Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 155gr | Frontier RSBT bullet and 92 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 Power Pro 2000-MR and ReloadSwiss RS 52.
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% | 48,327 psi | 88% | 2779 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 49,821 psi | 90% | 2848 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 48,356 psi | 88% | 2838 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 47,398 psi | 86% | 2854 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 48,182 psi | 87% | 2881 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 43,221 psi | 78% | 2874 fps | 97.8% |
| ADI AR 2206H | <<locked>> | 88% | 47,413 psi | 86% | 2867 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 94% | 48,153 psi | 87% | 2858 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 46,731 psi | 85% | 2822 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 88% | 49,081 psi | 89% | 2854 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 47,761 psi | 87% | 2923 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 49,400 psi | 90% | 3018 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 47,326 psi | 86% | 2884 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 82% | 48,414 psi | 88% | 2789 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 47,993 psi | 87% | 2900 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 44,005 psi | 80% | 2887 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 98% | 47,355 psi | 86% | 2986 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 49,705 psi | 90% | 2923 fps | 98.9% |
| Bofors RP3 | <<locked>> | 94% | 47,137 psi | 86% | 2894 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 49,211 psi | 89% | 2812 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 48,153 psi | 87% | 2900 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 49,516 psi | 90% | 2989 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 82% | 47,050 psi | 85% | 2822 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 48,008 psi | 87% | 2851 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 48,704 psi | 88% | 2900 fps | 98.2% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 47,340 psi | 86% | 2930 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 88% | 47,819 psi | 87% | 2881 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,234 psi | 73% | 2769 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 48,950 psi | 89% | 2953 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,505 psi | 63% | 1759 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 48,892 psi | 89% | 2877 fps | 99.6% |
| IMR 3031 | <<locked>> | 90% | 49,603 psi | 90% | 2913 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 47,630 psi | 86% | 2841 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 90% | 48,472 psi | 88% | 2812 fps | 95.7% |
| IMR 4198 | <<locked>> | 82% | 48,994 psi | 89% | 2749 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,727 psi | 76% | 2822 fps | 97.5% |
| IMR 4895 | <<locked>> | 92% | 49,124 psi | 89% | 2933 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 86% | 46,731 psi | 85% | 2822 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 84% | 49,705 psi | 90% | 2858 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 48,994 psi | 89% | 2890 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 47,935 psi | 87% | 2795 fps | 99.2% |
| Lovex S062 | <<locked>> | 92% | 47,036 psi | 85% | 2841 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 49,110 psi | 89% | 2874 fps | 97.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 46,543 psi | 84% | 2851 fps | 95.7% |
| Norma 201 | <<locked>> | 90% | 49,284 psi | 89% | 2864 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 49,356 psi | 90% | 2867 fps | 100% |
| Norma 203B | <<locked>> | 92% | 47,152 psi | 86% | 2887 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 43,888 psi | 80% | 2874 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 92% | 47,152 psi | 86% | 2907 fps | 99.2% |
| Ramshot TAC | <<locked>> | 86% | 47,094 psi | 85% | 2828 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 49,240 psi | 89% | 2904 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 47,805 psi | 87% | 2818 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,679 psi | 63% | 1801 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 49,400 psi | 90% | 2854 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 49,545 psi | 90% | 2877 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 47,166 psi | 86% | 2959 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 47,297 psi | 86% | 2995 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 43,439 psi | 79% | 2894 fps | 97.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 44,962 psi | 82% | 2917 fps | 97% |
| Rottweil R 901 | <<locked>> | 86% | 47,529 psi | 86% | 2805 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 49,545 psi | 90% | 2858 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 96% | 46,731 psi | 85% | 2877 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 49,110 psi | 89% | 2874 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 48,994 psi | 89% | 2890 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 47,036 psi | 85% | 2841 fps | 99.8% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 46,543 psi | 84% | 2851 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 49,211 psi | 89% | 2822 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 48,718 psi | 88% | 2943 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 49,197 psi | 89% | 2805 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 48,153 psi | 87% | 2854 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 48,747 psi | 88% | 2884 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 48,414 psi | 88% | 2762 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 47,776 psi | 87% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 49,472 psi | 90% | 2825 fps | 96% |
| Somchem S321 | <<locked>> | 84% | 47,398 psi | 86% | 2854 fps | 99.9% |
| Somchem S335 | <<locked>> | 88% | 47,645 psi | 86% | 2766 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 47,500 psi | 86% | 2848 fps | 99.2% |
| Somchem S355 | <<locked>> | 96% | 47,819 psi | 87% | 2881 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,073 psi | 71% | 2825 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 84% | 48,312 psi | 88% | 2733 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 48,385 psi | 88% | 2753 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 48,269 psi | 88% | 2828 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 49,864 psi | 90% | 2844 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 49,197 psi | 89% | 2864 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 46,122 psi | 84% | 2867 fps | 98% |
| Vihtavuori N530 | <<locked>> | 86% | 46,978 psi | 85% | 2818 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 92% | 48,269 psi | 88% | 2848 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 45,310 psi | 82% | 2881 fps | 97.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,732 psi | 87% | 2861 fps | 99.6% |
| Winchester 748 | <<locked>> | 88% | 49,110 psi | 89% | 2917 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 47,340 psi | 86% | 2930 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 48,109 psi | 87% | 2890 fps | 99.6% |
