Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 115gr | Sierra VarmintKing bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 4895, IMR 3031 and Hodgdon BL-C2.
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>> | 90% | 47,688 psi | 87% | 3245 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 48,312 psi | 88% | 3323 fps | 96.4% |
| Accurate 2230 | <<locked>> | 82% | 48,747 psi | 88% | 3330 fps | 97% |
| Accurate 2460 | <<locked>> | 88% | 49,371 psi | 90% | 3310 fps | 99.8% |
| Accurate 2495 | <<locked>> | 96% | 46,934 psi | 85% | 3294 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 46,818 psi | 85% | 3304 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 49,719 psi | 90% | 3379 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 49,211 psi | 89% | 3196 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 49,603 psi | 90% | 3215 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 92% | 46,963 psi | 85% | 3307 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 98% | 48,022 psi | 87% | 3297 fps | 96.6% |
| ADI AR 2219 | <<locked>> | 84% | 48,211 psi | 87% | 3320 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 49,690 psi | 90% | 3327 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 92% | 47,761 psi | 87% | 3330 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 47,094 psi | 85% | 3383 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 49,487 psi | 90% | 3458 fps | 96.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 49,356 psi | 90% | 3373 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 86% | 47,921 psi | 87% | 3268 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 47,442 psi | 86% | 3340 fps | 96.8% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 44,034 psi | 80% | 3343 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 48,037 psi | 87% | 3182 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 49,661 psi | 90% | 3369 fps | 96.6% |
| Bofors RP3ᴾ | <<locked>> | 100% | 49,443 psi | 90% | 3389 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 90% | 49,298 psi | 89% | 3268 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 92% | 47,732 psi | 87% | 3350 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 90% | 49,458 psi | 90% | 3445 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 86% | 46,818 psi | 85% | 3294 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 47,877 psi | 87% | 3314 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 92% | 47,297 psi | 86% | 3323 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 48,559 psi | 88% | 3402 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,576 psi | 61% | 2080 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 48,979 psi | 89% | 3333 fps | 98% |
| IMR 3031 | <<locked>> | 94% | 48,370 psi | 88% | 3386 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 47,456 psi | 86% | 3278 fps | 96.7% |
| IMR 4198 | <<locked>> | 86% | 48,805 psi | 89% | 3232 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 48,588 psi | 88% | 3383 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 92% | 49,690 psi | 90% | 3327 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 82% | 49,472 psi | 90% | 3323 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 88% | 49,516 psi | 90% | 3314 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 94% | 48,240 psi | 88% | 3343 fps | 99.6% |
| Lovex S060 | <<locked>> | 92% | 48,196 psi | 87% | 3241 fps | 97.4% |
| Lovex S062 | <<locked>> | 98% | 49,472 psi | 90% | 3340 fps | 98.8% |
| Norma 200 | <<locked>> | 82% | 47,950 psi | 87% | 3238 fps | 100% |
| Norma 201 | <<locked>> | 94% | 48,921 psi | 89% | 3314 fps | 98.7% |
| Norma 202 | <<locked>> | 94% | 49,008 psi | 89% | 3333 fps | 99.9% |
| Norma 203B | <<locked>> | 98% | 49,530 psi | 90% | 3386 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 96% | 46,804 psi | 85% | 3337 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 92% | 49,139 psi | 89% | 3353 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 88% | 48,269 psi | 88% | 3268 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,489 psi | 61% | 2123 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 49,545 psi | 90% | 3327 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 49,574 psi | 90% | 3461 fps | 97.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 47,137 psi | 86% | 3435 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 90% | 47,050 psi | 85% | 3261 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 96% | 49,037 psi | 89% | 3304 fps | 98.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 45,629 psi | 83% | 3304 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 82% | 49,472 psi | 90% | 3323 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 94% | 48,240 psi | 88% | 3343 fps | 99.6% |
| Shooters World Precision | <<locked>> | 98% | 49,472 psi | 90% | 3340 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 46,572 psi | 85% | 3219 fps | 97.9% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 48,704 psi | 88% | 3323 fps | 99.8% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 48,211 psi | 87% | 3376 fps | 97.4% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 48,675 psi | 88% | 3281 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 48,602 psi | 88% | 3330 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 48,254 psi | 88% | 3215 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 47,558 psi | 86% | 3209 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 47,340 psi | 86% | 3307 fps | 98.7% |
| Somchem S335 | <<locked>> | 92% | 47,427 psi | 86% | 3219 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 47,500 psi | 86% | 3287 fps | 97.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,891 psi | 85% | 3314 fps | 97.7% |
| Vihtavuori N130 | <<locked>> | 88% | 48,341 psi | 88% | 3205 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 47,906 psi | 87% | 3212 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 47,253 psi | 86% | 3291 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 49,414 psi | 90% | 3304 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 45,208 psi | 82% | 3241 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 90% | 46,905 psi | 85% | 3268 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 96% | 47,892 psi | 87% | 3297 fps | 99.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,076 psi | 76% | 3150 fps | 96.3% |
| Winchester 748 | <<locked>> | 92% | 48,385 psi | 88% | 3373 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 94% | 47,645 psi | 86% | 3333 fps | 98% |
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% | 34,780 psi | 63% | 2976 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 45,310 psi | 82% | 3261 fps | 95.7% |
