Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 187gr | Peregrine VLR5 (VLR-5) 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 Reloder-17, ReloadSwiss RS 60 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.
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Max Load - Barrel Length: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 48,849 psi | 89% | 2513 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 49,211 psi | 89% | 2575 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 48,167 psi | 87% | 2592 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 46,702 psi | 85% | 2526 fps | 96.4% |
| Accurate 4064 | <<locked>> | 92% | 49,037 psi | 89% | 2615 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,022 psi | 87% | 2690 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 48,051 psi | 87% | 2612 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 49,023 psi | 89% | 2612 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 47,369 psi | 86% | 2566 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 47,239 psi | 86% | 2543 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 47,050 psi | 85% | 2717 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 48,327 psi | 88% | 2631 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 48,834 psi | 89% | 2648 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,863 psi | 87% | 2707 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 48,385 psi | 88% | 2740 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,489 psi | 61% | 2464 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 36,695 psi | 67% | 2595 fps | 97.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 47,384 psi | 86% | 2625 fps | 99.6% |
| Bofors RP3 | <<locked>> | 92% | 48,095 psi | 87% | 2641 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 49,182 psi | 89% | 2612 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 49,516 psi | 90% | 2552 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 48,907 psi | 89% | 2638 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 47,094 psi | 85% | 2677 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 49,545 psi | 90% | 2654 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 98% | 48,472 psi | 88% | 2697 fps | 98% |
| Hodgdon H4350 | <<locked>> | 94% | 46,891 psi | 85% | 2612 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 86% | 48,457 psi | 88% | 2621 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,627 psi | 79% | 2585 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 47,007 psi | 85% | 2651 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 49,487 psi | 90% | 2730 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,737 psi | 63% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 49,676 psi | 90% | 2621 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 47,921 psi | 87% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 48,341 psi | 88% | 2592 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,037 psi | 89% | 2575 fps | 97.7% |
| IMR 4350ᴾ | <<locked>> | 100% | 49,168 psi | 89% | 2635 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 48,472 psi | 88% | 2602 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,919 psi | 83% | 2641 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 47,181 psi | 86% | 2635 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 47,369 psi | 86% | 2566 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 49,821 psi | 90% | 2589 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 46,804 psi | 85% | 2585 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 48,283 psi | 88% | 2543 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 47,819 psi | 87% | 2589 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 47,195 psi | 86% | 2592 fps | 98.6% |
| Lovex S070 | <<locked>> | 98% | 47,311 psi | 86% | 2615 fps | 97.8% |
| Norma 201 | <<locked>> | 88% | 49,734 psi | 90% | 2602 fps | 100% |
| Norma 202 | <<locked>> | 86% | 47,224 psi | 86% | 2566 fps | 100% |
| Norma 203B | <<locked>> | 90% | 48,022 psi | 87% | 2638 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 49,313 psi | 89% | 2674 fps | 96% |
| Norma URPᴾ | <<locked>> | 100% | 48,051 psi | 87% | 2690 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 48,138 psi | 87% | 2661 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 47,166 psi | 86% | 2684 fps | 98.4% |
| Ramshot TAC | <<locked>> | 84% | 47,384 psi | 86% | 2582 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 46,586 psi | 85% | 2598 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 48,124 psi | 87% | 2566 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,998 psi | 64% | 1621 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 47,021 psi | 85% | 2585 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 48,704 psi | 88% | 2710 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 48,443 psi | 88% | 2743 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,993 psi | 87% | 2720 fps | 99.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,733 psi | 88% | 2743 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 84% | 47,747 psi | 87% | 2539 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 47,181 psi | 86% | 2556 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 47,979 psi | 87% | 2631 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 49,182 psi | 89% | 2612 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 47,195 psi | 86% | 2592 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 46,804 psi | 85% | 2585 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 47,819 psi | 87% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 47,311 psi | 86% | 2615 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 49,835 psi | 90% | 2694 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 48,762 psi | 88% | 2608 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,661 psi | 90% | 2635 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 48,834 psi | 89% | 2503 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 48,675 psi | 88% | 2503 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,123 psi | 86% | 2543 fps | 97.4% |
| Somchem S321 | <<locked>> | 82% | 47,979 psi | 87% | 2598 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 48,109 psi | 87% | 2507 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 48,312 psi | 88% | 2598 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 48,805 psi | 89% | 2631 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,786 psi | 78% | 2641 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 48,733 psi | 88% | 2470 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 49,037 psi | 89% | 2490 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 49,429 psi | 90% | 2562 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 47,674 psi | 87% | 2543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 46,949 psi | 85% | 2566 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 47,601 psi | 86% | 2638 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 47,369 psi | 86% | 2562 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 48,921 psi | 89% | 2589 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,588 psi | 90% | 2690 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,563 psi | 65% | 2526 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 48,225 psi | 88% | 2618 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 46,717 psi | 85% | 2605 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 48,762 psi | 88% | 2700 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 29,602 psi | 54% | 2444 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 88% | 49,023 psi | 89% | 2638 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 2015 | <<locked>> | 80% | 42,989 psi | 78% | 2431 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,172 psi | 64% | 2362 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,119 psi | 76% | 2503 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 41,060 psi | 75% | 2428 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 33,315 psi | 60% | 2359 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 29,356 psi | 53% | 2339 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 39,494 psi | 72% | 2467 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 33,765 psi | 61% | 2333 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,611 psi | 76% | 2474 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 41,263 psi | 75% | 2457 fps | 100% |
