Load Specifications
Load data in caliber .307 Win. with .308 | 150gr | Speer TBBC bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, ADI AR 2219 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>> | 86% | 52,997 psi | 88% | 2500 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 52,866 psi | 88% | 2575 fps | 99.9% |
| Accurate 2460 | <<locked>> | 96% | 51,634 psi | 86% | 2582 fps | 98.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,017 psi | 68% | 2461 fps | 99.1% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,170 psi | 87% | 2625 fps | 98.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,189 psi | 63% | 2425 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 92% | 53,374 psi | 89% | 2507 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 92% | 53,882 psi | 90% | 2516 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 90% | 53,026 psi | 88% | 2543 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 51,213 psi | 85% | 2595 fps | 99.2% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 52,083 psi | 87% | 2585 fps | 96.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 48,965 psi | 81% | 2602 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 52,330 psi | 87% | 2674 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 96% | 53,679 psi | 89% | 2598 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 51,547 psi | 86% | 2513 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 51,677 psi | 86% | 2500 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 98% | 52,156 psi | 87% | 2543 fps | 96.9% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,356 psi | 82% | 2602 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 96% | 52,968 psi | 88% | 2621 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 96% | 54,128 psi | 90% | 2641 fps | 98.9% |
| Hodgdon H4198 | <<locked>> | 88% | 52,388 psi | 87% | 2510 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,343 psi | 54% | 1535 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,586 psi | 77% | 2585 fps | 99.2% |
| IMR 4198 | <<locked>> | 94% | 51,982 psi | 86% | 2536 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 52,533 psi | 87% | 2474 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 52,083 psi | 87% | 2585 fps | 96.2% |
| Lovex D073.4 | <<locked>> | 90% | 52,692 psi | 88% | 2602 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 96% | 51,924 psi | 86% | 2582 fps | 97.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 45,745 psi | 76% | 2539 fps | 96.8% |
| Lovex S053 | <<locked>> | 86% | 54,201 psi | 90% | 2464 fps | 100% |
| Norma 200 | <<locked>> | 92% | 54,056 psi | 90% | 2585 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 47,500 psi | 79% | 2543 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,416 psi | 54% | 1572 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 52,344 psi | 87% | 2507 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 52,663 psi | 87% | 2595 fps | 97.8% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 51,619 psi | 86% | 2572 fps | 98.4% |
| Shooters World AR Plus | <<locked>> | 90% | 52,692 psi | 88% | 2602 fps | 97.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 45,745 psi | 76% | 2539 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 53,853 psi | 89% | 2566 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 51,822 psi | 86% | 2293 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 51,750 psi | 86% | 2598 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 51,430 psi | 85% | 2566 fps | 99.7% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,387 psi | 85% | 2510 fps | 98.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,147 psi | 68% | 2365 fps | 97.4% |
| Somchem S321 | <<locked>> | 98% | 53,476 psi | 89% | 2628 fps | 96.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,545 psi | 82% | 2507 fps | 98.8% |
| Vihtavuori N120 | <<locked>> | 90% | 53,026 psi | 88% | 2500 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 54,215 psi | 90% | 2552 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 50,430 psi | 84% | 2513 fps | 99.8% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,337 psi | 70% | 2470 fps | 99.3% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 44,904 psi | 75% | 2477 fps | 97.7% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 52,750 psi | 88% | 2585 fps | 96.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,337 psi | 72% | 2464 fps | 96.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 50,705 psi | 84% | 2621 fps | 96.9% |
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% | 43,511 psi | 72% | 2359 fps | 99.7% |
| Accurate 2015 | <<locked>> | 80% | 28,297 psi | 47% | 2123 fps | 95.1% |
| Accurate 2460 | <<locked>> | 88% | 39,508 psi | 66% | 2382 fps | 95.7% |
| Accurate 2495 | <<locked>> | 88% | 27,354 psi | 45% | 2172 fps | 95.2% |
| Accurate 2520 | <<locked>> | 92% | 39,233 psi | 65% | 2415 fps | 95.1% |
| Accurate 4064 | <<locked>> | 98% | 35,694 psi | 59% | 2375 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 37,101 psi | 62% | 2238 fps | 96.7% |
| Accurate LT-32 | <<locked>> | 82% | 39,929 psi | 66% | 2290 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 39,001 psi | 65% | 2333 fps | 100% |
| ADI AR 2219 | 32.6 gr | 80% | 34,330 psi | 57% | 2290 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 98% | 48,921 psi | 81% | 2536 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 26,150 psi | 43% | 2133 fps | 96.8% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 48,950 psi | 81% | 2621 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,764 psi | 54% | 2241 fps | 98% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,596 psi | 67% | 2339 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,273 psi | 59% | 2224 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 92% | 43,743 psi | 73% | 2408 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 98% | 45,847 psi | 76% | 2546 fps | 95.6% |
| Hodgdon H322 | 32.4 gr | 82% | 33,794 psi | 56% | 2280 fps | 95.2% |
| Hodgdon H335 | <<locked>> | 86% | 38,740 psi | 64% | 2385 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 40,872 psi | 68% | 2320 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,033 psi | 40% | 1371 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 31,966 psi | 53% | 2290 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 34,548 psi | 57% | 2238 fps | 99.1% |
| IMR 4227 | <<locked>> | 80% | 46,398 psi | 77% | 2388 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 48,921 psi | 81% | 2536 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 82% | 39,769 psi | 66% | 2388 fps | 95% |
| Lovex D073.5 | <<locked>> | 90% | 42,380 psi | 70% | 2434 fps | 95% |
| Lovex D073.6 | <<locked>> | 96% | 40,001 psi | 66% | 2441 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 45,411 psi | 75% | 2346 fps | 100% |
| Norma 200 | <<locked>> | 80% | 37,072 psi | 62% | 2316 fps | 99.4% |
| Norma 202 | <<locked>> | 92% | 36,985 psi | 61% | 2352 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,917 psi | 40% | 1404 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,441 psi | 77% | 2421 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 40,814 psi | 68% | 2402 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 90% | 38,638 psi | 64% | 2349 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 82% | 39,769 psi | 66% | 2388 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 96% | 40,001 psi | 66% | 2441 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 50,067 psi | 83% | 2513 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,003 psi | 70% | 2165 fps | 100% |
| SNPE Vectan SP 10 | 34.6 gr | 82% | 37,144 psi | 62% | 2346 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,431 psi | 56% | 2244 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 37,637 psi | 63% | 2280 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 34,156 psi | 57% | 2228 fps | 95.3% |
| Somchem S321 | <<locked>> | 94% | 46,717 psi | 78% | 2526 fps | 95.4% |
| Somchem S335 | <<locked>> | 88% | 34,360 psi | 57% | 2238 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 39,175 psi | 65% | 2300 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,633 psi | 53% | 2165 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 82% | 29,109 psi | 48% | 2116 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 88% | 29,109 psi | 48% | 2195 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 94% | 37,072 psi | 62% | 2336 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 98% | 49,356 psi | 82% | 2536 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 96% | 38,247 psi | 64% | 2372 fps | 95.3% |
| Winchester 748 | <<locked>> | 96% | 44,382 psi | 74% | 2516 fps | 95.4% |
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 54 powders for .307 Win. loaded with the .308 | 150gr | Speer TBBC. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,674 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,674 fps. Accurate 2015 gives the best case fill at 100 %, and 54 of the 54 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 1:14.5 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. Hodgdon H322, ADI AR 2219, SNPE Vectan SP 10 rank at the top here: for .307 Win. with the .308 | 150gr | Speer TBBC 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.