Load Specifications
Load data in caliber .307 Win. with .308 | 125gr | Nosler AccuBond bullet and 35 powders. The key underlying parameters are shown in the table above.
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>> | 90% | 53,519 psi | 89% | 2740 fps | 99.7% |
| Accurate 2015ᴾ | <<locked>> | 100% | 45,614 psi | 76% | 2700 fps | 98.2% |
| Accurate 2460ᴾ | <<locked>> | 100% | 50,662 psi | 84% | 2792 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 96% | 53,693 psi | 89% | 2740 fps | 98.2% |
| Accurate LT-32 | <<locked>> | 96% | 54,259 psi | 90% | 2743 fps | 96.4% |
| ADI AR 2205 | <<locked>> | 82% | 52,417 psi | 87% | 2618 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 52,634 psi | 87% | 2795 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 51,039 psi | 85% | 2825 fps | 97.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 42,032 psi | 70% | 2720 fps | 99.4% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 52,663 psi | 87% | 2835 fps | 99.7% |
| Alliant Reloder-7 | <<locked>> | 92% | 51,387 psi | 85% | 2753 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 52,025 psi | 86% | 2730 fps | 98.2% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 52,330 psi | 87% | 2844 fps | 97.8% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 53,809 psi | 89% | 2867 fps | 97.1% |
| Hodgdon H4198 | <<locked>> | 92% | 52,808 psi | 88% | 2743 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,256 psi | 52% | 1677 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 51,605 psi | 86% | 2772 fps | 99.9% |
| IMR 4227 | <<locked>> | 88% | 52,721 psi | 88% | 2723 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 52,837 psi | 88% | 2759 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 94% | 52,141 psi | 87% | 2822 fps | 95.7% |
| Lovex S053 | <<locked>> | 90% | 54,172 psi | 90% | 2717 fps | 100% |
| Norma 200 | <<locked>> | 96% | 52,997 psi | 88% | 2822 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,111 psi | 52% | 1719 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 52,576 psi | 87% | 2759 fps | 100% |
| Shooters World AR Plus | <<locked>> | 94% | 52,141 psi | 87% | 2822 fps | 95.7% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 52,837 psi | 88% | 2759 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 82% | 53,606 psi | 89% | 2730 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 52,025 psi | 86% | 2539 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 51,517 psi | 86% | 2828 fps | 96.6% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 54,056 psi | 90% | 2841 fps | 98.8% |
| Vihtavuori N110 | <<locked>> | 84% | 53,548 psi | 89% | 2631 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 52,707 psi | 88% | 2753 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 50,676 psi | 84% | 2740 fps | 99.4% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,932 psi | 73% | 2635 fps | 97.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 36,114 psi | 60% | 2566 fps | 95.9% |
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 38,508 psi | 64% | 2484 fps | 97.6% |
| Accurate 2015 | <<locked>> | 92% | 35,433 psi | 59% | 2500 fps | 95.5% |
| Accurate 2460 | <<locked>> | 98% | 47,427 psi | 79% | 2740 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 86% | 39,624 psi | 66% | 2493 fps | 95.1% |
| Accurate LT-32 | <<locked>> | 92% | 48,269 psi | 80% | 2648 fps | 95.1% |
| ADI AR 2205 | <<locked>> | 80% | 49,240 psi | 82% | 2572 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 34,040 psi | 57% | 2464 fps | 99.4% |
| ADI AR 2219 | <<locked>> | 90% | 41,829 psi | 69% | 2657 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 88% | 29,109 psi | 48% | 2408 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 84% | 32,126 psi | 53% | 2438 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,708 psi | 59% | 2464 fps | 97.4% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 40,176 psi | 67% | 2526 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 94% | 43,149 psi | 72% | 2684 fps | 95.8% |
| Hodgdon H335 | <<locked>> | 96% | 47,036 psi | 78% | 2756 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 86% | 43,787 psi | 73% | 2589 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,945 psi | 38% | 1496 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 30,734 psi | 51% | 2352 fps | 96.1% |
| IMR 4227 | <<locked>> | 80% | 41,553 psi | 69% | 2539 fps | 99.7% |
| Lovex D060 | <<locked>> | 80% | 49,617 psi | 82% | 2707 fps | 99.7% |
| Lovex D073.4 | <<locked>> | 92% | 48,791 psi | 81% | 2769 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 40,727 psi | 68% | 2507 fps | 100% |
| Norma 200 | <<locked>> | 80% | 32,010 psi | 53% | 2421 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,727 psi | 38% | 1532 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,799 psi | 68% | 2562 fps | 99.6% |
| Shooters World AR Plus | <<locked>> | 92% | 48,791 psi | 81% | 2769 fps | 95% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 49,617 psi | 82% | 2707 fps | 99.7% |
| Shooters World SOCOM | <<locked>> | 80% | 50,372 psi | 84% | 2680 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 38,072 psi | 63% | 2333 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 45,063 psi | 75% | 2717 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 37,246 psi | 62% | 2539 fps | 95.1% |
| Vihtavuori N110 | <<locked>> | 80% | 47,616 psi | 79% | 2549 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 34,243 psi | 57% | 2438 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 31,212 psi | 52% | 2359 fps | 95% |
| Vihtavuori N133 | <<locked>> | 94% | 36,608 psi | 61% | 2490 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 98% | 33,852 psi | 56% | 2513 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 35 powders for .307 Win. loaded with the .308 | 125gr | Nosler AccuBond. Hodgdon H335 delivers the highest muzzle velocity at 2,867 fps; across all powders the maximum-charge window runs from 1,677 fps to 2,867 fps. Accurate 2015 gives the best case fill at 100 %, and 35 of the 35 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Alliant AR-Comp 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.