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% | 39,958 psi | 73% | 2641 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 43,482 psi | 79% | 2746 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,460 psi | 59% | 2556 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 38,740 psi | 70% | 2700 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 30,734 psi | 56% | 2539 fps | 99.2% |
| Accurate 4350 | <<locked>> | 94% | 35,244 psi | 64% | 2710 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 36,724 psi | 67% | 2654 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 33,330 psi | 60% | 2552 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,667 psi | 70% | 2667 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 80% | 37,463 psi | 68% | 2671 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,541 psi | 81% | 2864 fps | 99.3% |
| Alliant Power Pro 2000-MR | 45 gr | 82% | 35,346 psi | 64% | 2713 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,284 psi | 55% | 2523 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,440 psi | 82% | 2743 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 32,677 psi | 59% | 2579 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 92% | 34,621 psi | 63% | 2671 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 84% | 29,965 psi | 54% | 2579 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 35,708 psi | 65% | 2648 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 29,501 psi | 54% | 2520 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,872 psi | 74% | 2664 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,637 psi | 66% | 2684 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 40,393 psi | 73% | 2815 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 80% | 44,135 psi | 80% | 2776 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,875 psi | 81% | 2799 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 37,449 psi | 68% | 2684 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 98% | 44,309 psi | 80% | 2874 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 36,927 psi | 67% | 2664 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 29,588 psi | 54% | 2510 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,083 psi | 60% | 2628 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,570 psi | 46% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,665 psi | 65% | 2618 fps | 97.4% |
| IMR 3031 | <<locked>> | 80% | 35,621 psi | 65% | 2671 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,779 psi | 59% | 2533 fps | 95.4% |
| IMR 4166 Enduron | <<locked>> | 88% | 45,672 psi | 83% | 2762 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 46,267 psi | 84% | 2707 fps | 100% |
| IMR 4831 | <<locked>> | 94% | 34,345 psi | 62% | 2661 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 33,402 psi | 61% | 2612 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 38,667 psi | 70% | 2667 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 80% | 43,091 psi | 78% | 2746 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 34,925 psi | 63% | 2631 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 37,652 psi | 68% | 2598 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 32,445 psi | 59% | 2543 fps | 97.4% |
| Lovex S065 | <<locked>> | 94% | 40,944 psi | 74% | 2723 fps | 95.5% |
| Lovex S070 | <<locked>> | 98% | 43,758 psi | 79% | 2799 fps | 95% |
| Norma 201 | <<locked>> | 80% | 35,998 psi | 65% | 2612 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 36,129 psi | 66% | 2628 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 32,097 psi | 58% | 2569 fps | 95.9% |
| Norma URP | <<locked>> | 94% | 36,230 psi | 66% | 2713 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 31,633 psi | 57% | 2572 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 38,769 psi | 70% | 2664 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,724 psi | 68% | 2687 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,989 psi | 76% | 2713 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,817 psi | 47% | 1611 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,395 psi | 79% | 2753 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 43,642 psi | 79% | 2772 fps | 95.4% |
| ReloadSwiss RS 52 | 42.6 gr | 80% | 33,692 psi | 61% | 2671 fps | 95.7% |
| ReloadSwiss RS 60 | 43.3 gr | 80% | 28,152 psi | 51% | 2536 fps | 96.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 35,665 psi | 65% | 2726 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 39,320 psi | 71% | 2795 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 39,827 psi | 72% | 2664 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 34,447 psi | 63% | 2566 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 27,731 psi | 50% | 2461 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 40,944 psi | 74% | 2723 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,925 psi | 63% | 2631 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 32,445 psi | 59% | 2543 fps | 97.4% |
| Shooters World SW4350 | <<locked>> | 98% | 43,758 psi | 79% | 2799 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,963 psi | 83% | 2766 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 30,951 psi | 56% | 2562 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,151 psi | 84% | 2759 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 36,434 psi | 66% | 2625 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,375 psi | 64% | 2621 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,826 psi | 69% | 2575 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,922 psi | 56% | 2441 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 45,948 psi | 83% | 2769 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 41,495 psi | 75% | 2749 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 37,159 psi | 67% | 2579 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 36,303 psi | 66% | 2631 fps | 97% |
| Somchem S355 | <<locked>> | 80% | 28,863 psi | 52% | 2474 fps | 95.1% |
| Somchem S365 | <<locked>> | 88% | 26,832 psi | 49% | 2497 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 42,902 psi | 78% | 2648 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,855 psi | 69% | 2575 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,054 psi | 60% | 2556 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,084 psi | 62% | 2562 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 27,412 psi | 50% | 2415 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 35,795 psi | 65% | 2661 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 38,609 psi | 70% | 2664 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 32,648 psi | 59% | 2549 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 35,027 psi | 64% | 2667 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 30,211 psi | 55% | 2484 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 37,463 psi | 68% | 2707 fps | 99.2% |
| Winchester 760 | <<locked>> | 98% | 44,541 psi | 81% | 2877 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,432 psi | 62% | 2621 fps | 97.3% |
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 106 powders for 7.5 x 55 Swiss loaded with the .308 | 155gr | Frontier RSBT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,759 fps to 3,018 fps. Accurate 4350 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 155.0 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 7.5 x 55 Swiss with the .308 | 155gr | Frontier RSBT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-26, Hodgdon H4350, IMR 4350 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.