Load Specifications
Load data in caliber .307 Win. with .308 | 165gr | Swift A-Frame bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Hodgdon H322 and SNPE Vectan SP 10.
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>> | 84% | 52,112 psi | 87% | 2365 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 53,127 psi | 88% | 2451 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 51,851 psi | 86% | 2464 fps | 99.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 44,541 psi | 74% | 2395 fps | 99.9% |
| Accurate 2520 | <<locked>> | 98% | 52,243 psi | 87% | 2503 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,466 psi | 69% | 2369 fps | 98.1% |
| Accurate LT-30 | <<locked>> | 90% | 52,794 psi | 88% | 2379 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 90% | 53,258 psi | 88% | 2392 fps | 98.9% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 52,141 psi | 87% | 2493 fps | 96% |
| ADI AR 2207 | <<locked>> | 88% | 53,026 psi | 88% | 2411 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 51,387 psi | 85% | 2474 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 98% | 51,953 psi | 86% | 2464 fps | 97.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 52,852 psi | 88% | 2523 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 52,794 psi | 88% | 2556 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 94% | 53,650 psi | 89% | 2470 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 51,503 psi | 86% | 2385 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 51,372 psi | 85% | 2379 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 52,141 psi | 87% | 2425 fps | 97.9% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 53,258 psi | 88% | 2539 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 94% | 53,171 psi | 88% | 2500 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 94% | 54,215 psi | 90% | 2516 fps | 99.4% |
| Hodgdon H4198 | <<locked>> | 86% | 52,040 psi | 86% | 2385 fps | 99.6% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 52,373 psi | 87% | 2503 fps | 96.7% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,108 psi | 78% | 2464 fps | 95.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,924 psi | 55% | 1460 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 51,198 psi | 85% | 2467 fps | 96.3% |
| IMR 3031ᴾ | <<locked>> | 100% | 49,893 psi | 83% | 2510 fps | 99.9% |
| IMR 4198 | <<locked>> | 92% | 51,866 psi | 86% | 2405 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 51,808 psi | 86% | 2336 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 51,953 psi | 86% | 2464 fps | 97.3% |
| Lovex D073.4 | <<locked>> | 88% | 52,591 psi | 87% | 2477 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 94% | 51,764 psi | 86% | 2464 fps | 98.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 49,545 psi | 82% | 2477 fps | 98.5% |
| Lovex S053 | <<locked>> | 84% | 53,577 psi | 89% | 2326 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 54,157 psi | 90% | 2448 fps | 96.3% |
| Lovex S062ᴾ | <<locked>> | 100% | 45,179 psi | 75% | 2379 fps | 96% |
| Norma 200 | <<locked>> | 90% | 54,128 psi | 90% | 2454 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,952 psi | 85% | 2451 fps | 97.2% |
| Norma 202ᴾ | <<locked>> | 100% | 50,836 psi | 84% | 2470 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,750 psi | 54% | 1493 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 52,025 psi | 86% | 2375 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 52,417 psi | 87% | 2470 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 98% | 51,895 psi | 86% | 2454 fps | 99.1% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 47,819 psi | 79% | 2398 fps | 96.5% |
| Shooters World AR Plus | <<locked>> | 88% | 52,591 psi | 87% | 2477 fps | 98.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 49,545 psi | 82% | 2477 fps | 98.5% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 45,179 psi | 75% | 2379 fps | 96% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 53,200 psi | 88% | 2441 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 54,186 psi | 90% | 2195 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 51,634 psi | 86% | 2477 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 51,750 psi | 86% | 2441 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 54,404 psi | 90% | 2431 fps | 99.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 43,656 psi | 73% | 2297 fps | 98.8% |
| Somchem S321 | <<locked>> | 96% | 53,345 psi | 89% | 2507 fps | 97.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 52,663 psi | 87% | 2431 fps | 99.7% |
| Somchem S341ᴾ | <<locked>> | 100% | 53,316 psi | 89% | 2490 fps | 95.9% |
| Vihtavuori N120 | <<locked>> | 88% | 53,055 psi | 88% | 2369 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 54,056 psi | 90% | 2421 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 53,519 psi | 89% | 2428 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 45,498 psi | 76% | 2398 fps | 99.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,080 psi | 80% | 2408 fps | 99% |
| Vihtavuori N530 | <<locked>> | 98% | 53,026 psi | 88% | 2474 fps | 97.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,470 psi | 77% | 2402 fps | 98.4% |
| Winchester 748ᴾ | <<locked>> | 100% | 53,896 psi | 90% | 2549 fps | 98.5% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 49,588 psi | 82% | 2470 fps | 96% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 45,803 psi | 76% | 2280 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,458 psi | 51% | 2070 fps | 97.2% |
