Load Specifications
Bullet Manufacturer:Berger
Bullet Weight:205 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:7.5 x 55 Swiss load data
Case Length (l3):2.188"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:65 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:31"
Max. allowed Pressure:55,114 psi
Recommended Twist Rate:1:11.0
Load data in caliber 7.5 x 55 Swiss with .308 | 205gr | Berger Elite Hunter bullet and 100 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance 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.
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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 2495 | <<locked>> | 86% | 48,341 psi | 88% | 2421 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 49,763 psi | 90% | 2477 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,805 psi | 87% | 2425 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 38,406 psi | 70% | 2395 fps | 97.7% |
| Accurate 4064 | <<locked>> | 88% | 48,240 psi | 88% | 2464 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 46,978 psi | 85% | 2543 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 49,081 psi | 89% | 2493 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 47,123 psi | 86% | 2454 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 46,543 psi | 84% | 2526 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,211 psi | 87% | 2448 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 48,428 psi | 88% | 2415 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 47,979 psi | 87% | 2602 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 46,238 psi | 84% | 2530 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 49,719 psi | 90% | 2516 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 47,297 psi | 86% | 2493 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,211 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 49,763 psi | 90% | 2628 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 45,556 psi | 83% | 2520 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,115 psi | 67% | 2425 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 32,953 psi | 60% | 2336 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,031 psi | 74% | 2572 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 48,341 psi | 88% | 2510 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 46,702 psi | 85% | 2484 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 47,558 psi | 86% | 2464 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 46,934 psi | 85% | 2477 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 47,834 psi | 87% | 2500 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 46,775 psi | 85% | 2543 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 92% | 48,211 psi | 87% | 2510 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 49,516 psi | 90% | 2503 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,399 psi | 88% | 2526 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 48,240 psi | 88% | 2533 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 47,050 psi | 85% | 2572 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,331 psi | 64% | 1509 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,659 psi | 86% | 2464 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 49,139 psi | 89% | 2477 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 49,603 psi | 90% | 2480 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,690 psi | 90% | 2464 fps | 98.6% |
| IMR 4350 | <<locked>> | 96% | 47,456 psi | 86% | 2487 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,400 psi | 90% | 2493 fps | 98.6% |
| IMR 4831 | <<locked>> | 98% | 47,935 psi | 87% | 2539 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 48,486 psi | 88% | 2520 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 48,211 psi | 87% | 2448 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 48,182 psi | 87% | 2467 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,081 psi | 89% | 2428 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 49,400 psi | 90% | 2477 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 48,588 psi | 88% | 2487 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 49,008 psi | 89% | 2516 fps | 98.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 31,792 psi | 58% | 2264 fps | 95.8% |
| Norma 201 | <<locked>> | 84% | 48,022 psi | 87% | 2444 fps | 100% |
| Norma 202 | <<locked>> | 84% | 48,269 psi | 88% | 2444 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,356 psi | 90% | 2523 fps | 100% |
| Norma 204 | <<locked>> | 96% | 47,297 psi | 86% | 2526 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 41,394 psi | 75% | 2533 fps | 97.3% |
| Norma URP | <<locked>> | 96% | 46,673 psi | 85% | 2536 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 49,443 psi | 90% | 2546 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 48,602 psi | 88% | 2582 fps | 99.3% |
| Ramshot TAC | <<locked>> | 82% | 48,051 psi | 87% | 2467 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 47,761 psi | 87% | 2487 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 65% | 1545 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,298 psi | 88% | 2484 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 46,789 psi | 85% | 2543 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 49,705 psi | 90% | 2625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 46,456 psi | 84% | 2566 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 46,934 psi | 85% | 2595 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 49,472 psi | 90% | 2428 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 48,646 psi | 88% | 2444 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 49,806 psi | 90% | 2520 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 48,124 psi | 87% | 2500 fps | 95.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 43,874 psi | 80% | 2500 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 92% | 47,558 psi | 86% | 2464 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 48,588 psi | 88% | 2487 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,182 psi | 87% | 2467 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,400 psi | 90% | 2477 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 49,008 psi | 89% | 2516 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 47,964 psi | 87% | 2533 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 49,806 psi | 90% | 2493 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 47,384 psi | 86% | 2470 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,661 psi | 90% | 2385 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,458 psi | 90% | 2385 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,588 psi | 88% | 2441 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 43,497 psi | 79% | 2497 fps | 96.4% |
| Somchem S335 | <<locked>> | 84% | 49,008 psi | 89% | 2385 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,313 psi | 89% | 2484 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 47,485 psi | 86% | 2480 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,543 psi | 86% | 2579 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 44,382 psi | 81% | 2484 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 82% | 47,079 psi | 85% | 2333 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 48,051 psi | 87% | 2408 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,733 psi | 88% | 2425 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 48,414 psi | 88% | 2457 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 48,979 psi | 89% | 2530 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 82% | 48,573 psi | 88% | 2448 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 47,094 psi | 85% | 2431 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,022 psi | 87% | 2539 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,147 psi | 73% | 2490 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 49,414 psi | 90% | 2513 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 48,008 psi | 87% | 2490 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 47,065 psi | 85% | 2549 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,040 psi | 60% | 2441 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 46,963 psi | 85% | 2477 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% | 39,682 psi | 72% | 2300 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,586 psi | 85% | 2434 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 39,421 psi | 72% | 2283 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 31,357 psi | 57% | 2257 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 37,521 psi | 68% | 2303 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 27,282 psi | 50% | 2165 fps | 96% |
