Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 90gr | Impala LWHV LS bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, IMR 3031 and Accurate 2520.
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>> | 94% | 49,023 psi | 89% | 3606 fps | 99.9% |
| Accurate 2460 | <<locked>> | 90% | 48,066 psi | 87% | 3606 fps | 98.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 48,283 psi | 88% | 3658 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 48,051 psi | 87% | 3652 fps | 97.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,831 psi | 81% | 3615 fps | 98.4% |
| Accurate LT-30 | <<locked>> | 86% | 47,863 psi | 87% | 3501 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 86% | 48,269 psi | 88% | 3507 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 84% | 48,385 psi | 88% | 3583 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 49,501 psi | 90% | 3688 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 94% | 47,877 psi | 87% | 3606 fps | 96% |
| Alliant AR-Comp | <<locked>> | 96% | 47,950 psi | 87% | 3698 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 90% | 49,472 psi | 90% | 3652 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 82% | 47,021 psi | 85% | 3530 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 49,777 psi | 90% | 3540 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 92% | 47,848 psi | 87% | 3553 fps | 96.6% |
| Hodgdon BL-C2 | <<locked>> | 96% | 48,559 psi | 88% | 3688 fps | 97% |
| Hodgdon H322 | <<locked>> | 90% | 47,834 psi | 87% | 3655 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 90% | 49,240 psi | 89% | 3671 fps | 98.6% |
| Hodgdon H4198 | <<locked>> | 84% | 49,530 psi | 90% | 3563 fps | 98.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 49,545 psi | 90% | 3724 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,141 psi | 60% | 2326 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 48,791 psi | 89% | 3743 fps | 99.7% |
| IMR 4198 | <<locked>> | 90% | 49,734 psi | 90% | 3612 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 47,877 psi | 87% | 3606 fps | 96% |
| Lovex D073.4 | <<locked>> | 84% | 47,877 psi | 87% | 3619 fps | 97.5% |
| Lovex D073.5 | <<locked>> | 90% | 48,109 psi | 87% | 3602 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 98% | 48,907 psi | 89% | 3681 fps | 98.1% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,485 psi | 86% | 3612 fps | 96.1% |
| Norma 200 | <<locked>> | 84% | 47,239 psi | 86% | 3576 fps | 100% |
| Norma 201 | <<locked>> | 96% | 47,326 psi | 86% | 3593 fps | 95.9% |
| Norma 202 | <<locked>> | 98% | 49,850 psi | 90% | 3681 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,257 psi | 60% | 2382 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 47,877 psi | 87% | 3615 fps | 97.5% |
| Rottweil R 901 | <<locked>> | 94% | 49,110 psi | 89% | 3625 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 98% | 47,718 psi | 87% | 3586 fps | 96% |
| Shooters World AR Plus | <<locked>> | 84% | 47,877 psi | 87% | 3619 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 98% | 48,907 psi | 89% | 3681 fps | 98.1% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,485 psi | 86% | 3612 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 49,748 psi | 90% | 3297 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 47,181 psi | 86% | 3625 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 49,734 psi | 90% | 3652 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 49,821 psi | 90% | 3566 fps | 98.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 45,455 psi | 82% | 3488 fps | 98.8% |
| Somchem S321 | <<locked>> | 92% | 49,023 psi | 89% | 3655 fps | 96.7% |
| Somchem S335 | <<locked>> | 96% | 48,689 psi | 88% | 3566 fps | 99.1% |
| Vihtavuori N120 | <<locked>> | 84% | 48,341 psi | 88% | 3517 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 47,065 psi | 85% | 3524 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 48,921 psi | 89% | 3566 fps | 99.8% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 47,572 psi | 86% | 3642 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 98% | 47,210 psi | 86% | 3589 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 94% | 48,341 psi | 88% | 3606 fps | 96.1% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 48,849 psi | 89% | 3638 fps | 98.5% |
| Winchester 748 | <<locked>> | 96% | 49,429 psi | 90% | 3711 fps | 97.4% |
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% | 32,314 psi | 59% | 3205 fps | 97.1% |
| Accurate 2460 | <<locked>> | 82% | 37,014 psi | 67% | 3346 fps | 95.5% |
| Accurate 2495 | <<locked>> | 82% | 27,630 psi | 50% | 3127 fps | 95.8% |