| Accurate 2460 | <<locked>> | 82% | 34,664 psi | 58% | 2175 fps | 95.3% |
| Accurate 2495 | <<locked>> | 82% | 24,468 psi | 41% | 1991 fps | 95% |
| Accurate 2520 | <<locked>> | 88% | 36,999 psi | 61% | 2260 fps | 95.7% |
| Accurate 4064 | <<locked>> | 92% | 31,923 psi | 53% | 2182 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 39,204 psi | 65% | 2169 fps | 98.2% |
| Accurate LT-32 | <<locked>> | 80% | 39,552 psi | 66% | 2175 fps | 96.4% |
| ADI AR 2206H | <<locked>> | 98% | 48,863 psi | 81% | 2444 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 41,553 psi | 69% | 2254 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,825 psi | 61% | 2234 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 92% | 43,308 psi | 72% | 2333 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 27,775 psi | 46% | 2080 fps | 98.6% |
| Alliant Power Pro 1200-R | 34.9 gr | 90% | 46,180 psi | 77% | 2454 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,085 psi | 58% | 2175 fps | 99.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,743 psi | 71% | 2260 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,362 psi | 62% | 2159 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 88% | 40,959 psi | 68% | 2247 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 92% | 40,234 psi | 67% | 2333 fps | 95.2% |
| Hodgdon H322 | 31 gr | 80% | 33,562 psi | 56% | 2169 fps | 96.4% |
| Hodgdon H335 | <<locked>> | 80% | 33,953 psi | 56% | 2178 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 43,207 psi | 72% | 2251 fps | 98.5% |
| Hodgdon H4895 | <<locked>> | 96% | 46,427 psi | 77% | 2415 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 44,208 psi | 73% | 2415 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,381 psi | 41% | 1302 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 48,022 psi | 80% | 2418 fps | 95.6% |
| IMR 3031 | <<locked>> | 82% | 28,514 psi | 47% | 2100 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 36,521 psi | 61% | 2165 fps | 99.8% |
| IMR 4227 | <<locked>> | 80% | 48,805 psi | 81% | 2297 fps | 100% |
| IMR 8208 XBR | <<locked>> | 92% | 43,308 psi | 72% | 2333 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 39,856 psi | 66% | 2277 fps | 96.2% |
| Lovex D073.5 | <<locked>> | 86% | 39,508 psi | 66% | 2270 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 90% | 35,288 psi | 59% | 2238 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 47,761 psi | 79% | 2254 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 48,124 psi | 80% | 2359 fps | 95% |
| Lovex S062 | <<locked>> | 98% | 42,380 psi | 70% | 2333 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 39,711 psi | 66% | 2244 fps | 99.9% |
| Norma 201 | <<locked>> | 94% | 42,293 psi | 70% | 2316 fps | 95.2% |
| Norma 202 | <<locked>> | 88% | 34,838 psi | 58% | 2201 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,337 psi | 40% | 1335 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 48,805 psi | 81% | 2333 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 37,956 psi | 63% | 2234 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 84% | 34,606 psi | 57% | 2156 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 96% | 42,337 psi | 70% | 2310 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 39,856 psi | 66% | 2277 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 35,288 psi | 59% | 2238 fps | 95% |
| Shooters World Precision | <<locked>> | 98% | 42,380 psi | 70% | 2333 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 46,601 psi | 77% | 2346 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,193 psi | 73% | 2077 fps | 100% |
| SNPE Vectan SP 10 | 33.2 gr | 80% | 37,231 psi | 62% | 2238 fps | 96.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,694 psi | 59% | 2182 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 33,257 psi | 55% | 2087 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 30,356 psi | 50% | 2044 fps | 95.1% |
| Somchem S321 | <<locked>> | 88% | 40,915 psi | 68% | 2313 fps | 95% |
| Somchem S335 | <<locked>> | 82% | 30,472 psi | 51% | 2047 fps | 95% |
| Somchem S341 | <<locked>> | 98% | 49,545 psi | 82% | 2438 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 41,684 psi | 69% | 2218 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,707 psi | 56% | 2103 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 80% | 29,327 psi | 49% | 2021 fps | 96.6% |
| Vihtavuori N135 | <<locked>> | 82% | 25,991 psi | 43% | 2011 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 88% | 33,054 psi | 55% | 2146 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 92% | 43,468 psi | 72% | 2329 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 90% | 33,721 psi | 56% | 2172 fps | 95% |
| Winchester 748 | <<locked>> | 90% | 39,088 psi | 65% | 2310 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 98% | 46,470 psi | 77% | 2421 fps | 95.2% |
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 65 powders for .307 Win. loaded with the .308 | 165gr | Swift A-Frame. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,556 fps; across all powders the maximum-charge window runs from 1,460 fps to 2,556 fps. Accurate 2495 gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2206H 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 Power Pro 1200-R, Hodgdon H322, SNPE Vectan SP 10 rank at the top here: for .307 Win. with the .308 | 165gr | Swift A-Frame 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.