Load Specifications
Load data in caliber .307 Win. with .308 | 150gr | Swift A-Frame bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Hodgdon H335 and Hodgdon H322.
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>> | 86% | 54,070 psi | 90% | 2526 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 54,404 psi | 90% | 2605 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 53,505 psi | 89% | 2618 fps | 98.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 42,467 psi | 71% | 2493 fps | 99.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 53,867 psi | 89% | 2661 fps | 98.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 39,479 psi | 66% | 2457 fps | 96.8% |
| Accurate LT-30 | <<locked>> | 92% | 54,462 psi | 90% | 2536 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 90% | 51,692 psi | 86% | 2500 fps | 98.1% |
| ADI AR 2207 | <<locked>> | 90% | 54,418 psi | 90% | 2572 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 52,721 psi | 88% | 2631 fps | 99.5% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 53,708 psi | 89% | 2621 fps | 96.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 50,444 psi | 84% | 2631 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 53,925 psi | 90% | 2710 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 94% | 51,996 psi | 86% | 2589 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 52,852 psi | 88% | 2543 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 52,765 psi | 88% | 2530 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 98% | 53,403 psi | 89% | 2575 fps | 97.4% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 50,923 psi | 85% | 2638 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 94% | 51,024 psi | 85% | 2605 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 94% | 52,069 psi | 87% | 2625 fps | 98.7% |
| Hodgdon H4198 | <<locked>> | 88% | 53,592 psi | 89% | 2539 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,692 psi | 54% | 1549 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,979 psi | 80% | 2618 fps | 99.5% |
| IMR 4198 | <<locked>> | 94% | 53,301 psi | 89% | 2562 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 53,606 psi | 89% | 2500 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 53,708 psi | 89% | 2621 fps | 96.8% |
| Lovex D073.4 | <<locked>> | 90% | 54,331 psi | 90% | 2635 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 96% | 53,708 psi | 89% | 2621 fps | 97.7% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 47,456 psi | 79% | 2579 fps | 97.4% |
| Lovex S053 | <<locked>> | 84% | 51,982 psi | 86% | 2448 fps | 100% |
| Norma 200 | <<locked>> | 90% | 52,040 psi | 86% | 2569 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 49,110 psi | 82% | 2552 fps | 95.9% |
| Norma 202ᴾ | <<locked>> | 100% | 48,863 psi | 81% | 2575 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,430 psi | 54% | 1581 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 53,272 psi | 89% | 2530 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 53,969 psi | 90% | 2628 fps | 98.2% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 53,127 psi | 88% | 2605 fps | 98.7% |
| Shooters World AR Plus | <<locked>> | 90% | 54,331 psi | 90% | 2635 fps | 98.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 47,456 psi | 79% | 2579 fps | 97.4% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 51,285 psi | 85% | 2543 fps | 95.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 53,011 psi | 88% | 2320 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 53,505 psi | 89% | 2638 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 52,750 psi | 88% | 2595 fps | 99.8% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 52,417 psi | 87% | 2536 fps | 98.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,930 psi | 70% | 2388 fps | 97.8% |
| Somchem S321 | <<locked>> | 96% | 51,329 psi | 85% | 2612 fps | 96.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 50,865 psi | 85% | 2539 fps | 99.1% |
| Vihtavuori N120 | <<locked>> | 88% | 51,503 psi | 86% | 2490 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 52,417 psi | 87% | 2539 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 51,474 psi | 86% | 2539 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 43,366 psi | 72% | 2497 fps | 99.5% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 46,151 psi | 77% | 2510 fps | 98.1% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 54,404 psi | 90% | 2625 fps | 96.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 44,440 psi | 74% | 2493 fps | 97.2% |
| Winchester 748ᴾ | <<locked>> | 100% | 51,909 psi | 86% | 2654 fps | 97.4% |
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% | 44,585 psi | 74% | 2388 fps | 99.8% |
| Accurate 2015 | <<locked>> | 80% | 29,138 psi | 48% | 2152 fps | 95.7% |