| ADI AR 2206H | <<locked>> | 80% | 43,410 psi | 79% | 2408 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 36,825 psi | 67% | 2280 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 96% | 41,133 psi | 75% | 2431 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,484 psi | 83% | 2408 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 45,469 psi | 83% | 2379 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,204 psi | 71% | 2448 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 40,654 psi | 74% | 2431 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,318 psi | 66% | 2300 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,175 psi | 71% | 2359 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 28,514 psi | 52% | 2182 fps | 96.2% |
| Alliant Reloder-17 | 40.7 gr | 80% | 31,415 psi | 57% | 2290 fps | 98.9% |
| Alliant Reloder-19 | <<locked>> | 96% | 40,118 psi | 73% | 2425 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 24,526 psi | 45% | 2106 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 98% | 31,009 psi | 56% | 2287 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 29,312 psi | 53% | 2303 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,308 psi | 77% | 2415 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 35,940 psi | 65% | 2306 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 37,231 psi | 68% | 2283 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,976 psi | 80% | 2431 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,782 psi | 67% | 2310 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 84% | 34,026 psi | 62% | 2306 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 86% | 39,769 psi | 72% | 2369 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,816 psi | 80% | 2418 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 25,947 psi | 47% | 2090 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,566 psi | 72% | 2398 fps | 100% |
| Hodgdon Superformance | 46.2 gr | 86% | 35,723 psi | 65% | 2362 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,469 psi | 48% | 1352 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,858 psi | 76% | 2372 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 43,395 psi | 79% | 2398 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,653 psi | 70% | 2303 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,089 psi | 75% | 2323 fps | 97% |
| IMR 4350 | <<locked>> | 88% | 37,014 psi | 67% | 2306 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 36,477 psi | 66% | 2267 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 26,803 psi | 49% | 2133 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 40,132 psi | 73% | 2385 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 45,484 psi | 83% | 2408 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,163 psi | 77% | 2382 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,497 psi | 79% | 2343 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 38,566 psi | 70% | 2306 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 31,662 psi | 57% | 2178 fps | 95.8% |
| Lovex S070 | <<locked>> | 84% | 33,953 psi | 62% | 2247 fps | 95.4% |
| Lovex S071 | <<locked>> | 98% | 29,834 psi | 54% | 2221 fps | 95% |
| Norma 201 | <<locked>> | 80% | 42,424 psi | 77% | 2359 fps | 100% |
| Norma 202 | <<locked>> | 80% | 42,612 psi | 77% | 2362 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,566 psi | 70% | 2349 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 41,466 psi | 75% | 2425 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 36,158 psi | 66% | 2428 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 28,021 psi | 51% | 2169 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 37,855 psi | 69% | 2359 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 31,227 psi | 57% | 2251 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 45,179 psi | 82% | 2421 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,556 psi | 81% | 2438 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,672 psi | 48% | 1381 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 37,188 psi | 67% | 2293 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,756 psi | 74% | 2448 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,446 psi | 61% | 2346 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 27,282 psi | 50% | 2178 fps | 95.3% |
| ReloadSwiss RS 70 | 42.3 gr | 82% | 29,501 psi | 54% | 2231 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 46,369 psi | 84% | 2382 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,524 psi | 74% | 2320 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 33,707 psi | 61% | 2257 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 98% | 45,107 psi | 82% | 2454 fps | 95% |
| Rottweil R 905 | <<locked>> | 96% | 38,696 psi | 70% | 2405 fps | 95% |
| Rottweil R 907 | <<locked>> | 84% | 37,231 psi | 68% | 2283 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 31,662 psi | 57% | 2178 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,163 psi | 77% | 2382 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,566 psi | 70% | 2306 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 33,953 psi | 62% | 2247 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,650 psi | 63% | 2303 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,439 psi | 79% | 2398 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,698 psi | 76% | 2382 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,063 psi | 80% | 2306 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,579 psi | 66% | 2198 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 34,882 psi | 63% | 2215 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 40,698 psi | 74% | 2444 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 43,424 psi | 79% | 2306 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,076 psi | 78% | 2392 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 34,679 psi | 63% | 2264 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 25,237 psi | 46% | 2133 fps | 98.1% |
| Somchem S385 | <<locked>> | 94% | 36,419 psi | 66% | 2343 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 44,353 psi | 80% | 2297 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,958 psi | 73% | 2293 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,321 psi | 73% | 2303 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,851 psi | 60% | 2201 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 29,414 psi | 53% | 2169 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 80% | 45,484 psi | 83% | 2402 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 38,841 psi | 70% | 2303 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 28,718 psi | 52% | 2172 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 84% | 24,279 psi | 44% | 2123 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,254 psi | 53% | 2149 fps | 98.2% |
| Winchester 748 | <<locked>> | 80% | 44,976 psi | 82% | 2444 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 34,026 psi | 62% | 2306 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 88% | 22,843 psi | 41% | 2116 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,220 psi | 75% | 2388 fps | 100% |
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 100 powders for 7.5 x 55 Swiss loaded with the .308 | 205gr | Berger Elite Hunter. Alliant Reloder-17 delivers the highest muzzle velocity at 2,628 fps; across all powders the maximum-charge window runs from 1,509 fps to 2,628 fps. Accurate 3100 gives the best case fill at 100 %, and 100 of the 100 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 205.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7.5 x 55 Swiss with the .308 | 205gr | Berger Elite Hunter they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.