Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 150gr | Sierra SBT GameKing bullet and 90 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.
A valid access license is required to use the Personalized Load Calculator.
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% | 47,950 psi | 87% | 2854 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 49,182 psi | 89% | 2920 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 48,443 psi | 88% | 2917 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 47,036 psi | 85% | 2927 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 48,370 psi | 88% | 2963 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,702 psi | 85% | 3015 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 88% | 49,792 psi | 90% | 2992 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 92% | 47,964 psi | 87% | 2940 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 49,211 psi | 89% | 2946 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 48,936 psi | 89% | 2930 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 48,863 psi | 89% | 3100 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 46,949 psi | 85% | 2959 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 90% | 47,863 psi | 87% | 2982 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,615 psi | 85% | 3028 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 47,065 psi | 85% | 3068 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 32,837 psi | 60% | 2740 fps | 96.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 49,414 psi | 90% | 3005 fps | 99% |
| Bofors RP3 | <<locked>> | 92% | 46,876 psi | 85% | 2969 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 48,399 psi | 88% | 2884 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 47,703 psi | 87% | 2972 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 49,081 psi | 89% | 3064 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 82% | 49,545 psi | 90% | 2943 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 48,472 psi | 88% | 2982 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 98% | 47,137 psi | 86% | 3012 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 86% | 47,224 psi | 86% | 2953 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,627 psi | 77% | 2897 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 48,820 psi | 89% | 3035 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,664 psi | 63% | 1831 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 48,559 psi | 88% | 2956 fps | 99.7% |
| IMR 3031 | <<locked>> | 88% | 49,545 psi | 90% | 2992 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 47,398 psi | 86% | 2920 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 88% | 47,892 psi | 87% | 2890 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 94% | 47,311 psi | 86% | 2913 fps | 95.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,788 psi | 81% | 2959 fps | 98.4% |
| IMR 4895 | <<locked>> | 90% | 49,023 psi | 89% | 3015 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 49,211 psi | 89% | 2946 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 48,892 psi | 89% | 2927 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 48,689 psi | 88% | 2966 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 47,326 psi | 86% | 2871 fps | 99.3% |
| Lovex S062 | <<locked>> | 90% | 46,920 psi | 85% | 2920 fps | 99.9% |
| Lovex S065 | <<locked>> | 98% | 48,907 psi | 89% | 2956 fps | 97.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 49,313 psi | 89% | 2986 fps | 96.7% |
| Norma 201 | <<locked>> | 88% | 48,907 psi | 89% | 2940 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 48,979 psi | 89% | 2946 fps | 100% |
| Norma 203B | <<locked>> | 90% | 47,123 psi | 86% | 2969 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 46,673 psi | 85% | 3009 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 90% | 46,833 psi | 85% | 2986 fps | 99.3% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,311 psi | 84% | 3002 fps | 96.8% |
| Ramshot TAC | <<locked>> | 86% | 49,617 psi | 90% | 2956 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,660 psi | 88% | 2979 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 82% | 47,210 psi | 86% | 2894 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,070 psi | 64% | 1877 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 48,892 psi | 89% | 2933 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 48,994 psi | 89% | 2956 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 46,905 psi | 85% | 3038 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 47,181 psi | 86% | 3081 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,586 psi | 85% | 3038 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,819 psi | 87% | 3064 fps | 98% |
| Rottweil R 901 | <<locked>> | 84% | 47,224 psi | 86% | 2881 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 49,066 psi | 89% | 2933 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 46,760 psi | 85% | 2959 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 48,907 psi | 89% | 2956 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 48,689 psi | 88% | 2966 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 46,920 psi | 85% | 2920 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 49,313 psi | 89% | 2986 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 48,530 psi | 88% | 3022 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 47,485 psi | 86% | 2927 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 48,240 psi | 88% | 2963 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 47,776 psi | 87% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 47,471 psi | 86% | 2835 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 49,008 psi | 89% | 2900 fps | 96.3% |
| Somchem S321 | <<locked>> | 82% | 46,920 psi | 85% | 2930 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 47,108 psi | 85% | 2838 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 47,123 psi | 86% | 2923 fps | 99.3% |
| Somchem S355 | <<locked>> | 94% | 47,558 psi | 86% | 2959 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,597 psi | 75% | 2956 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 47,747 psi | 87% | 2805 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 47,819 psi | 87% | 2825 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 48,225 psi | 88% | 2904 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 49,516 psi | 90% | 2920 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 48,863 psi | 89% | 2940 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,211 psi | 89% | 3005 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 86% | 49,458 psi | 90% | 2943 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 47,703 psi | 87% | 2920 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,254 psi | 88% | 3015 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 34,650 psi | 63% | 2818 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 47,297 psi | 86% | 2940 fps | 99.7% |
| Winchester 748 | <<locked>> | 86% | 48,776 psi | 89% | 2995 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 47,427 psi | 86% | 3018 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 47,732 psi | 87% | 2966 fps | 99.7% |
