Load Specifications
Load data in caliber .307 Win. with .308 | 150gr | Speer RN bullet and 62 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 Somchem S321.
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% | 53,069 psi | 88% | 2539 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 51,082 psi | 85% | 2585 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 53,388 psi | 89% | 2644 fps | 99% |
| Accurate 2495ᴾ | <<locked>> | 100% | 45,992 psi | 76% | 2569 fps | 99.9% |
| Accurate 2520 | <<locked>> | 98% | 53,983 psi | 90% | 2687 fps | 98.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 42,699 psi | 71% | 2536 fps | 98% |
| Accurate LT-30 | <<locked>> | 90% | 53,925 psi | 90% | 2556 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 90% | 54,418 psi | 90% | 2569 fps | 98.9% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 53,751 psi | 89% | 2677 fps | 96% |
| ADI AR 2207 | <<locked>> | 88% | 54,244 psi | 90% | 2592 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 52,547 psi | 87% | 2654 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 98% | 53,447 psi | 89% | 2648 fps | 97.3% |
| Alliant AR-Comp | <<locked>> | 98% | 50,763 psi | 84% | 2657 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 51,909 psi | 86% | 2612 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 52,431 psi | 87% | 2562 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 52,518 psi | 87% | 2552 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 53,258 psi | 88% | 2602 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 98% | 51,256 psi | 85% | 2667 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 94% | 54,186 psi | 90% | 2677 fps | 99.7% |
| Hodgdon H335 | <<locked>> | 92% | 51,967 psi | 86% | 2648 fps | 99% |
| Hodgdon H4198 | <<locked>> | 86% | 52,982 psi | 88% | 2559 fps | 99.5% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 54,012 psi | 90% | 2690 fps | 96.7% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 48,733 psi | 81% | 2651 fps | 95.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,924 psi | 55% | 1578 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 52,475 psi | 87% | 2644 fps | 96.2% |
| IMR 3031ᴾ | <<locked>> | 100% | 51,401 psi | 85% | 2697 fps | 99.9% |
| IMR 4198 | <<locked>> | 92% | 52,939 psi | 88% | 2582 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 52,707 psi | 88% | 2513 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 53,447 psi | 89% | 2648 fps | 97.3% |
| Lovex D073.4 | <<locked>> | 88% | 54,056 psi | 90% | 2661 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 94% | 53,388 psi | 89% | 2644 fps | 98.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 51,314 psi | 85% | 2661 fps | 98.5% |
| Lovex S053 | <<locked>> | 82% | 51,793 psi | 86% | 2467 fps | 100% |
| Lovex S062ᴾ | <<locked>> | 100% | 46,383 psi | 77% | 2552 fps | 95.9% |
| Norma 200 | <<locked>> | 88% | 52,098 psi | 87% | 2592 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 52,156 psi | 87% | 2631 fps | 97.1% |
| Norma 202ᴾ | <<locked>> | 100% | 52,330 psi | 87% | 2654 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,982 psi | 55% | 1614 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 53,084 psi | 88% | 2552 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 53,925 psi | 90% | 2654 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 98% | 53,403 psi | 89% | 2638 fps | 99.1% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 49,168 psi | 82% | 2575 fps | 96.4% |
| Shooters World AR Plus | <<locked>> | 88% | 54,056 psi | 90% | 2661 fps | 98.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 51,314 psi | 85% | 2661 fps | 98.5% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 46,383 psi | 77% | 2552 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 51,155 psi | 85% | 2572 fps | 96.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 52,417 psi | 87% | 2333 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 53,098 psi | 88% | 2657 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 52,997 psi | 88% | 2625 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 52,388 psi | 87% | 2566 fps | 99% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,831 psi | 74% | 2464 fps | 98.7% |
| Somchem S321 | <<locked>> | 94% | 51,416 psi | 85% | 2638 fps | 97.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 53,795 psi | 89% | 2605 fps | 99.6% |
| Vihtavuori N120 | <<locked>> | 88% | 54,157 psi | 90% | 2546 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 52,402 psi | 87% | 2562 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 51,634 psi | 86% | 2566 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 46,847 psi | 78% | 2572 fps | 99.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 49,458 psi | 82% | 2585 fps | 99% |
| Vihtavuori N530 | <<locked>> | 98% | 54,462 psi | 90% | 2654 fps | 97.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 47,732 psi | 79% | 2572 fps | 98.3% |
| Winchester 748 | <<locked>> | 98% | 52,214 psi | 87% | 2690 fps | 97.9% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 51,213 psi | 85% | 2651 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% | 46,920 psi | 78% | 2451 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,314 psi | 52% | 2224 fps | 97% |
