979 psi | 87% | 2641 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 38,740 psi | 70% | 2602 fps | 97.2% |
| Accurate 4064 | <<locked>> | 88% | 48,863 psi | 89% | 2697 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 47,790 psi | 87% | 2776 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 49,342 psi | 90% | 2723 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 47,442 psi | 86% | 2680 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 46,949 psi | 85% | 2749 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,501 psi | 88% | 2674 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 48,965 psi | 89% | 2648 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 48,501 psi | 88% | 2838 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 47,079 psi | 85% | 2700 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 47,558 psi | 86% | 2720 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,385 psi | 90% | 2828 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 46,891 psi | 85% | 2812 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 45,861 psi | 83% | 2743 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,463 psi | 68% | 2638 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,655 psi | 76% | 2795 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 48,762 psi | 88% | 2740 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 47,094 psi | 85% | 2713 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 47,674 psi | 87% | 2684 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 47,268 psi | 86% | 2703 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 48,037 psi | 87% | 2723 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 94% | 47,413 psi | 86% | 2776 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 92% | 48,443 psi | 88% | 2736 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 84% | 49,821 psi | 90% | 2733 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,037 psi | 89% | 2756 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 48,805 psi | 89% | 2766 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 47,572 psi | 86% | 2802 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 64% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,979 psi | 87% | 2690 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 49,647 psi | 90% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 46,804 psi | 85% | 2661 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 47,036 psi | 85% | 2641 fps | 97.7% |
| IMR 4350 | <<locked>> | 96% | 47,906 psi | 87% | 2710 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,719 psi | 90% | 2717 fps | 98.2% |
| IMR 4831 | <<locked>> | 98% | 48,501 psi | 88% | 2769 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 48,762 psi | 88% | 2749 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 48,501 psi | 88% | 2674 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 48,646 psi | 88% | 2697 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,400 psi | 90% | 2654 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 49,705 psi | 90% | 2703 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 49,037 psi | 89% | 2713 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 49,559 psi | 90% | 2743 fps | 98.5% |
| Norma 201 | <<locked>> | 84% | 48,312 psi | 88% | 2671 fps | 100% |
| Norma 202 | <<locked>> | 84% | 48,791 psi | 89% | 2674 fps | 100% |
| Norma 203B | <<locked>> | 86% | 46,862 psi | 85% | 2707 fps | 100% |
| Norma 204 | <<locked>> | 96% | 48,008 psi | 87% | 2753 fps | 96.3% |
| Norma MRPᴾ | <<locked>> | 100% | 41,843 psi | 76% | 2753 fps | 96.8% |
| Norma URP | <<locked>> | 96% | 47,297 psi | 86% | 2769 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 86% | 46,833 psi | 85% | 2730 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 49,371 psi | 90% | 2815 fps | 99.1% |
| Ramshot TAC | <<locked>> | 82% | 48,486 psi | 88% | 2694 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 48,051 psi | 87% | 2713 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,868 psi | 65% | 1709 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,515 psi | 88% | 2707 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 47,311 psi | 86% | 2776 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 46,905 psi | 85% | 2815 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 47,369 psi | 86% | 2799 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 47,456 psi | 86% | 2825 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 82% | 49,559 psi | 90% | 2651 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 48,762 psi | 88% | 2671 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 47,239 psi | 86% | 2707 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 44,309 psi | 80% | 2720 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 92% | 47,674 psi | 87% | 2684 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 49,037 psi | 89% | 2713 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,646 psi | 88% | 2697 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,705 psi | 90% | 2703 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 49,559 psi | 90% | 2743 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 48,631 psi | 88% | 2766 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 46,876 psi | 85% | 2671 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 47,776 psi | 87% | 2697 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,792 psi | 90% | 2608 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,835 psi | 90% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,965 psi | 89% | 2661 fps | 98.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 43,932 psi | 80% | 2717 fps | 95.8% |
| Somchem S335 | <<locked>> | 84% | 49,284 psi | 89% | 2608 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,734 psi | 90% | 2713 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 47,718 psi | 87% | 2703 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,066 psi | 87% | 2815 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 44,875 psi | 81% | 2703 fps | 97% |
| Vihtavuori N133 | <<locked>> | 82% | 47,224 psi | 86% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 48,486 psi | 88% | 2635 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 49,153 psi | 89% | 2651 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 48,747 psi | 88% | 2680 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 49,719 psi | 90% | 2762 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 48,704 psi | 88% | 2674 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 47,340 psi | 86% | 2651 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,675 psi | 88% | 2769 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,857 psi | 74% | 2713 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 49,763 psi | 90% | 2736 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 48,341 psi | 88% | 2720 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 47,688 psi | 87% | 2779 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,518 psi | 61% | 2654 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 47,355 psi | 86% | 2703 fps | 100% |
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 2495 | <<locked>> | 80% | 40,030 psi | 73% | 2516 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 39,494 psi | 72% | 2487 fps | 95% |
