Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 180gr | Barnes X BT bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 and Alliant Reloder-17.
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 2495 | <<locked>> | 86% | 49,763 psi | 90% | 2602 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,964 psi | 87% | 2575 fps | 96.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 38,972 psi | 71% | 2546 fps | 96.5% |
| Accurate 4064 | <<locked>> | 88% | 49,617 psi | 90% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 47,413 psi | 86% | 2713 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 84% | 49,211 psi | 89% | 2664 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 49,835 psi | 90% | 2661 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,341 psi | 88% | 2615 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 48,631 psi | 88% | 2592 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 47,616 psi | 86% | 2762 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 49,734 psi | 90% | 2684 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 47,369 psi | 86% | 2657 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 48,907 psi | 89% | 2759 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 49,487 psi | 90% | 2795 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,724 psi | 68% | 2579 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,249 psi | 75% | 2720 fps | 98.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 48,138 psi | 87% | 2671 fps | 99.5% |
| Bofors RP3 | <<locked>> | 88% | 47,195 psi | 86% | 2654 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 47,790 psi | 87% | 2618 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 82% | 47,282 psi | 86% | 2648 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 48,051 psi | 87% | 2661 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 96% | 49,647 psi | 90% | 2749 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 92% | 47,761 psi | 87% | 2661 fps | 96% |
| Hodgdon H4895 | <<locked>> | 84% | 49,617 psi | 90% | 2674 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,993 psi | 87% | 2684 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 47,921 psi | 87% | 2700 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 46,963 psi | 85% | 2723 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 65% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,572 psi | 86% | 2625 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 49,255 psi | 89% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 49,400 psi | 90% | 2641 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,545 psi | 90% | 2618 fps | 97.5% |
| IMR 4350 | <<locked>> | 96% | 47,210 psi | 86% | 2638 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,124 psi | 89% | 2644 fps | 97.4% |
| IMR 4831 | <<locked>> | 98% | 47,703 psi | 87% | 2700 fps | 99.5% |
| IMR 4895 | <<locked>> | 86% | 48,530 psi | 88% | 2687 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 48,341 psi | 88% | 2615 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 48,762 psi | 88% | 2641 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,226 psi | 89% | 2592 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 49,647 psi | 90% | 2644 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 48,718 psi | 88% | 2644 fps | 98.6% |
| Lovex S070 | <<locked>> | 96% | 49,124 psi | 89% | 2674 fps | 97.8% |
| Norma 201 | <<locked>> | 84% | 48,805 psi | 89% | 2618 fps | 100% |
| Norma 202 | <<locked>> | 84% | 48,559 psi | 88% | 2615 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,516 psi | 90% | 2690 fps | 100% |
| Norma URP | <<locked>> | 98% | 49,385 psi | 90% | 2743 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 88% | 49,110 psi | 89% | 2710 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 98% | 48,588 psi | 88% | 2740 fps | 98.4% |
| Ramshot TAC | <<locked>> | 82% | 48,240 psi | 88% | 2628 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 47,601 psi | 86% | 2648 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 66% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,269 psi | 88% | 2638 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 49,734 psi | 90% | 2759 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 49,226 psi | 89% | 2792 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 49,472 psi | 90% | 2776 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 49,821 psi | 90% | 2799 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 86% | 49,284 psi | 89% | 2615 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 47,021 psi | 85% | 2644 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 47,790 psi | 87% | 2618 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 48,718 psi | 88% | 2644 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,762 psi | 88% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,647 psi | 90% | 2644 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 49,124 psi | 89% | 2674 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 47,790 psi | 87% | 2697 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 46,833 psi | 85% | 2608 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 47,543 psi | 86% | 2635 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,850 psi | 90% | 2552 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,617 psi | 90% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,414 psi | 88% | 2592 fps | 97.4% |
| Somchem S335 | <<locked>> | 84% | 49,472 psi | 90% | 2556 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,153 psi | 89% | 2644 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 47,587 psi | 86% | 2644 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,369 psi | 86% | 2746 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 44,353 psi | 80% | 2635 fps | 96% |
| Vihtavuori N133 | <<locked>> | 84% | 49,850 psi | 90% | 2536 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 48,414 psi | 88% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,747 psi | 88% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 48,414 psi | 88% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 48,921 psi | 89% | 2690 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 82% | 48,747 psi | 88% | 2615 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 47,369 psi | 86% | 2598 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,066 psi | 87% | 2703 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,538 psi | 74% | 2651 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 48,936 psi | 89% | 2667 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 47,761 psi | 87% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 46,760 psi | 85% | 2700 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,953 psi | 62% | 2589 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 84% | 47,007 psi | 85% | 2641 fps | 100% |
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 2495 | <<locked>> | 80% | 41,568 psi | 75% | 2480 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 42,511 psi | 77% | 2480 fps | 95% |
