Load Specifications
Load data in caliber .307 Win. with .308 | 170gr | Sierra Pro-Hunter bullet and 80 powders. The key underlying parameters are shown in the table above.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 52,823 psi | 88% | 2365 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 51,271 psi | 85% | 2415 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 53,011 psi | 88% | 2484 fps | 96.2% |
| Accurate 2230 | <<locked>> | 86% | 53,417 psi | 89% | 2497 fps | 96.6% |
| Accurate 2460 | <<locked>> | 92% | 53,359 psi | 89% | 2474 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,850 psi | 83% | 2454 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 54,041 psi | 90% | 2520 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 46,238 psi | 77% | 2431 fps | 99.4% |
| Accurate LT-30 | <<locked>> | 88% | 53,519 psi | 89% | 2382 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 53,940 psi | 90% | 2395 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 98% | 53,679 psi | 89% | 2510 fps | 97.2% |
| ADI AR 2207 | <<locked>> | 86% | 54,172 psi | 90% | 2408 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 52,344 psi | 87% | 2477 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 53,621 psi | 89% | 2484 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 96% | 51,474 psi | 86% | 2487 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 54,404 psi | 90% | 2572 fps | 98% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 46,093 psi | 77% | 2421 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 90% | 51,996 psi | 86% | 2434 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,575 psi | 84% | 2487 fps | 96% |
| Alliant Reloder-7 | <<locked>> | 84% | 52,388 psi | 87% | 2385 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 52,054 psi | 86% | 2379 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 53,447 psi | 89% | 2520 fps | 95.8% |
| Bofors RP3ᴾ | <<locked>> | 100% | 46,006 psi | 76% | 2431 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 94% | 52,939 psi | 88% | 2434 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 96% | 51,053 psi | 85% | 2500 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 94% | 53,142 psi | 88% | 2572 fps | 96.5% |
| Hodgdon H322 | <<locked>> | 92% | 54,433 psi | 90% | 2503 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 51,822 psi | 86% | 2477 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 84% | 52,286 psi | 87% | 2382 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 98% | 54,085 psi | 90% | 2523 fps | 97.8% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 52,156 psi | 87% | 2543 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,359 psi | 55% | 1467 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 52,649 psi | 87% | 2484 fps | 97.5% |
| IMR 3031 | <<locked>> | 98% | 51,837 psi | 86% | 2523 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,763 psi | 84% | 2441 fps | 96% |
| IMR 4198 | <<locked>> | 90% | 52,837 psi | 88% | 2405 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 51,764 psi | 86% | 2516 fps | 97% |
| IMR 8208 XBR | <<locked>> | 96% | 53,621 psi | 89% | 2484 fps | 98.3% |
| Lovex D073.4 | <<locked>> | 86% | 54,027 psi | 90% | 2487 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 92% | 53,606 psi | 89% | 2480 fps | 99% |
| Lovex D073.6 | <<locked>> | 98% | 51,488 psi | 86% | 2493 fps | 99.3% |
| Lovex S053 | <<locked>> | 82% | 54,360 psi | 90% | 2323 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 51,924 psi | 86% | 2415 fps | 96.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,617 psi | 82% | 2444 fps | 97.8% |
| Norma 200 | <<locked>> | 86% | 52,199 psi | 87% | 2415 fps | 100% |
| Norma 201 | <<locked>> | 98% | 52,286 psi | 87% | 2467 fps | 98.2% |
| Norma 202 | <<locked>> | 98% | 52,272 psi | 87% | 2480 fps | 99.7% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,559 psi | 82% | 2474 fps | 96.4% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,198 psi | 83% | 2493 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 96% | 52,794 psi | 88% | 2503 fps | 96.9% |
| Ramshot X-Terminator | <<locked>> | 92% | 52,214 psi | 87% | 2441 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,533 psi | 56% | 1503 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 53,853 psi | 89% | 2484 fps | 99.3% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 53,388 psi | 89% | 2589 fps | 96.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,106 psi | 73% | 2451 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 96% | 53,621 psi | 89% | 2467 fps | 99.6% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 52,402 psi | 87% | 2461 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 86% | 54,027 psi | 90% | 2487 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 98% | 51,488 psi | 86% | 2493 fps | 99.3% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,617 psi | 82% | 2444 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 54,259 psi | 90% | 2454 fps | 98% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 52,141 psi | 87% | 2159 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 52,765 psi | 88% | 2484 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 53,113 psi | 88% | 2451 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 52,025 psi | 86% | 2484 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 52,272 psi | 87% | 2398 fps | 99.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,979 psi | 80% | 2349 fps | 99.7% |
| Somchem S321 | <<locked>> | 92% | 51,213 psi | 85% | 2470 fps | 98.2% |
| Somchem S335 | <<locked>> | 98% | 53,896 psi | 90% | 2438 fps | 99.9% |
| Somchem S341 | <<locked>> | 96% | 51,140 psi | 85% | 2457 fps | 96.5% |
| Vihtavuori N120 | <<locked>> | 86% | 54,099 psi | 90% | 2365 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 52,054 psi | 86% | 2388 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 51,735 psi | 86% | 2395 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,633 psi | 84% | 2454 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 52,968 psi | 88% | 2467 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,496 psi | 71% | 2326 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 96% | 54,172 psi | 90% | 2484 fps | 98.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,995 psi | 85% | 2457 fps | 99.5% |
| Winchester 748 | <<locked>> | 96% | 52,127 psi | 87% | 2520 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 98% | 51,285 psi | 85% | 2490 fps | 97.3% |
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 49,342 psi | 82% | 2320 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,344 psi | 55% | 2123 fps | 98.6% |