| Accurate 3100 | <<locked>> | 96% | 33,939 psi | 62% | 2503 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 37,884 psi | 69% | 2516 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 27,369 psi | 50% | 2352 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 43,482 psi | 79% | 2628 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 37,173 psi | 67% | 2490 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 98% | 44,251 psi | 80% | 2700 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,513 psi | 83% | 2628 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 45,716 psi | 83% | 2602 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,508 psi | 72% | 2667 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,535 psi | 66% | 2510 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,262 psi | 71% | 2569 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 28,572 psi | 52% | 2369 fps | 95.3% |
| Alliant Reloder-17 | 45.7 gr | 80% | 31,604 psi | 57% | 2493 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 43,033 psi | 78% | 2690 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 24,685 psi | 45% | 2287 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 29,718 psi | 54% | 2500 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,772 psi | 78% | 2638 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 36,143 psi | 66% | 2513 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 39,624 psi | 72% | 2533 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,367 psi | 81% | 2657 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,057 psi | 67% | 2520 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 36,463 psi | 66% | 2562 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 88% | 42,699 psi | 77% | 2631 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 43,845 psi | 80% | 2635 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,034 psi | 47% | 2274 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,900 psi | 72% | 2615 fps | 99.9% |
| Hodgdon Superformance | 53.1 gr | 88% | 38,653 psi | 70% | 2625 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 48% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,177 psi | 77% | 2592 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 43,627 psi | 79% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,001 psi | 71% | 2520 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,481 psi | 75% | 2539 fps | 96.5% |
| IMR 4350 | <<locked>> | 90% | 39,668 psi | 72% | 2562 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 82% | 36,579 psi | 66% | 2467 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 28,732 psi | 52% | 2369 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 40,176 psi | 73% | 2598 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 45,513 psi | 83% | 2628 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,656 psi | 77% | 2605 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,830 psi | 80% | 2562 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 38,914 psi | 71% | 2523 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 31,894 psi | 58% | 2372 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 36,303 psi | 66% | 2497 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 42,728 psi | 78% | 2579 fps | 100% |
| Norma 202 | <<locked>> | 80% | 42,888 psi | 78% | 2582 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,624 psi | 70% | 2559 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 44,730 psi | 81% | 2697 fps | 95.5% |
| Norma MRP | <<locked>> | 96% | 36,622 psi | 66% | 2638 fps | 95% |
| Norma URP | <<locked>> | 80% | 28,340 psi | 51% | 2362 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 38,189 psi | 69% | 2572 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 33,504 psi | 61% | 2497 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 45,629 psi | 83% | 2644 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,875 psi | 81% | 2661 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,774 psi | 49% | 1529 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 37,536 psi | 68% | 2500 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,234 psi | 75% | 2671 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,634 psi | 61% | 2552 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 29,472 psi | 53% | 2425 fps | 95.5% |
| ReloadSwiss RS 70 | 48.7 gr | 84% | 31,807 psi | 58% | 2480 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 46,804 psi | 85% | 2612 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,756 psi | 74% | 2533 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 34,127 psi | 62% | 2464 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 98% | 41,481 psi | 75% | 2667 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 39,624 psi | 72% | 2533 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 31,894 psi | 58% | 2372 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,656 psi | 77% | 2605 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,914 psi | 71% | 2523 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 36,303 psi | 66% | 2497 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,056 psi | 64% | 2513 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,685 psi | 79% | 2615 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,163 psi | 77% | 2602 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,193 psi | 80% | 2523 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,695 psi | 67% | 2402 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 37,565 psi | 68% | 2464 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 41,133 psi | 75% | 2661 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 43,743 psi | 79% | 2526 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,540 psi | 79% | 2615 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 34,954 psi | 63% | 2467 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 25,324 psi | 46% | 2316 fps | 97.4% |
| Somchem S385 | <<locked>> | 96% | 39,363 psi | 71% | 2602 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 44,483 psi | 81% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,147 psi | 73% | 2510 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,756 psi | 74% | 2520 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,257 psi | 60% | 2405 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 29,443 psi | 53% | 2359 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 45,643 psi | 83% | 2625 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 39,189 psi | 71% | 2516 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 28,964 psi | 53% | 2365 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 86% | 26,049 psi | 47% | 2359 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,544 psi | 54% | 2339 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 45,295 psi | 82% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 36,666 psi | 67% | 2566 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 90% | 24,569 psi | 45% | 2352 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,437 psi | 75% | 2605 fps | 99.8% |
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 95 powders for 7.5 x 55 Swiss loaded with the .308 | 180gr | Norma VULKAN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,838 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,838 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7.5 x 55 Swiss with the .308 | 180gr | Norma VULKAN 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.