Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 160gr | Peregrine VRG-3 Lever 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 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.
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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 2015 | <<locked>> | 84% | 47,398 psi | 86% | 2746 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 48,573 psi | 88% | 2815 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 47,239 psi | 86% | 2805 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 46,615 psi | 85% | 2825 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 48,559 psi | 88% | 2792 fps | 95.7% |
| Accurate 4064 | <<locked>> | 92% | 47,413 psi | 86% | 2851 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,354 psi | 84% | 2917 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 49,545 psi | 90% | 2890 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 47,558 psi | 86% | 2838 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 48,863 psi | 89% | 2844 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 48,472 psi | 88% | 2822 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 48,805 psi | 89% | 3002 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 49,705 psi | 90% | 2907 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 47,413 psi | 86% | 2877 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,311 psi | 84% | 2927 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 46,905 psi | 85% | 2969 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 32,343 psi | 59% | 2648 fps | 97% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 48,994 psi | 89% | 2900 fps | 99.2% |
| Bofors RP3 | <<locked>> | 94% | 49,719 psi | 90% | 2920 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 47,848 psi | 87% | 2831 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 48,153 psi | 87% | 2785 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 47,500 psi | 86% | 2874 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 49,110 psi | 89% | 2966 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 82% | 49,356 psi | 90% | 2841 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 48,124 psi | 87% | 2881 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 98% | 46,920 psi | 85% | 2917 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 86% | 46,804 psi | 85% | 2848 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,221 psi | 77% | 2802 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 48,704 psi | 88% | 2933 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 48,080 psi | 87% | 2946 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,577 psi | 63% | 1759 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 48,399 psi | 88% | 2858 fps | 99.8% |
| IMR 3031 | <<locked>> | 88% | 49,168 psi | 89% | 2884 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 47,094 psi | 85% | 2822 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 88% | 47,688 psi | 87% | 2795 fps | 96.4% |
| IMR 4350ᴾ | <<locked>> | 100% | 47,601 psi | 86% | 2851 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 47,094 psi | 85% | 2818 fps | 96.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,237 psi | 80% | 2858 fps | 98.6% |
| IMR 4895 | <<locked>> | 90% | 48,573 psi | 88% | 2910 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 48,863 psi | 89% | 2844 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 48,385 psi | 88% | 2822 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 48,385 psi | 88% | 2864 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 47,137 psi | 86% | 2772 fps | 99.5% |
| Lovex S062 | <<locked>> | 92% | 49,342 psi | 90% | 2864 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 48,675 psi | 88% | 2858 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 48,979 psi | 89% | 2887 fps | 97.1% |
| Norma 201 | <<locked>> | 88% | 48,327 psi | 88% | 2835 fps | 100% |
| Norma 202 | <<locked>> | 88% | 48,588 psi | 88% | 2841 fps | 100% |
| Norma 203B | <<locked>> | 92% | 49,763 psi | 90% | 2917 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 46,427 psi | 84% | 2910 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 90% | 46,702 psi | 85% | 2887 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 45,934 psi | 83% | 2904 fps | 97.3% |
| Ramshot TAC | <<locked>> | 86% | 49,371 psi | 90% | 2861 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,341 psi | 88% | 2877 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 46,934 psi | 85% | 2795 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,708 psi | 63% | 1798 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 48,399 psi | 88% | 2825 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 48,863 psi | 89% | 2861 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 46,876 psi | 85% | 2940 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 46,659 psi | 85% | 2972 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,282 psi | 84% | 2940 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,398 psi | 86% | 2963 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 86% | 49,255 psi | 89% | 2818 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 48,805 psi | 89% | 2835 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 49,588 psi | 90% | 2910 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 47,848 psi | 87% | 2831 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 98% | 48,675 psi | 88% | 2858 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 48,385 psi | 88% | 2864 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 49,342 psi | 90% | 2864 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 48,979 psi | 89% | 2887 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 48,254 psi | 88% | 2923 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 47,036 psi | 85% | 2825 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 48,153 psi | 87% | 2864 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 47,369 psi | 86% | 2733 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 47,181 psi | 86% | 2733 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 48,660 psi | 88% | 2805 fps | 96.7% |
| Somchem S321 | <<locked>> | 84% | 49,690 psi | 90% | 2877 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 49,632 psi | 90% | 2779 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 46,862 psi | 85% | 2825 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 47,398 psi | 86% | 2861 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,220 psi | 75% | 2858 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 47,500 psi | 86% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 47,500 psi | 86% | 2723 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 48,008 psi | 87% | 2802 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 49,298 psi | 89% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 48,631 psi | 88% | 2841 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,037 psi | 89% | 2907 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 86% | 49,124 psi | 89% | 2841 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 47,572 psi | 86% | 2822 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,124 psi | 87% | 2917 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 34,084 psi | 62% | 2723 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 46,804 psi | 85% | 2838 fps | 99.8% |
| Winchester 748 | <<locked>> | 86% | 48,428 psi | 88% | 2890 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 47,224 psi | 86% | 2920 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 47,485 psi | 86% | 2867 fps | 99.8% |
