Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 115gr | Lehigh Defense Controlled Chaos bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon LEVERevolution, IMR 4895 and IMR 3031.
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>> | 92% | 49,850 psi | 90% | 3271 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 47,587 psi | 86% | 3297 fps | 96.1% |
| Accurate 2230 | <<locked>> | 82% | 47,761 psi | 87% | 3301 fps | 96.6% |
| Accurate 2460 | <<locked>> | 88% | 48,472 psi | 88% | 3284 fps | 99.7% |
| Accurate 2495 | <<locked>> | 98% | 48,863 psi | 89% | 3320 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 49,356 psi | 90% | 3343 fps | 99.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,472 psi | 88% | 3353 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 84% | 48,530 psi | 88% | 3176 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 48,921 psi | 89% | 3192 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 94% | 49,095 psi | 89% | 3343 fps | 97.5% |
| ADI AR 2207 | <<locked>> | 82% | 49,008 psi | 89% | 3219 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 47,050 psi | 85% | 3268 fps | 96.2% |
| ADI AR 2219 | <<locked>> | 84% | 47,181 psi | 86% | 3294 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 48,849 psi | 89% | 3304 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 92% | 46,688 psi | 85% | 3307 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 49,211 psi | 89% | 3415 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 48,646 psi | 88% | 3428 fps | 96.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,225 psi | 88% | 3343 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 86% | 47,137 psi | 86% | 3245 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 49,429 psi | 90% | 3366 fps | 97.1% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 43,308 psi | 79% | 3310 fps | 96.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 47,282 psi | 86% | 3159 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 48,747 psi | 88% | 3340 fps | 96.2% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,051 psi | 87% | 3356 fps | 98.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 48,457 psi | 88% | 3245 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 92% | 46,644 psi | 85% | 3323 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 90% | 48,414 psi | 88% | 3412 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 88% | 49,255 psi | 89% | 3330 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 47,007 psi | 85% | 3291 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 94% | 49,458 psi | 90% | 3356 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 47,601 psi | 86% | 3373 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,301 psi | 60% | 2064 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 47,877 psi | 87% | 3301 fps | 97.7% |
| IMR 3031 | <<locked>> | 94% | 47,355 psi | 86% | 3360 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 49,400 psi | 90% | 3304 fps | 97% |
| IMR 4198 | <<locked>> | 86% | 48,225 psi | 88% | 3215 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 47,442 psi | 86% | 3350 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 92% | 48,849 psi | 89% | 3304 fps | 98.5% |
| Lovex D073.4 | <<locked>> | 82% | 48,443 psi | 88% | 3297 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 88% | 48,385 psi | 88% | 3284 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 94% | 47,123 psi | 86% | 3317 fps | 99.5% |
| Lovex S060 | <<locked>> | 92% | 47,413 psi | 86% | 3215 fps | 97% |
| Lovex S062 | <<locked>> | 98% | 48,356 psi | 88% | 3310 fps | 98.5% |
| Norma 200 | <<locked>> | 82% | 47,137 psi | 86% | 3219 fps | 100% |
| Norma 201 | <<locked>> | 94% | 47,790 psi | 87% | 3284 fps | 98.4% |
| Norma 202 | <<locked>> | 94% | 47,877 psi | 87% | 3304 fps | 99.8% |
| Norma 203B | <<locked>> | 98% | 48,530 psi | 88% | 3356 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 98% | 49,153 psi | 89% | 3373 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 92% | 48,109 psi | 87% | 3323 fps | 97.3% |
| Ramshot X-Terminator | <<locked>> | 88% | 47,239 psi | 86% | 3238 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,475 psi | 61% | 2116 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 48,660 psi | 88% | 3301 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 48,486 psi | 88% | 3428 fps | 96.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,296 psi | 84% | 3406 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 92% | 49,023 psi | 89% | 3291 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 96% | 48,167 psi | 87% | 3281 fps | 98.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 44,541 psi | 81% | 3274 fps | 97.4% |
| Shooters World AR Plus | <<locked>> | 82% | 48,443 psi | 88% | 3297 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 94% | 47,123 psi | 86% | 3317 fps | 99.5% |
| Shooters World Precision | <<locked>> | 98% | 48,356 psi | 88% | 3310 fps | 98.5% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 48,776 psi | 89% | 3248 fps | 98.1% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 47,819 psi | 87% | 3297 fps | 99.7% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,355 psi | 86% | 3350 fps | 97% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 47,877 psi | 87% | 3258 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 47,601 psi | 86% | 3301 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 47,645 psi | 86% | 3196 fps | 99.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 49,603 psi | 90% | 3235 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 49,821 psi | 90% | 3346 fps | 98.9% |
| Somchem S335 | <<locked>> | 94% | 49,313 psi | 89% | 3241 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 49,806 psi | 90% | 3320 fps | 97.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 45,876 psi | 83% | 3284 fps | 97.4% |
| Vihtavuori N120 | <<locked>> | 82% | 48,994 psi | 89% | 3156 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 47,645 psi | 86% | 3186 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 47,239 psi | 86% | 3192 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 49,182 psi | 89% | 3314 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 48,283 psi | 88% | 3278 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,193 psi | 80% | 3212 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 92% | 49,124 psi | 89% | 3301 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 96% | 46,862 psi | 85% | 3271 fps | 99.6% |
| Winchester 748 | <<locked>> | 92% | 47,630 psi | 86% | 3346 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 94% | 46,630 psi | 85% | 3304 fps | 97.6% |
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% | 34,069 psi | 62% | 2949 fps | 99.4% |
| Accurate 2200 | <<locked>> | 80% | 44,324 psi | 80% | 3228 fps | 95.2% |