| Accurate 2460 | <<locked>> | 82% | 35,708 psi | 59% | 2339 fps | 95.2% |
| Accurate 2495 | <<locked>> | 84% | 27,079 psi | 45% | 2185 fps | 95.7% |
| Accurate 2520 | <<locked>> | 88% | 38,319 psi | 64% | 2428 fps | 95.6% |
| Accurate 4064 | <<locked>> | 92% | 33,243 psi | 55% | 2346 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 40,016 psi | 66% | 2333 fps | 98% |
| Accurate LT-32 | <<locked>> | 80% | 40,393 psi | 67% | 2339 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 98% | 50,372 psi | 84% | 2625 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 42,496 psi | 71% | 2421 fps | 100% |
| ADI AR 2219 | 35.6 gr | 80% | 37,652 psi | 63% | 2398 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 92% | 44,367 psi | 74% | 2500 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 28,471 psi | 47% | 2231 fps | 98.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,853 psi | 60% | 2336 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 43,700 psi | 73% | 2428 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,247 psi | 64% | 2320 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 41,930 psi | 70% | 2415 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 92% | 41,597 psi | 69% | 2507 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 34,374 psi | 57% | 2326 fps | 96.2% |
| Hodgdon H335 | 36.8 gr | 80% | 34,693 psi | 58% | 2336 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 44,048 psi | 73% | 2418 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 96% | 47,398 psi | 79% | 2585 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 45,687 psi | 76% | 2595 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,308 psi | 40% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 49,414 psi | 82% | 2598 fps | 95.5% |
| IMR 3031 | <<locked>> | 84% | 31,067 psi | 52% | 2303 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 37,376 psi | 62% | 2329 fps | 99.8% |
| IMR 4227 | <<locked>> | 80% | 49,632 psi | 82% | 2470 fps | 100% |
| IMR 8208 XBR | <<locked>> | 92% | 44,367 psi | 74% | 2500 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 80% | 40,785 psi | 68% | 2441 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 86% | 40,538 psi | 67% | 2434 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 92% | 38,856 psi | 65% | 2451 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 48,762 psi | 81% | 2428 fps | 100% |
| Lovex S062 | <<locked>> | 98% | 43,729 psi | 73% | 2507 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 40,553 psi | 67% | 2411 fps | 99.9% |
| Norma 201 | <<locked>> | 94% | 43,381 psi | 72% | 2484 fps | 95% |
| Norma 202 | <<locked>> | 88% | 35,810 psi | 59% | 2362 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,221 psi | 40% | 1437 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 49,719 psi | 83% | 2503 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 39,073 psi | 65% | 2402 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 84% | 35,418 psi | 59% | 2313 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 96% | 43,729 psi | 73% | 2484 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 40,785 psi | 68% | 2441 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 92% | 38,856 psi | 65% | 2451 fps | 95.7% |
| Shooters World Precision | <<locked>> | 98% | 43,729 psi | 73% | 2507 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 47,863 psi | 80% | 2520 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,889 psi | 75% | 2234 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,072 psi | 63% | 2398 fps | 96.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,419 psi | 61% | 2343 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 36,201 psi | 60% | 2287 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 33,141 psi | 55% | 2241 fps | 95.8% |
| Somchem S321 | 41.7 gr | 90% | 44,773 psi | 74% | 2530 fps | 95.7% |
| Somchem S335 | <<locked>> | 84% | 33,286 psi | 55% | 2247 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 42,612 psi | 71% | 2385 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,389 psi | 57% | 2257 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 80% | 29,892 psi | 50% | 2165 fps | 96.3% |
| Vihtavuori N135 | <<locked>> | 82% | 26,600 psi | 44% | 2156 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 88% | 33,910 psi | 56% | 2300 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 92% | 44,759 psi | 74% | 2503 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 92% | 36,985 psi | 61% | 2379 fps | 95.7% |
| Winchester 748 | <<locked>> | 90% | 40,147 psi | 67% | 2480 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 98% | 47,906 psi | 80% | 2598 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 62 powders for .307 Win. loaded with the .308 | 150gr | Speer RN. IMR 3031 delivers the highest muzzle velocity at 2,697 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,697 fps. Accurate 2495 gives the best case fill at 100 %, and 62 of the 62 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. 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. ADI AR 2219, Hodgdon H335, Somchem S321 rank at the top here: for .307 Win. with the .308 | 150gr | Speer RN 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.