Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 155gr | Berger VLD Target bullet and 95 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: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 49,501 psi | 90% | 2805 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 47,863 psi | 87% | 2828 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 49,777 psi | 90% | 2867 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 49,037 psi | 89% | 2890 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 49,792 psi | 90% | 2913 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 44,947 psi | 82% | 2913 fps | 98.3% |
| ADI AR 2206H | <<locked>> | 88% | 48,689 psi | 88% | 2900 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 94% | 49,530 psi | 90% | 2894 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 86% | 47,950 psi | 87% | 2854 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 47,181 psi | 86% | 2835 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 49,023 psi | 89% | 2956 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 47,442 psi | 86% | 2995 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 48,486 psi | 88% | 2913 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 82% | 49,400 psi | 90% | 2815 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 49,458 psi | 90% | 2936 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,107 psi | 82% | 2927 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 98% | 48,805 psi | 89% | 3028 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 31,952 psi | 58% | 2651 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 47,819 psi | 87% | 2907 fps | 98.7% |
| Bofors RP3 | <<locked>> | 94% | 48,617 psi | 88% | 2930 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 49,821 psi | 90% | 2884 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 47,311 psi | 86% | 2795 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 88% | 49,545 psi | 90% | 2933 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 47,747 psi | 87% | 2969 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 82% | 48,211 psi | 87% | 2851 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 49,269 psi | 89% | 2881 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 46,804 psi | 85% | 2881 fps | 98% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 48,834 psi | 89% | 2969 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 88% | 49,052 psi | 89% | 2913 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,350 psi | 75% | 2805 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 47,427 psi | 86% | 2940 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,490 psi | 63% | 1772 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 47,152 psi | 86% | 2861 fps | 99.6% |
| IMR 3031 | <<locked>> | 88% | 48,008 psi | 87% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 49,095 psi | 89% | 2877 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 90% | 49,777 psi | 90% | 2851 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 96% | 48,863 psi | 89% | 2871 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,207 psi | 78% | 2861 fps | 98% |
| IMR 4895 | <<locked>> | 90% | 47,369 psi | 86% | 2917 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 86% | 47,950 psi | 87% | 2854 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 47,688 psi | 87% | 2838 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 47,268 psi | 86% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 49,066 psi | 89% | 2828 fps | 99.5% |
| Lovex S062 | <<locked>> | 92% | 48,544 psi | 88% | 2877 fps | 99.9% |
| Lovex S065 | <<locked>> | 98% | 47,442 psi | 86% | 2858 fps | 97.3% |
| Lovex S070ᴾ | <<locked>> | 100% | 47,776 psi | 87% | 2887 fps | 96.3% |
| Norma 201 | <<locked>> | 88% | 47,601 psi | 86% | 2848 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 47,674 psi | 87% | 2854 fps | 100% |
| Norma 203B | <<locked>> | 92% | 48,631 psi | 88% | 2923 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 45,107 psi | 82% | 2910 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 92% | 48,704 psi | 88% | 2946 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 44,599 psi | 81% | 2897 fps | 96.3% |
| Ramshot TAC | <<locked>> | 86% | 48,327 psi | 88% | 2864 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 47,181 psi | 86% | 2884 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 84% | 49,153 psi | 89% | 2854 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,925 psi | 63% | 1818 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 47,456 psi | 86% | 2838 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 47,601 psi | 86% | 2861 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 48,791 psi | 89% | 2999 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 48,762 psi | 88% | 3035 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,049 psi | 82% | 2940 fps | 98.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,340 psi | 84% | 2959 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 86% | 48,631 psi | 88% | 2835 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 47,863 psi | 87% | 2841 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 96% | 48,486 psi | 88% | 2917 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 98% | 49,821 psi | 90% | 2884 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 47,442 psi | 86% | 2858 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 47,268 psi | 86% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 48,544 psi | 88% | 2877 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 47,776 psi | 87% | 2887 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 47,094 psi | 85% | 2930 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 49,516 psi | 90% | 2890 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 47,050 psi | 85% | 2867 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 49,472 psi | 90% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 48,921 psi | 89% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 47,558 psi | 86% | 2808 fps | 95.9% |
| Somchem S321 | <<locked>> | 84% | 48,602 psi | 88% | 2887 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 48,820 psi | 89% | 2795 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 48,849 psi | 89% | 2881 fps | 99.4% |
| Somchem S355 | <<locked>> | 96% | 49,226 psi | 89% | 2917 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,161 psi | 73% | 2861 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 84% | 49,458 psi | 90% | 2762 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 49,443 psi | 90% | 2779 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 49,719 psi | 90% | 2858 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 48,095 psi | 87% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 47,529 psi | 86% | 2851 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,659 psi | 86% | 2907 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 86% | 48,240 psi | 88% | 2851 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 49,385 psi | 90% | 2874 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,804 psi | 85% | 2920 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 33,504 psi | 61% | 2723 fps | 96% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 48,849 psi | 89% | 2894 fps | 99.8% |
