Load Specifications
Load data in caliber .307 Win. with .308 | 150gr | Speer BT FMJ bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, SNPE Vectan SP 10 and Shooters World AR Plus.
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% | 52,083 psi | 87% | 2484 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 52,417 psi | 87% | 2566 fps | 99.9% |
| Accurate 2460 | <<locked>> | 96% | 51,213 psi | 85% | 2572 fps | 98.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,190 psi | 67% | 2444 fps | 99% |
| Accurate 2520ᴾ | <<locked>> | 100% | 51,358 psi | 85% | 2608 fps | 97.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,405 psi | 62% | 2405 fps | 96% |
| Accurate LT-30 | <<locked>> | 92% | 52,910 psi | 88% | 2497 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 92% | 53,403 psi | 89% | 2503 fps | 98.2% |
| ADI AR 2207 | <<locked>> | 90% | 52,765 psi | 88% | 2539 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 54,230 psi | 90% | 2635 fps | 99.4% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 51,677 psi | 86% | 2575 fps | 96.1% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 48,443 psi | 80% | 2589 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 53,055 psi | 88% | 2589 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 54,360 psi | 90% | 2546 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 51,314 psi | 85% | 2493 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 98% | 51,750 psi | 86% | 2533 fps | 96.8% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 48,602 psi | 81% | 2585 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 96% | 51,996 psi | 86% | 2605 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 96% | 53,737 psi | 89% | 2631 fps | 98.8% |
| Hodgdon H4198 | <<locked>> | 88% | 51,837 psi | 86% | 2497 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,460 psi | 54% | 1532 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,774 psi | 76% | 2569 fps | 99.1% |
| IMR 4198 | <<locked>> | 96% | 54,389 psi | 90% | 2562 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 51,822 psi | 86% | 2461 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 51,677 psi | 86% | 2575 fps | 96.1% |
| Lovex D073.4 | <<locked>> | 90% | 52,257 psi | 87% | 2589 fps | 97.8% |
| Lovex D073.5 | <<locked>> | 96% | 51,140 psi | 85% | 2569 fps | 97% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 44,991 psi | 75% | 2523 fps | 96.6% |
| Lovex S053 | <<locked>> | 86% | 53,505 psi | 89% | 2454 fps | 100% |
| Norma 200 | <<locked>> | 92% | 53,055 psi | 88% | 2569 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 46,731 psi | 78% | 2526 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,184 psi | 53% | 1565 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 51,721 psi | 86% | 2493 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 51,779 psi | 86% | 2579 fps | 97.6% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 51,198 psi | 85% | 2562 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 90% | 52,257 psi | 87% | 2589 fps | 97.8% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 44,991 psi | 75% | 2523 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 53,026 psi | 88% | 2549 fps | 95.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 54,041 psi | 90% | 2316 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 51,271 psi | 85% | 2589 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 54,404 psi | 90% | 2602 fps | 99.8% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 50,531 psi | 84% | 2493 fps | 98.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,451 psi | 67% | 2349 fps | 97.2% |
| Somchem S321 | <<locked>> | 98% | 52,779 psi | 88% | 2615 fps | 96.6% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,791 psi | 81% | 2490 fps | 98.7% |
| Vihtavuori N120 | <<locked>> | 90% | 52,852 psi | 88% | 2493 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 53,737 psi | 89% | 2539 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 49,588 psi | 82% | 2497 fps | 99.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,495 psi | 69% | 2451 fps | 99.1% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 44,208 psi | 73% | 2461 fps | 97.5% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 52,344 psi | 87% | 2575 fps | 96.2% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,699 psi | 71% | 2451 fps | 96.5% |
| Winchester 748ᴾ | <<locked>> | 100% | 50,038 psi | 83% | 2608 fps | 96.7% |
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% | 43,004 psi | 71% | 2349 fps | 99.6% |
| Accurate 2015 | <<locked>> | 82% | 29,776 psi | 49% | 2159 fps | 95.7% |