| Accurate 2230 | <<locked>> | 80% | 44,425 psi | 81% | 3232 fps | 95.8% |
| Accurate 2460 | <<locked>> | 80% | 36,854 psi | 67% | 3041 fps | 98% |
| Accurate 2495 | <<locked>> | 80% | 26,643 psi | 48% | 2812 fps | 98% |
| Accurate 2520 | <<locked>> | 80% | 32,300 psi | 59% | 2969 fps | 96.3% |
| Accurate 4064 | <<locked>> | 82% | 26,977 psi | 49% | 2835 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 42,786 psi | 78% | 3064 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 80% | 43,134 psi | 78% | 3077 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 88% | 40,480 psi | 73% | 3156 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 46,166 psi | 84% | 3169 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 44,208 psi | 80% | 3209 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 41,133 psi | 75% | 3169 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 35,520 psi | 64% | 3005 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 31,314 psi | 57% | 2976 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 37,753 psi | 69% | 3159 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 45,411 psi | 82% | 3353 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 37,202 psi | 68% | 3110 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,928 psi | 71% | 3084 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 43,555 psi | 79% | 3248 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 98% | 40,422 psi | 73% | 3241 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,524 psi | 75% | 3051 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 45,571 psi | 83% | 3278 fps | 95.4% |
| Bofors RP3 | <<locked>> | 92% | 36,521 psi | 66% | 3107 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,650 psi | 65% | 2959 fps | 95.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 33,040 psi | 60% | 3005 fps | 95.2% |
| Hodgdon CFE223 | <<locked>> | 86% | 41,989 psi | 76% | 3274 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 37,565 psi | 68% | 3091 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 80% | 38,145 psi | 69% | 3104 fps | 98.5% |
| Hodgdon H4895 | <<locked>> | 86% | 38,218 psi | 69% | 3114 fps | 95.4% |
| Hodgdon LEVERevolution | 51.3 gr | 88% | 36,535 psi | 66% | 3117 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,526 psi | 45% | 1847 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 39,610 psi | 72% | 3123 fps | 95.7% |
| IMR 3031 | 43.2 gr | 80% | 29,965 psi | 54% | 2949 fps | 98% |
| IMR 4064 | <<locked>> | 94% | 43,526 psi | 79% | 3189 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 40,292 psi | 73% | 3064 fps | 100% |
| IMR 4895 | 50.2 gr | 90% | 38,972 psi | 71% | 3163 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 82% | 35,520 psi | 64% | 3005 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 45,078 psi | 82% | 3232 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 36,564 psi | 66% | 3035 fps | 96.7% |
| Lovex D073.6 | <<locked>> | 82% | 31,067 psi | 56% | 2946 fps | 95.8% |
| Lovex S060 | <<locked>> | 88% | 41,945 psi | 76% | 3100 fps | 95.7% |
| Lovex S062 | <<locked>> | 88% | 35,389 psi | 64% | 3022 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 44,164 psi | 80% | 3166 fps | 100% |
| Norma 201 | <<locked>> | 84% | 34,983 psi | 63% | 2992 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 30,429 psi | 55% | 2897 fps | 96.3% |
| Norma 203B | <<locked>> | 92% | 40,045 psi | 73% | 3176 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 94% | 42,960 psi | 78% | 3245 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 41,945 psi | 76% | 3196 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 41,655 psi | 76% | 3120 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,569 psi | 45% | 1893 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,347 psi | 68% | 3054 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 42,308 psi | 77% | 3294 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 33,243 psi | 60% | 3058 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 34,055 psi | 62% | 2956 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 86% | 35,302 psi | 64% | 2992 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 94% | 36,419 psi | 66% | 3091 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 45,078 psi | 82% | 3232 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 31,067 psi | 56% | 2946 fps | 95.8% |
| Shooters World Precision | <<locked>> | 88% | 35,389 psi | 64% | 3022 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 39,813 psi | 72% | 3064 fps | 96.1% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 41,727 psi | 76% | 3176 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 41,379 psi | 75% | 3219 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,465 psi | 72% | 3091 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 41,800 psi | 76% | 3179 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,561 psi | 59% | 2861 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,397 psi | 48% | 2694 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 35,389 psi | 64% | 3028 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 32,082 psi | 58% | 2867 fps | 97.6% |
| Somchem S341 | <<locked>> | 88% | 40,524 psi | 74% | 3133 fps | 95.2% |
| Somchem S355 | <<locked>> | 94% | 37,826 psi | 69% | 3107 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 46,209 psi | 84% | 3110 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,072 psi | 67% | 2979 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,387 psi | 59% | 2874 fps | 99% |
| Vihtavuori N135 | <<locked>> | 80% | 27,427 psi | 50% | 2825 fps | 98.1% |
| Vihtavuori N140 | <<locked>> | 80% | 28,863 psi | 52% | 2825 fps | 96% |
| Vihtavuori N150 | <<locked>> | 92% | 34,026 psi | 62% | 2979 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 82% | 35,288 psi | 64% | 2995 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 82% | 29,646 psi | 54% | 2864 fps | 95.8% |
| Winchester 748 | <<locked>> | 82% | 33,866 psi | 61% | 3028 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 38,130 psi | 69% | 3117 fps | 95.4% |
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 | Lehigh Defense Controlled Chaos. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,428 fps; across all powders the maximum-charge window runs from 2,064 fps to 3,428 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 60–90 %, leaving at least 10 % headroom. The 115.0 gr projectile in 0.308" calls for a 1:13.0 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. Hodgdon LEVERevolution, IMR 4895, IMR 3031 rank at the top here: for 7.5 x 55 Swiss with the .308 | 115gr | Lehigh Defense Controlled Chaos they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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.