| Winchester 748 | <<locked>> | 86% | 47,094 psi | 85% | 2897 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 49,066 psi | 89% | 2976 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 90% | 49,487 psi | 90% | 2927 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% | 41,176 psi | 75% | 2674 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,773 psi | 81% | 2779 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,591 psi | 61% | 2589 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,755 psi | 72% | 2730 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 31,763 psi | 58% | 2572 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 34,026 psi | 62% | 2690 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 37,681 psi | 68% | 2687 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 32,227 psi | 58% | 2536 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,653 psi | 72% | 2700 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 38,754 psi | 70% | 2700 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,788 psi | 83% | 2900 fps | 99.5% |
| Alliant Power Pro 2000-MR | 45.1 gr | 80% | 33,997 psi | 62% | 2694 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,024 psi | 56% | 2552 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,485 psi | 84% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 33,605 psi | 61% | 2615 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 92% | 35,491 psi | 64% | 2707 fps | 95.6% |
| Alliant Reloder-17 | 46.6 gr | 84% | 30,763 psi | 56% | 2618 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 29,994 psi | 54% | 2592 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,695 psi | 67% | 2684 fps | 96.3% |
| Bofors RP3 | <<locked>> | 80% | 30,400 psi | 55% | 2552 fps | 96.7% |
| Bofors RP7 | <<locked>> | 96% | 46,920 psi | 85% | 2831 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,843 psi | 76% | 2697 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,782 psi | 69% | 2720 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,568 psi | 75% | 2851 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 80% | 45,295 psi | 82% | 2805 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 45,861 psi | 83% | 2828 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 36,027 psi | 65% | 2661 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 98% | 45,658 psi | 83% | 2913 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 37,913 psi | 69% | 2697 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 30,371 psi | 55% | 2546 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,924 psi | 62% | 2661 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,744 psi | 47% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,608 psi | 66% | 2654 fps | 97.9% |
| IMR 3031 | <<locked>> | 80% | 36,811 psi | 67% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,707 psi | 61% | 2566 fps | 96% |
| IMR 4166 Enduron | <<locked>> | 88% | 46,673 psi | 85% | 2795 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 94% | 46,093 psi | 84% | 2822 fps | 95.4% |
| IMR 4831 | <<locked>> | 92% | 33,373 psi | 61% | 2651 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 34,374 psi | 62% | 2648 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 80% | 39,653 psi | 72% | 2700 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 44,353 psi | 80% | 2782 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 35,969 psi | 65% | 2664 fps | 99.5% |
| Lovex S060 | <<locked>> | 80% | 38,595 psi | 70% | 2631 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 33,402 psi | 61% | 2575 fps | 97.8% |
| Lovex S065 | <<locked>> | 92% | 39,523 psi | 72% | 2707 fps | 95.3% |
| Lovex S070 | <<locked>> | 98% | 44,991 psi | 82% | 2835 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 37,014 psi | 67% | 2644 fps | 98.6% |
| Norma 202 | <<locked>> | 80% | 36,898 psi | 67% | 2654 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 33,011 psi | 60% | 2605 fps | 96.4% |
| Norma URP | <<locked>> | 92% | 35,186 psi | 64% | 2700 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 32,576 psi | 59% | 2608 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 98% | 42,076 psi | 76% | 2848 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 39,755 psi | 72% | 2697 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,580 psi | 70% | 2717 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,105 psi | 78% | 2746 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,773 psi | 47% | 1621 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,701 psi | 81% | 2789 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 41,829 psi | 76% | 2753 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 34,592 psi | 63% | 2707 fps | 96.3% |
| ReloadSwiss RS 60 | 44.4 gr | 80% | 28,819 psi | 52% | 2569 fps | 97.4% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 36,651 psi | 67% | 2766 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 40,451 psi | 73% | 2838 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 40,712 psi | 74% | 2694 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 35,186 psi | 64% | 2592 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 80% | 28,660 psi | 52% | 2497 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 96% | 46,920 psi | 85% | 2831 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 92% | 39,523 psi | 72% | 2707 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,969 psi | 65% | 2664 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 33,402 psi | 61% | 2575 fps | 97.8% |
| Shooters World SW4350 | <<locked>> | 98% | 44,991 psi | 82% | 2835 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 31,894 psi | 58% | 2598 fps | 95.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 37,492 psi | 68% | 2661 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,260 psi | 66% | 2654 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,595 psi | 70% | 2602 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,676 psi | 57% | 2470 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 44,338 psi | 80% | 2756 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 42,685 psi | 77% | 2782 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 38,145 psi | 69% | 2608 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 37,333 psi | 68% | 2667 fps | 97.5% |
| Somchem S355 | <<locked>> | 80% | 29,762 psi | 54% | 2507 fps | 95.7% |
| Somchem S365 | <<locked>> | 86% | 26,020 psi | 47% | 2480 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 43,816 psi | 80% | 2674 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,696 psi | 70% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,982 psi | 62% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,041 psi | 64% | 2592 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 28,224 psi | 51% | 2448 fps | 96.7% |
| Vihtavuori N160 | <<locked>> | 90% | 34,563 psi | 63% | 2644 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 39,639 psi | 72% | 2697 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 33,721 psi | 61% | 2582 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 92% | 35,940 psi | 65% | 2700 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 98% | 31,372 psi | 57% | 2667 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,053 psi | 56% | 2520 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 38,464 psi | 70% | 2736 fps | 99.5% |
| Winchester 760 | <<locked>> | 98% | 45,963 psi | 83% | 2920 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,302 psi | 64% | 2654 fps | 97.7% |
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 104 powders for 7.5 x 55 Swiss loaded with the .308 | 155gr | Berger VLD Target. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,035 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 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 7.5 x 55 Swiss with the .308 | 155gr | Berger VLD Target they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, Alliant Reloder-26 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.