| Accurate 2460 | <<locked>> | 86% | 38,043 psi | 63% | 2365 fps | 95.5% |
| Accurate 2495 | <<locked>> | 86% | 26,556 psi | 44% | 2156 fps | 95% |
| Accurate 2520 | <<locked>> | 90% | 38,000 psi | 63% | 2402 fps | 95% |
| Accurate 4064 | <<locked>> | 96% | 34,708 psi | 58% | 2362 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 37,898 psi | 63% | 2264 fps | 97.1% |
| Accurate LT-32 | <<locked>> | 80% | 38,290 psi | 64% | 2270 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 40,089 psi | 67% | 2362 fps | 100% |
| ADI AR 2219 | 33.5 gr | 80% | 35,389 psi | 59% | 2326 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 96% | 47,195 psi | 78% | 2523 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 26,861 psi | 45% | 2165 fps | 97.4% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 50,575 psi | 84% | 2657 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,707 psi | 56% | 2270 fps | 98.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 41,539 psi | 69% | 2365 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,143 psi | 60% | 2254 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 92% | 44,628 psi | 74% | 2434 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 96% | 44,454 psi | 74% | 2533 fps | 95.4% |
| Hodgdon H322 | 33.2 gr | 82% | 34,534 psi | 57% | 2306 fps | 95.7% |
| Hodgdon H335 | 36.4 gr | 84% | 37,260 psi | 62% | 2369 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 41,756 psi | 69% | 2349 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,931 psi | 40% | 1378 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 30,908 psi | 51% | 2274 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 35,491 psi | 59% | 2267 fps | 99.4% |
| IMR 4227 | <<locked>> | 80% | 47,471 psi | 79% | 2415 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 47,195 psi | 78% | 2523 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 82% | 40,901 psi | 68% | 2421 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 90% | 43,656 psi | 73% | 2467 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 94% | 38,624 psi | 64% | 2425 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 46,543 psi | 77% | 2372 fps | 100% |
| Norma 200 | <<locked>> | 80% | 38,014 psi | 63% | 2343 fps | 99.6% |
| Norma 201 | <<locked>> | 98% | 46,108 psi | 77% | 2507 fps | 95.2% |
| Norma 202 | <<locked>> | 90% | 35,607 psi | 59% | 2336 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,844 psi | 40% | 1411 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 47,427 psi | 79% | 2448 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 41,785 psi | 69% | 2431 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 88% | 37,376 psi | 62% | 2336 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 82% | 40,901 psi | 68% | 2421 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 94% | 38,624 psi | 64% | 2425 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 48,211 psi | 80% | 2497 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,873 psi | 71% | 2185 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 38,203 psi | 63% | 2379 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,301 psi | 57% | 2274 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 36,245 psi | 60% | 2264 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 33,127 psi | 55% | 2218 fps | 95.2% |
| Somchem S321 | <<locked>> | 92% | 44,686 psi | 74% | 2503 fps | 95.1% |
| Somchem S335 | <<locked>> | 86% | 33,243 psi | 55% | 2221 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 40,234 psi | 67% | 2326 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,489 psi | 54% | 2195 fps | 97.8% |
| Vihtavuori N133 | <<locked>> | 80% | 28,210 psi | 47% | 2103 fps | 95% |
| Vihtavuori N135 | <<locked>> | 86% | 28,181 psi | 47% | 2178 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 92% | 35,940 psi | 60% | 2323 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 96% | 47,834 psi | 79% | 2526 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 94% | 36,666 psi | 61% | 2349 fps | 95% |
| Winchester 748 | <<locked>> | 94% | 42,714 psi | 71% | 2500 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 55 powders for .307 Win. loaded with the .308 | 150gr | Swift A-Frame. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,710 fps; across all powders the maximum-charge window runs from 1,549 fps to 2,710 fps. Accurate 2015 gives the best case fill at 100 %, and 55 of the 55 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 150.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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. ADI AR 2219, Hodgdon H335, Hodgdon H322 rank at the top here: for .307 Win. with the .308 | 150gr | 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.