| Accurate 3100 | <<locked>> | 96% | 34,447 psi | 63% | 2454 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 39,233 psi | 71% | 2477 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,400 psi | 55% | 2372 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 43,801 psi | 79% | 2572 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 37,347 psi | 68% | 2431 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,585 psi | 83% | 2569 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 45,585 psi | 83% | 2552 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,436 psi | 72% | 2602 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,999 psi | 67% | 2457 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,726 psi | 72% | 2516 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 82% | 30,966 psi | 56% | 2372 fps | 95.5% |
| Alliant Reloder-17 | 42.3 gr | 80% | 32,198 psi | 58% | 2441 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 88% | 27,238 psi | 49% | 2300 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 92% | 32,300 psi | 59% | 2500 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,554 psi | 77% | 2575 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 36,898 psi | 67% | 2470 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 42,511 psi | 77% | 2526 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,324 psi | 80% | 2598 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,724 psi | 68% | 2470 fps | 97.2% |
| Hodgdon H414 | <<locked>> | 88% | 39,001 psi | 71% | 2552 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 90% | 45,020 psi | 82% | 2612 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 44,135 psi | 80% | 2582 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,108 psi | 49% | 2238 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,842 psi | 72% | 2559 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 90% | 41,307 psi | 75% | 2615 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 49% | 1457 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,221 psi | 77% | 2533 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 43,424 psi | 79% | 2566 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,189 psi | 71% | 2461 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,597 psi | 75% | 2474 fps | 95.7% |
| IMR 4350 | <<locked>> | 92% | 42,061 psi | 76% | 2546 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 41,321 psi | 75% | 2507 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 29,631 psi | 54% | 2329 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 40,582 psi | 74% | 2546 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 45,585 psi | 83% | 2569 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,975 psi | 78% | 2552 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,830 psi | 80% | 2503 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 39,479 psi | 72% | 2470 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 34,708 psi | 63% | 2375 fps | 95.3% |
| Lovex S070 | <<locked>> | 88% | 39,001 psi | 71% | 2490 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 43,366 psi | 79% | 2526 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 43,120 psi | 78% | 2530 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,131 psi | 71% | 2507 fps | 99% |
| Norma URP | <<locked>> | 82% | 30,980 psi | 56% | 2372 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 38,203 psi | 69% | 2516 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 36,071 psi | 65% | 2497 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 45,281 psi | 82% | 2575 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,889 psi | 81% | 2602 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,021 psi | 49% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 37,927 psi | 69% | 2444 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,988 psi | 74% | 2608 fps | 99% |
| ReloadSwiss RS 60 | 42.3 gr | 80% | 34,069 psi | 62% | 2500 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,039 psi | 58% | 2428 fps | 95.7% |
| ReloadSwiss RS 70 | 46.1 gr | 86% | 34,287 psi | 62% | 2477 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 41,394 psi | 75% | 2484 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 35,056 psi | 64% | 2421 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 88% | 42,511 psi | 77% | 2526 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,708 psi | 63% | 2375 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,975 psi | 78% | 2552 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,479 psi | 72% | 2470 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 39,001 psi | 71% | 2490 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,302 psi | 64% | 2461 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,947 psi | 80% | 2556 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,105 psi | 76% | 2539 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,411 psi | 81% | 2470 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,043 psi | 67% | 2352 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 40,248 psi | 73% | 2454 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 44,121 psi | 80% | 2474 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,439 psi | 79% | 2552 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 35,665 psi | 65% | 2421 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 26,440 psi | 48% | 2283 fps | 97.1% |
| Somchem S385 | <<locked>> | 98% | 41,829 psi | 76% | 2589 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 44,440 psi | 81% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,437 psi | 73% | 2461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,988 psi | 74% | 2470 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,953 psi | 62% | 2362 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 30,269 psi | 55% | 2316 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 45,585 psi | 83% | 2566 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 39,552 psi | 72% | 2467 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 31,546 psi | 57% | 2372 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 28,790 psi | 52% | 2372 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,226 psi | 55% | 2293 fps | 97.2% |
| Winchester 748 | <<locked>> | 80% | 44,976 psi | 82% | 2612 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 39,001 psi | 71% | 2552 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,050 psi | 49% | 2365 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,466 psi | 75% | 2546 fps | 99.6% |
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 107 powders for 7.5 x 55 Swiss loaded with the .308 | 180gr | Barnes X BT. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,799 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,799 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 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 180.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 70, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 7.5 x 55 Swiss with the .308 | 180gr | Barnes X BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-22, Alliant Reloder-25 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.