Load Specifications
Load data in caliber .307 Win. with .308 | 140gr | Barnes X BT bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, Shooters World AR Plus and Lovex D073.4.
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% | 52,736 psi | 88% | 2559 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 53,011 psi | 88% | 2638 fps | 99.7% |
| Accurate 2460 | <<locked>> | 96% | 52,040 psi | 86% | 2641 fps | 97.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,916 psi | 70% | 2530 fps | 98.6% |
| Accurate 2520ᴾ | <<locked>> | 100% | 51,605 psi | 86% | 2674 fps | 97% |
| Accurate LT-30 | <<locked>> | 92% | 52,910 psi | 88% | 2559 fps | 98.9% |
| Accurate LT-32 | <<locked>> | 92% | 53,447 psi | 89% | 2566 fps | 97.4% |
| ADI AR 2207 | <<locked>> | 90% | 53,055 psi | 88% | 2615 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 54,085 psi | 90% | 2700 fps | 98.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 48,602 psi | 81% | 2661 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 53,461 psi | 89% | 2664 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 51,967 psi | 86% | 2582 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 54,447 psi | 90% | 2598 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 98% | 52,069 psi | 87% | 2595 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 96% | 52,388 psi | 87% | 2677 fps | 98.7% |
| Hodgdon H335 | <<locked>> | 96% | 53,693 psi | 89% | 2697 fps | 98% |
| Hodgdon H4198 | <<locked>> | 88% | 51,895 psi | 86% | 2559 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,779 psi | 54% | 1581 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,441 psi | 77% | 2638 fps | 98.5% |
| IMR 4198 | <<locked>> | 96% | 54,201 psi | 90% | 2631 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 52,301 psi | 87% | 2536 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 52,736 psi | 88% | 2657 fps | 97% |
| Lovex D073.5 | <<locked>> | 96% | 51,895 psi | 86% | 2638 fps | 96.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 45,861 psi | 76% | 2598 fps | 95.7% |
| Lovex S053 | <<locked>> | 86% | 54,317 psi | 90% | 2533 fps | 100% |
| Norma 200 | <<locked>> | 90% | 51,387 psi | 85% | 2608 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 47,065 psi | 78% | 2592 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,967 psi | 55% | 1621 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 51,953 psi | 86% | 2566 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 51,967 psi | 86% | 2644 fps | 96.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 52,562 psi | 87% | 2638 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 90% | 52,736 psi | 88% | 2657 fps | 97% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 45,861 psi | 76% | 2598 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 51,837 psi | 86% | 2359 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 51,445 psi | 85% | 2654 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 54,143 psi | 90% | 2667 fps | 99.4% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,387 psi | 85% | 2566 fps | 97.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,307 psi | 69% | 2415 fps | 96.4% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,414 psi | 82% | 2559 fps | 98.1% |
| Vihtavuori N120 | <<locked>> | 90% | 53,055 psi | 88% | 2569 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 53,983 psi | 90% | 2612 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 50,067 psi | 83% | 2566 fps | 99.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,467 psi | 71% | 2530 fps | 98.6% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 44,643 psi | 74% | 2526 fps | 96.6% |
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% | 43,598 psi | 72% | 2415 fps | 99.3% |
| Accurate 2015 | <<locked>> | 82% | 31,633 psi | 53% | 2244 fps | 95.4% |
| Accurate 2460 | <<locked>> | 90% | 42,873 psi | 71% | 2493 fps | 95.5% |
| Accurate 2495 | <<locked>> | 90% | 31,067 psi | 52% | 2303 fps | 95.6% |
| Accurate 2520 | <<locked>> | 96% | 45,020 psi | 75% | 2569 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 37,594 psi | 62% | 2293 fps | 95.8% |
| Accurate LT-32 | <<locked>> | 86% | 45,179 psi | 75% | 2434 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 39,552 psi | 66% | 2402 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 37,304 psi | 62% | 2402 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 27,354 psi | 45% | 2198 fps | 96.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,823 psi | 56% | 2306 fps | 97.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 41,452 psi | 69% | 2408 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,592 psi | 59% | 2277 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 96% | 49,023 psi | 81% | 2549 fps | 95.1% |
| Hodgdon H322 | 33.5 gr | 86% | 38,667 psi | 64% | 2431 fps | 95.7% |
| Hodgdon H335 | <<locked>> | 88% | 41,510 psi | 69% | 2490 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 41,176 psi | 68% | 2375 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,482 psi | 41% | 1414 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 34,708 psi | 58% | 2398 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 35,259 psi | 59% | 2303 fps | 98.6% |
| IMR 4227 | <<locked>> | 80% | 46,427 psi | 77% | 2451 fps | 100% |
| Lovex D073.4 | 35.9 gr | 86% | 46,137 psi | 77% | 2552 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 94% | 48,762 psi | 81% | 2589 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 98% | 43,076 psi | 72% | 2549 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 46,122 psi | 77% | 2418 fps | 100% |
| Norma 200 | <<locked>> | 80% | 38,566 psi | 64% | 2388 fps | 99.1% |
| Norma 202 | <<locked>> | 96% | 42,003 psi | 70% | 2500 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,482 psi | 41% | 1447 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,296 psi | 77% | 2484 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 46,267 psi | 77% | 2552 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 92% | 42,496 psi | 71% | 2467 fps | 95.4% |
| Shooters World AR Plus | 35.9 gr | 86% | 46,137 psi | 77% | 2552 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 98% | 43,076 psi | 72% | 2549 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,670 psi | 71% | 2234 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 42,627 psi | 71% | 2503 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,069 psi | 57% | 2303 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 40,596 psi | 67% | 2382 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 36,883 psi | 61% | 2329 fps | 95.1% |
| Somchem S335 | <<locked>> | 90% | 37,333 psi | 62% | 2343 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 39,697 psi | 66% | 2369 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,619 psi | 54% | 2231 fps | 96.7% |
| Vihtavuori N133 | <<locked>> | 84% | 31,923 psi | 53% | 2224 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 90% | 31,908 psi | 53% | 2303 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 96% | 39,827 psi | 66% | 2438 fps | 95.3% |
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 44 powders for .307 Win. loaded with the .308 | 140gr | Barnes X BT. ADI AR 2219 delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,581 fps to 2,700 fps. Accurate 2015 gives the best case fill at 100 %, and 44 of the 44 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 140.0 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, Shooters World AR Plus, Lovex D073.4 rank at the top here: for .307 Win. with the .308 | 140gr | Barnes X BT 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.