| Accurate 2520 | 52.2 gr | 86% | 36,912 psi | 67% | 3389 fps | 95% |
| Accurate 4064 | <<locked>> | 90% | 33,083 psi | 60% | 3314 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 40,118 psi | 73% | 3327 fps | 97.8% |
| Accurate LT-32 | <<locked>> | 80% | 40,495 psi | 73% | 3330 fps | 95.9% |
| ADI AR 2207 | <<locked>> | 80% | 42,801 psi | 78% | 3471 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 38,058 psi | 69% | 3422 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 92% | 44,947 psi | 82% | 3543 fps | 95.2% |
| Alliant AR-Comp | 44.5 gr | 80% | 29,472 psi | 53% | 3219 fps | 98.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,622 psi | 66% | 3360 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,338 psi | 80% | 3471 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,711 psi | 70% | 3297 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 42,743 psi | 78% | 3438 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 92% | 42,699 psi | 77% | 3556 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 35,128 psi | 64% | 3337 fps | 96.2% |
| Hodgdon H335 | <<locked>> | 80% | 35,636 psi | 65% | 3343 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 44,005 psi | 80% | 3442 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 46,557 psi | 84% | 3658 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,598 psi | 45% | 2090 fps | 100% |
| IMR 3031 | 45.6 gr | 82% | 30,110 psi | 55% | 3238 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 37,536 psi | 68% | 3340 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 92% | 44,947 psi | 82% | 3543 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 41,742 psi | 76% | 3481 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 86% | 42,047 psi | 76% | 3468 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 90% | 37,695 psi | 68% | 3425 fps | 95.3% |
| Lovex S062 | <<locked>> | 98% | 44,846 psi | 81% | 3553 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 41,829 psi | 76% | 3458 fps | 99.9% |
| Norma 201 | <<locked>> | 94% | 44,643 psi | 81% | 3533 fps | 95.2% |
| Norma 202 | <<locked>> | 86% | 34,606 psi | 63% | 3314 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,642 psi | 45% | 2139 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 39,740 psi | 72% | 3425 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 84% | 37,086 psi | 67% | 3333 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 96% | 44,976 psi | 82% | 3527 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 41,742 psi | 76% | 3481 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 37,695 psi | 68% | 3425 fps | 95.3% |
| Shooters World Precision | <<locked>> | 98% | 44,846 psi | 81% | 3553 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,875 psi | 81% | 3215 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,827 psi | 70% | 3425 fps | 96.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,579 psi | 66% | 3346 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 37,144 psi | 67% | 3274 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 32,097 psi | 58% | 3146 fps | 95.1% |
| Somchem S321 | <<locked>> | 88% | 42,960 psi | 78% | 3520 fps | 95.1% |
| Somchem S335 | <<locked>> | 82% | 32,576 psi | 59% | 3169 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 42,815 psi | 78% | 3412 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,041 psi | 64% | 3241 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 80% | 30,632 psi | 56% | 3117 fps | 96.3% |
| Vihtavuori N135 | <<locked>> | 82% | 27,789 psi | 50% | 3114 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 88% | 34,853 psi | 63% | 3287 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 92% | 45,266 psi | 82% | 3540 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 90% | 35,766 psi | 65% | 3330 fps | 95.3% |
| Winchester 748 | <<locked>> | 90% | 40,901 psi | 74% | 3514 fps | 95.1% |
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 86 powders for 7.5 x 55 Swiss loaded with the .308 | 90gr | Impala LWHV LS. IMR 3031 delivers the highest muzzle velocity at 3,743 fps; across all powders the maximum-charge window runs from 2,326 fps to 3,743 fps. Accurate 2495 gives the best case fill at 100 %, and 86 of the 86 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. Accurate 2495, Accurate 4064, ADI AR 2208 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 AR-Comp, IMR 3031, Accurate 2520 rank at the top here: for 7.5 x 55 Swiss with the .308 | 90gr | Impala LWHV LS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, ADI AR 2206H 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.