| Accurate 2200 | <<locked>> | 84% | 49,443 psi | 82% | 2431 fps | 95.4% |
| Accurate 2230 | <<locked>> | 82% | 46,311 psi | 77% | 2388 fps | 95% |
| Accurate 2460 | <<locked>> | 80% | 35,781 psi | 59% | 2188 fps | 96.6% |
| Accurate 2495 | <<locked>> | 80% | 25,773 psi | 43% | 2008 fps | 96.5% |
| Accurate 2520 | <<locked>> | 82% | 33,475 psi | 56% | 2178 fps | 95.3% |
| Accurate 4064 | <<locked>> | 86% | 29,791 psi | 49% | 2119 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 41,959 psi | 70% | 2211 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 42,337 psi | 70% | 2221 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 92% | 44,556 psi | 74% | 2369 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 45,194 psi | 75% | 2290 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 40,045 psi | 67% | 2287 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 39,175 psi | 65% | 2251 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 30,661 psi | 51% | 2139 fps | 99.7% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 41,901 psi | 70% | 2372 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 40,698 psi | 68% | 2329 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,290 psi | 64% | 2224 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 47,572 psi | 79% | 2438 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 46,412 psi | 77% | 2303 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,538 psi | 67% | 2208 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 50,009 psi | 83% | 2467 fps | 95% |
| Bofors RP3 | <<locked>> | 96% | 40,118 psi | 67% | 2329 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 37,231 psi | 62% | 2175 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 86% | 36,390 psi | 60% | 2254 fps | 95% |
| Hodgdon CFE223 | <<locked>> | 92% | 49,661 psi | 83% | 2520 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 36,666 psi | 61% | 2224 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 80% | 37,072 psi | 62% | 2234 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 80% | 46,253 psi | 77% | 2293 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 42,148 psi | 70% | 2336 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 42,946 psi | 71% | 2392 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,627 psi | 41% | 1306 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 43,584 psi | 72% | 2343 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 29,167 psi | 48% | 2110 fps | 96.5% |
| IMR 4064 | <<locked>> | 98% | 47,747 psi | 79% | 2395 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 39,479 psi | 66% | 2208 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 45,745 psi | 76% | 2425 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 86% | 39,175 psi | 65% | 2251 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 43,656 psi | 73% | 2336 fps | 98% |
| Lovex D073.5 | <<locked>> | 80% | 35,636 psi | 59% | 2188 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 86% | 34,360 psi | 57% | 2208 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 51,111 psi | 85% | 2283 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 46,137 psi | 77% | 2326 fps | 95.6% |
| Lovex S062 | <<locked>> | 92% | 38,870 psi | 65% | 2264 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 43,105 psi | 72% | 2287 fps | 100% |
| Norma 201 | <<locked>> | 88% | 38,595 psi | 64% | 2241 fps | 95% |
| Norma 202 | <<locked>> | 82% | 31,662 psi | 53% | 2123 fps | 95.5% |
| Norma 203B | <<locked>> | 96% | 43,888 psi | 73% | 2382 fps | 95% |
| Ramshot Big Game | <<locked>> | 98% | 46,949 psi | 78% | 2441 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 92% | 46,151 psi | 77% | 2405 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 88% | 45,832 psi | 76% | 2346 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,903 psi | 41% | 1345 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,521 psi | 61% | 2201 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 49,777 psi | 83% | 2533 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 38,885 psi | 65% | 2346 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 33,475 psi | 56% | 2123 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 90% | 38,653 psi | 64% | 2238 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 43,656 psi | 73% | 2336 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,360 psi | 57% | 2208 fps | 95.7% |
| Shooters World Precision | <<locked>> | 92% | 38,870 psi | 65% | 2264 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 41,452 psi | 69% | 2257 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,818 psi | 78% | 2096 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,596 psi | 67% | 2290 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,957 psi | 65% | 2234 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 45,803 psi | 76% | 2388 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,155 psi | 53% | 2057 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 29,254 psi | 49% | 2014 fps | 95.7% |
| Somchem S321 | <<locked>> | 84% | 39,030 psi | 65% | 2270 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 31,256 psi | 52% | 2057 fps | 96.3% |
| Somchem S341 | <<locked>> | 94% | 47,761 psi | 79% | 2408 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 45,266 psi | 75% | 2254 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,622 psi | 61% | 2149 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 31,923 psi | 53% | 2070 fps | 98.2% |
| Vihtavuori N135 | <<locked>> | 80% | 26,963 psi | 45% | 2024 fps | 96.8% |
| Vihtavuori N140 | <<locked>> | 82% | 29,965 psi | 50% | 2067 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 96% | 37,202 psi | 62% | 2231 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 86% | 39,073 psi | 65% | 2247 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 86% | 32,663 psi | 54% | 2142 fps | 95.6% |
| Winchester 748 | <<locked>> | 86% | 37,579 psi | 62% | 2277 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 92% | 42,090 psi | 70% | 2346 fps | 95.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 92 powders for .307 Win. loaded with the .308 | 170gr | Sierra Pro-Hunter. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,589 fps; across all powders the maximum-charge window runs from 1,467 fps to 2,589 fps. Accurate 2495 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. 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. As outliers, Alliant Reloder-17, Hodgdon H380, IMR 4166 Enduron 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.