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% | 42,148 psi | 76% | 2756 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,948 psi | 83% | 2867 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,751 psi | 63% | 2674 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,118 psi | 75% | 2822 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 32,866 psi | 60% | 2661 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 33,069 psi | 60% | 2733 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 38,812 psi | 70% | 2779 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 33,112 psi | 60% | 2621 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,857 psi | 74% | 2792 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 39,871 psi | 72% | 2785 fps | 100% |
| Alliant Power Pro 2000-MR | 47.6 gr | 80% | 34,983 psi | 63% | 2789 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,024 psi | 58% | 2641 fps | 97.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,737 psi | 63% | 2707 fps | 96.4% |
| Alliant Reloder-16 | <<locked>> | 90% | 34,272 psi | 62% | 2743 fps | 95.2% |
| Alliant Reloder-17 | 48 gr | 82% | 29,675 psi | 54% | 2648 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 30,966 psi | 56% | 2684 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,724 psi | 68% | 2776 fps | 96.7% |
| Bofors RP3 | <<locked>> | 80% | 31,473 psi | 57% | 2641 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,844 psi | 78% | 2785 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,986 psi | 71% | 2808 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,714 psi | 78% | 2946 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 80% | 46,427 psi | 84% | 2894 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 37,144 psi | 67% | 2753 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 96% | 44,237 psi | 80% | 2956 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 39,131 psi | 71% | 2792 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 29,370 psi | 53% | 2579 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,056 psi | 64% | 2756 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,875 psi | 47% | 1640 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,565 psi | 68% | 2740 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 38,072 psi | 69% | 2792 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,693 psi | 63% | 2654 fps | 96.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 45,020 psi | 82% | 2835 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 44,512 psi | 81% | 2861 fps | 95.1% |
| IMR 4831 | <<locked>> | 92% | 34,389 psi | 62% | 2740 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 35,549 psi | 65% | 2740 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 80% | 40,857 psi | 74% | 2792 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 45,643 psi | 83% | 2874 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 37,130 psi | 67% | 2753 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 39,552 psi | 72% | 2720 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 34,432 psi | 62% | 2664 fps | 98.1% |
| Lovex S065 | <<locked>> | 90% | 38,435 psi | 70% | 2749 fps | 95.1% |
| Lovex S070 | <<locked>> | 96% | 43,598 psi | 79% | 2877 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 38,029 psi | 69% | 2733 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 37,971 psi | 69% | 2743 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,142 psi | 62% | 2697 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 33,997 psi | 62% | 2736 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 33,576 psi | 61% | 2700 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 96% | 40,524 psi | 74% | 2884 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 40,785 psi | 74% | 2785 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,740 psi | 72% | 2808 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,222 psi | 80% | 2838 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,889 psi | 47% | 1677 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,658 psi | 83% | 2877 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 43,120 psi | 78% | 2844 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,650 psi | 65% | 2799 fps | 96.7% |
| ReloadSwiss RS 60 | 46.9 gr | 80% | 29,718 psi | 54% | 2664 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 35,520 psi | 64% | 2802 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 39,015 psi | 71% | 2874 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 41,684 psi | 76% | 2779 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 36,245 psi | 66% | 2684 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 80% | 29,573 psi | 54% | 2582 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 90% | 38,435 psi | 70% | 2749 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,130 psi | 67% | 2753 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 34,432 psi | 62% | 2664 fps | 98.1% |
| Shooters World SW4350 | <<locked>> | 96% | 43,598 psi | 79% | 2877 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 30,763 psi | 56% | 2631 fps | 95.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,595 psi | 70% | 2753 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,260 psi | 68% | 2743 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,537 psi | 72% | 2690 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,518 psi | 59% | 2552 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 45,861 psi | 83% | 2848 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 43,859 psi | 80% | 2874 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 39,189 psi | 71% | 2694 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,435 psi | 70% | 2756 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 30,676 psi | 56% | 2592 fps | 96.1% |
| Somchem S365 | <<locked>> | 86% | 26,832 psi | 49% | 2569 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 44,846 psi | 81% | 2759 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,668 psi | 72% | 2687 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,012 psi | 64% | 2671 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,013 psi | 65% | 2677 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 29,095 psi | 53% | 2530 fps | 97% |
| Vihtavuori N160 | <<locked>> | 90% | 35,810 psi | 65% | 2736 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 40,785 psi | 74% | 2785 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 34,534 psi | 63% | 2664 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 34,809 psi | 63% | 2740 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 98% | 32,518 psi | 59% | 2762 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 29,936 psi | 54% | 2552 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 39,784 psi | 72% | 2831 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 44,512 psi | 81% | 2963 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,477 psi | 66% | 2746 fps | 98% |
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 105 powders for 7.5 x 55 Swiss loaded with the .308 | 150gr | Sierra SBT GameKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,100 fps; across all powders the maximum-charge window runs from 1,831 fps to 3,100 fps. Accurate 3100 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. 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 | 150gr | Sierra SBT GameKing 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.