| Alliant Power Pro 2000-MR | 41.8 gr | 80% | 35,723 psi | 65% | 2493 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,822 psi | 60% | 2352 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,346 psi | 64% | 2408 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 29,095 psi | 53% | 2306 fps | 95.1% |
| Alliant Reloder-17 | 41.2 gr | 80% | 28,355 psi | 51% | 2323 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 26,150 psi | 47% | 2260 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 31,952 psi | 58% | 2477 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,522 psi | 70% | 2470 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 32,068 psi | 58% | 2352 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 40,698 psi | 74% | 2467 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,613 psi | 79% | 2461 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,856 psi | 72% | 2497 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,034 psi | 80% | 2628 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 33,185 psi | 60% | 2356 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 90% | 37,260 psi | 68% | 2493 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 43,932 psi | 80% | 2562 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 39,827 psi | 72% | 2477 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 24,743 psi | 45% | 2162 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,824 psi | 65% | 2454 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 39,871 psi | 72% | 2556 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,759 psi | 47% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,435 psi | 70% | 2434 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 39,073 psi | 71% | 2470 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,389 psi | 64% | 2362 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 37,942 psi | 69% | 2379 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 40,814 psi | 74% | 2493 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 40,059 psi | 73% | 2454 fps | 95.6% |
| IMR 4831 | <<locked>> | 86% | 28,935 psi | 53% | 2303 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 36,187 psi | 66% | 2434 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 41,611 psi | 76% | 2474 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 46,644 psi | 85% | 2546 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 37,913 psi | 69% | 2444 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 40,350 psi | 73% | 2411 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 35,041 psi | 64% | 2365 fps | 99.4% |
| Lovex S065 | <<locked>> | 86% | 34,592 psi | 63% | 2359 fps | 95.7% |
| Lovex S070 | <<locked>> | 90% | 36,956 psi | 67% | 2428 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 38,711 psi | 70% | 2421 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 38,914 psi | 71% | 2431 fps | 100% |
| Norma 203B | <<locked>> | 80% | 34,722 psi | 63% | 2398 fps | 98.5% |
| Norma 204 | <<locked>> | 98% | 46,195 psi | 84% | 2621 fps | 95.3% |
| Norma URP | <<locked>> | 84% | 28,732 psi | 52% | 2300 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 34,272 psi | 62% | 2411 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 34,258 psi | 62% | 2434 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 41,539 psi | 75% | 2480 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,683 psi | 74% | 2500 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,179 psi | 82% | 2520 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,078 psi | 47% | 1450 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 36,114 psi | 66% | 2388 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,651 psi | 67% | 2500 fps | 98.5% |
| ReloadSwiss RS 60 | 41.2 gr | 80% | 30,255 psi | 55% | 2385 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 29,660 psi | 54% | 2356 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 32,634 psi | 59% | 2418 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 42,438 psi | 77% | 2457 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 36,695 psi | 67% | 2375 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 30,052 psi | 55% | 2300 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 40,698 psi | 74% | 2467 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 34,592 psi | 63% | 2359 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,913 psi | 69% | 2444 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 35,041 psi | 64% | 2365 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 36,956 psi | 67% | 2428 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,343 psi | 57% | 2349 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,465 psi | 72% | 2454 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,116 psi | 69% | 2441 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,437 psi | 73% | 2379 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,257 psi | 60% | 2260 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 38,261 psi | 69% | 2395 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 44,701 psi | 81% | 2546 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 39,885 psi | 72% | 2382 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,233 psi | 71% | 2451 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 31,270 psi | 57% | 2310 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 22,365 psi | 41% | 2146 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 45,919 psi | 83% | 2431 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,683 psi | 74% | 2372 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,926 psi | 65% | 2359 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,767 psi | 67% | 2372 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 29,588 psi | 54% | 2251 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 30,037 psi | 55% | 2297 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 41,713 psi | 76% | 2470 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 35,317 psi | 64% | 2365 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 29,254 psi | 53% | 2303 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 27,412 psi | 50% | 2329 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 26,498 psi | 48% | 2178 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 40,857 psi | 74% | 2513 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 37,260 psi | 68% | 2493 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 96% | 26,092 psi | 47% | 2326 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,420 psi | 68% | 2444 fps | 99.3% |
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 | 187gr | Peregrine VLR5 (VLR-5). ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,743 fps; across all powders the maximum-charge window runs from 1,581 fps to 2,743 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 54–90 %, leaving at least 10 % headroom. The 187.0 gr projectile in 0.308" calls for a 1:10.5 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 Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for 7.5 x 55 Swiss with the .308 | 187gr | Peregrine VLR5 (VLR-5) 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.