| Accurate 2460 | <<locked>> | 88% | 39,073 psi | 65% | 2369 fps | 95.5% |
| Accurate 2495 | <<locked>> | 90% | 28,834 psi | 48% | 2208 fps | 95.8% |
| Accurate 2520 | <<locked>> | 94% | 41,539 psi | 69% | 2454 fps | 95.7% |
| Accurate 4064 | <<locked>> | 98% | 34,983 psi | 58% | 2356 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 36,898 psi | 61% | 2231 fps | 96.5% |
| Accurate LT-32 | <<locked>> | 82% | 39,407 psi | 65% | 2277 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 38,682 psi | 64% | 2326 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,171 psi | 57% | 2283 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 98% | 48,486 psi | 81% | 2526 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 25,759 psi | 43% | 2119 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,503 psi | 54% | 2231 fps | 97.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,045 psi | 67% | 2326 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,911 psi | 58% | 2211 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 94% | 45,716 psi | 76% | 2438 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 98% | 45,484 psi | 76% | 2536 fps | 95.4% |
| Hodgdon H322 | 32.8 gr | 84% | 35,607 psi | 59% | 2316 fps | 95.8% |
| Hodgdon H335 | <<locked>> | 86% | 38,305 psi | 64% | 2375 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 40,640 psi | 68% | 2313 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,743 psi | 39% | 1362 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 31,589 psi | 52% | 2277 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 34,301 psi | 57% | 2228 fps | 99% |
| IMR 4227 | <<locked>> | 80% | 46,064 psi | 77% | 2379 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 48,486 psi | 81% | 2526 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 84% | 42,351 psi | 70% | 2431 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 92% | 44,469 psi | 74% | 2464 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 96% | 39,233 psi | 65% | 2421 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 45,121 psi | 75% | 2339 fps | 100% |
| Norma 200 | <<locked>> | 80% | 36,825 psi | 61% | 2306 fps | 99.3% |
| Norma 202 | <<locked>> | 94% | 38,653 psi | 64% | 2385 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,641 psi | 39% | 1394 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,788 psi | 76% | 2408 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 42,728 psi | 71% | 2431 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 90% | 38,218 psi | 63% | 2336 fps | 95.3% |
| Shooters World AR Plus | 35.2 gr | 84% | 42,351 psi | 70% | 2431 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 96% | 39,233 psi | 65% | 2421 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 49,676 psi | 83% | 2500 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,655 psi | 69% | 2156 fps | 100% |
| SNPE Vectan SP 10 | 35 gr | 84% | 39,160 psi | 65% | 2382 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,909 psi | 55% | 2228 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 37,159 psi | 62% | 2267 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 33,779 psi | 56% | 2218 fps | 95.1% |
| Somchem S321 | <<locked>> | 94% | 45,992 psi | 76% | 2510 fps | 95.1% |
| Somchem S335 | <<locked>> | 88% | 33,924 psi | 56% | 2224 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 38,856 psi | 65% | 2293 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,125 psi | 52% | 2152 fps | 97.2% |
| Vihtavuori N133 | <<locked>> | 82% | 28,935 psi | 48% | 2110 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 88% | 28,732 psi | 48% | 2182 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 94% | 36,709 psi | 61% | 2323 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 98% | 48,936 psi | 81% | 2526 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 96% | 37,594 psi | 62% | 2352 fps | 95% |
| Winchester 748 | <<locked>> | 96% | 43,671 psi | 73% | 2500 fps | 95.1% |
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 53 powders for .307 Win. loaded with the .308 | 150gr | Speer BT FMJ. ADI AR 2219 delivers the highest muzzle velocity at 2,635 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,635 fps. Accurate 2015 gives the best case fill at 100 %, and 53 of the 53 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:13.5 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, SNPE Vectan SP 10, Shooters World AR Plus rank at the top here: for .307 Win. with the .308 | 150gr | Speer BT FMJ 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.