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% | 41,611 psi | 76% | 2654 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,411 psi | 82% | 2766 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,837 psi | 61% | 2572 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,422 psi | 73% | 2720 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 45,527 psi | 83% | 2740 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 32,010 psi | 58% | 2559 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 32,387 psi | 59% | 2635 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 38,334 psi | 70% | 2680 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 32,576 psi | 59% | 2526 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,437 psi | 73% | 2694 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 39,537 psi | 72% | 2684 fps | 100% |
| Alliant Power Pro 2000-MR | 46 gr | 80% | 34,519 psi | 63% | 2690 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,618 psi | 57% | 2546 fps | 97.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,214 psi | 62% | 2608 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 33,881 psi | 61% | 2651 fps | 95.8% |
| Alliant Reloder-17 | 46.4 gr | 82% | 29,138 psi | 53% | 2556 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 28,616 psi | 52% | 2539 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,333 psi | 68% | 2677 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 30,821 psi | 56% | 2546 fps | 97.4% |
| Bofors RP7 | <<locked>> | 94% | 44,802 psi | 81% | 2776 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,380 psi | 77% | 2684 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,435 psi | 70% | 2710 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,438 psi | 77% | 2848 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 80% | 46,383 psi | 84% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 34,156 psi | 62% | 2598 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 94% | 41,147 psi | 75% | 2805 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 38,624 psi | 70% | 2690 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 28,950 psi | 53% | 2490 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,519 psi | 63% | 2654 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 96% | 44,730 psi | 81% | 2884 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,686 psi | 47% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,362 psi | 68% | 2648 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 37,492 psi | 68% | 2687 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,142 psi | 62% | 2559 fps | 96.7% |
| IMR 4166 Enduron | <<locked>> | 84% | 41,901 psi | 76% | 2687 fps | 95% |
| IMR 4350 | <<locked>> | 98% | 44,643 psi | 81% | 2795 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 44,179 psi | 80% | 2766 fps | 95.5% |
| IMR 4831 | <<locked>> | 90% | 31,807 psi | 58% | 2592 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 34,998 psi | 64% | 2641 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 40,437 psi | 73% | 2694 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 45,005 psi | 82% | 2769 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 36,550 psi | 66% | 2654 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 39,030 psi | 71% | 2618 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 33,721 psi | 61% | 2566 fps | 98.4% |
| Lovex S065 | <<locked>> | 90% | 37,739 psi | 68% | 2651 fps | 95.5% |
| Lovex S070 | <<locked>> | 94% | 40,466 psi | 73% | 2730 fps | 95% |
| Norma 201 | <<locked>> | 80% | 37,521 psi | 68% | 2635 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 37,608 psi | 68% | 2648 fps | 100% |
| Norma 203B | <<locked>> | 80% | 33,576 psi | 61% | 2598 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 33,605 psi | 61% | 2641 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 33,054 psi | 60% | 2605 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 96% | 40,190 psi | 73% | 2789 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 40,379 psi | 73% | 2690 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,523 psi | 72% | 2713 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,801 psi | 79% | 2740 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,672 psi | 47% | 1608 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,324 psi | 82% | 2776 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 39,972 psi | 73% | 2694 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,288 psi | 64% | 2703 fps | 97.2% |
| ReloadSwiss RS 60 | 45.3 gr | 80% | 29,153 psi | 53% | 2569 fps | 98.2% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 32,692 psi | 59% | 2651 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 36,056 psi | 65% | 2720 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 40,930 psi | 74% | 2677 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 35,650 psi | 65% | 2585 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 28,848 psi | 52% | 2484 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 44,802 psi | 81% | 2776 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 37,739 psi | 68% | 2651 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,550 psi | 66% | 2654 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 33,721 psi | 61% | 2566 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 94% | 40,466 psi | 73% | 2730 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 30,284 psi | 55% | 2539 fps | 95.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,058 psi | 69% | 2654 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,912 psi | 67% | 2648 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,334 psi | 71% | 2595 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,256 psi | 59% | 2461 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 42,569 psi | 77% | 2700 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 43,395 psi | 79% | 2772 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 38,740 psi | 70% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,029 psi | 69% | 2661 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 30,153 psi | 55% | 2500 fps | 96.5% |
| Somchem S365 | <<locked>> | 84% | 24,526 psi | 45% | 2418 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 44,701 psi | 81% | 2661 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,523 psi | 72% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,679 psi | 63% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,476 psi | 64% | 2579 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 28,456 psi | 52% | 2434 fps | 97.3% |
| Vihtavuori N160 | <<locked>> | 88% | 32,982 psi | 60% | 2585 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 40,379 psi | 73% | 2687 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 34,040 psi | 62% | 2569 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 34,490 psi | 63% | 2648 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 96% | 29,965 psi | 54% | 2612 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 27,601 psi | 50% | 2408 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 39,291 psi | 71% | 2730 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 41,147 psi | 75% | 2805 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,955 psi | 65% | 2648 fps | 98.3% |
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 107 powders for 7.5 x 55 Swiss loaded with the .308 | 160gr | Peregrine VRG-3 Lever. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,759 fps to 3,002 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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 | 160gr | Peregrine VRG-3 Lever they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.