| Accurate 2230 | <<locked>> | 80% | 45,121 psi | 82% | 3258 fps | 96.2% |
| Accurate 2460 | <<locked>> | 80% | 37,478 psi | 68% | 3064 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 27,325 psi | 50% | 2838 fps | 98.4% |
| Accurate 2520 | <<locked>> | 80% | 32,909 psi | 60% | 2992 fps | 96.7% |
| Accurate 4064 | <<locked>> | 80% | 25,860 psi | 47% | 2802 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 43,482 psi | 79% | 3087 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 43,830 psi | 80% | 3104 fps | 99% |
| ADI AR 2206H | <<locked>> | 86% | 38,827 psi | 70% | 3127 fps | 95% |
| ADI AR 2208 | <<locked>> | 94% | 42,482 psi | 77% | 3179 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 42,119 psi | 76% | 3202 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 36,129 psi | 66% | 3028 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 31,966 psi | 58% | 3002 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 38,508 psi | 70% | 3186 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 46,267 psi | 84% | 3386 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 35,679 psi | 65% | 3077 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,755 psi | 72% | 3107 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 41,684 psi | 76% | 3215 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 98% | 41,205 psi | 75% | 3274 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 42,090 psi | 76% | 3071 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 43,308 psi | 79% | 3238 fps | 95% |
| Bofors RP3 | <<locked>> | 90% | 34,998 psi | 64% | 3074 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,274 psi | 66% | 2982 fps | 96.3% |
| Hodgdon BL-C2 | 49.6 gr | 82% | 33,634 psi | 61% | 3031 fps | 95.6% |
| Hodgdon CFE223 | <<locked>> | 86% | 42,946 psi | 78% | 3304 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 38,276 psi | 69% | 3114 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 80% | 39,015 psi | 71% | 3133 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 86% | 39,059 psi | 71% | 3143 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 37,173 psi | 67% | 3143 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,671 psi | 45% | 1860 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 37,782 psi | 69% | 3087 fps | 95.2% |
| IMR 3031 | 43.9 gr | 80% | 30,472 psi | 55% | 2972 fps | 98.3% |
| IMR 4064 | <<locked>> | 92% | 41,843 psi | 76% | 3163 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 40,901 psi | 74% | 3087 fps | 100% |
| IMR 4895 | 51.2 gr | 90% | 40,001 psi | 73% | 3199 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 82% | 36,129 psi | 66% | 3028 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 45,832 psi | 83% | 3258 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 37,391 psi | 68% | 3061 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 29,689 psi | 54% | 2913 fps | 95.4% |
| Lovex S060 | <<locked>> | 86% | 40,219 psi | 73% | 3071 fps | 95.4% |
| Lovex S062 | <<locked>> | 86% | 33,982 psi | 62% | 2992 fps | 95% |
| Norma 200 | <<locked>> | 80% | 45,020 psi | 82% | 3186 fps | 100% |
| Norma 201 | <<locked>> | 84% | 35,592 psi | 65% | 3018 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 31,067 psi | 56% | 2923 fps | 96.7% |
| Norma 203B | <<locked>> | 90% | 38,377 psi | 70% | 3143 fps | 95% |
| Ramshot Big Game | <<locked>> | 92% | 41,031 psi | 74% | 3212 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 39,929 psi | 72% | 3156 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 84% | 42,380 psi | 77% | 3146 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,714 psi | 45% | 1903 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,203 psi | 69% | 3084 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 43,323 psi | 79% | 3330 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 33,997 psi | 62% | 3094 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 34,780 psi | 63% | 2982 fps | 97.5% |
| Rottweil R 902 | <<locked>> | 86% | 35,897 psi | 65% | 3015 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 94% | 37,231 psi | 68% | 3120 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 45,832 psi | 83% | 3258 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,689 psi | 54% | 2913 fps | 95.4% |
| Shooters World Precision | <<locked>> | 86% | 33,982 psi | 62% | 2992 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,364 psi | 73% | 3087 fps | 96.4% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,598 psi | 77% | 3202 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 39,755 psi | 72% | 3189 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,292 psi | 73% | 3117 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 39,784 psi | 72% | 3143 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,243 psi | 60% | 2887 fps | 97.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,905 psi | 49% | 2720 fps | 96.1% |
| Somchem S321 | <<locked>> | 80% | 35,955 psi | 65% | 3051 fps | 96% |
| Somchem S335 | <<locked>> | 80% | 32,663 psi | 59% | 2890 fps | 97.9% |
| Somchem S341 | <<locked>> | 88% | 41,263 psi | 75% | 3159 fps | 95.6% |
| Somchem S355 | <<locked>> | 94% | 38,827 psi | 70% | 3140 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 37,782 psi | 69% | 3002 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,054 psi | 60% | 2900 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 80% | 28,079 psi | 51% | 2851 fps | 98.4% |
| Vihtavuori N140 | <<locked>> | 80% | 29,428 psi | 53% | 2851 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 90% | 32,576 psi | 59% | 2949 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 82% | 35,882 psi | 65% | 3022 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 28,355 psi | 51% | 2831 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 39,218 psi | 71% | 3084 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 32,329 psi | 59% | 2992 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 38,870 psi | 71% | 3143 fps | 95.8% |
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 98 powders for 7.5 x 55 Swiss loaded with the .308 | 115gr | Sierra VarmintKing. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,461 fps; across all powders the maximum-charge window runs from 2,080 fps to 3,461 fps. Accurate 4064 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 115.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, Alliant Reloder- TS 15.5 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. IMR 4895, IMR 3031, Hodgdon BL-C2 rank at the top here: for 7.5 x 55 Swiss with the .308 | 115gr | Sierra VarmintKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 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.