Load Specifications
Load data in caliber .307 Win. with .310 | 123gr | Hornady InterLock bullet and 40 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 Hodgdon H322.
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>> | 88% | 54,331 psi | 90% | 2818 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 50,459 psi | 84% | 2841 fps | 99.2% |
| Accurate 2460 | <<locked>> | 98% | 52,779 psi | 88% | 2894 fps | 97.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 38,305 psi | 64% | 2687 fps | 97.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 49,269 psi | 82% | 2871 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 92% | 51,155 psi | 85% | 2769 fps | 98.3% |
| Accurate LT-32 | <<locked>> | 92% | 51,663 psi | 86% | 2776 fps | 96.6% |
| ADI AR 2207 | <<locked>> | 92% | 53,925 psi | 90% | 2874 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 52,431 psi | 87% | 2917 fps | 98.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,760 psi | 78% | 2867 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 54,462 psi | 90% | 2923 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 90% | 52,750 psi | 88% | 2838 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 52,939 psi | 88% | 2808 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 98% | 53,983 psi | 90% | 2943 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 96% | 51,619 psi | 86% | 2900 fps | 97.3% |
| Hodgdon H4198 | <<locked>> | 90% | 53,432 psi | 89% | 2825 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,865 psi | 53% | 1742 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 44,164 psi | 73% | 2835 fps | 97.6% |
| IMR 4198 | <<locked>> | 96% | 52,562 psi | 87% | 2854 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 53,577 psi | 89% | 2802 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 53,983 psi | 90% | 2920 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 98% | 53,127 psi | 88% | 2890 fps | 95.9% |
| Lovex S053 | <<locked>> | 86% | 52,083 psi | 87% | 2753 fps | 100% |
| Norma 200 | <<locked>> | 92% | 51,532 psi | 86% | 2861 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 45,121 psi | 75% | 2789 fps | 95.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,734 psi | 53% | 1781 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 53,403 psi | 89% | 2835 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 53,722 psi | 89% | 2907 fps | 96.6% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 49,443 psi | 82% | 2831 fps | 96.7% |
| Shooters World AR Plus | <<locked>> | 92% | 53,983 psi | 90% | 2920 fps | 96.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 52,663 psi | 87% | 2608 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 52,953 psi | 88% | 2917 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 52,141 psi | 87% | 2881 fps | 99% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 49,095 psi | 82% | 2762 fps | 96.6% |
| Somchem S335ᴾ | <<locked>> | 100% | 47,137 psi | 78% | 2753 fps | 97.3% |
| Vihtavuori N110 | <<locked>> | 82% | 53,925 psi | 90% | 2697 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 53,998 psi | 90% | 2828 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 52,098 psi | 87% | 2825 fps | 99.8% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 48,037 psi | 80% | 2769 fps | 98.8% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,914 psi | 66% | 2707 fps | 97.6% |
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% | 41,742 psi | 69% | 2608 fps | 98.7% |
| Accurate 2015 | <<locked>> | 86% | 32,372 psi | 54% | 2480 fps | 95% |
| Accurate 2460 | <<locked>> | 94% | 45,919 psi | 76% | 2776 fps | 95.8% |
| Accurate 2495 | <<locked>> | 96% | 33,518 psi | 56% | 2579 fps | 95.9% |
| Accurate 2520 | <<locked>> | 98% | 45,963 psi | 76% | 2815 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 82% | 37,956 psi | 63% | 2520 fps | 95.3% |
| Accurate LT-32 | <<locked>> | 88% | 45,847 psi | 76% | 2674 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 37,144 psi | 62% | 2585 fps | 99.9% |
| ADI AR 2219 | 39.3 gr | 86% | 39,958 psi | 66% | 2684 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 84% | 28,108 psi | 47% | 2434 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,009 psi | 52% | 2457 fps | 95.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,725 psi | 64% | 2585 fps | 98.6% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 36,100 psi | 60% | 2500 fps | 95% |
| Hodgdon H322 | 38.9 gr | 88% | 38,783 psi | 64% | 2657 fps | 95.1% |
| Hodgdon H335 | 42.6 gr | 90% | 42,250 psi | 70% | 2730 fps | 95% |
| Hodgdon H4198 | <<locked>> | 82% | 41,887 psi | 70% | 2618 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,395 psi | 39% | 1555 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 36,463 psi | 61% | 2664 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 33,185 psi | 55% | 2474 fps | 97.5% |
| IMR 4227 | <<locked>> | 80% | 44,498 psi | 74% | 2654 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 46,760 psi | 78% | 2799 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 96% | 49,327 psi | 82% | 2831 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 43,758 psi | 73% | 2618 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,302 psi | 59% | 2552 fps | 98% |
| Norma 202 | <<locked>> | 98% | 42,250 psi | 70% | 2730 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,424 psi | 39% | 1594 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,324 psi | 74% | 2687 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 47,181 psi | 78% | 2799 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 96% | 43,903 psi | 73% | 2730 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 88% | 46,760 psi | 78% | 2799 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,538 psi | 67% | 2428 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 43,134 psi | 72% | 2740 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 35,984 psi | 60% | 2569 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 43,265 psi | 72% | 2661 fps | 95.2% |
| Somchem S335 | <<locked>> | 94% | 39,262 psi | 65% | 2605 fps | 95.2% |
| Vihtavuori N110 | <<locked>> | 80% | 51,155 psi | 85% | 2657 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 37,333 psi | 62% | 2552 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,052 psi | 50% | 2382 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 88% | 33,460 psi | 56% | 2477 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 94% | 33,170 psi | 55% | 2552 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 40 powders for .307 Win. loaded with the .310 | 123gr | Hornady InterLock. Hodgdon H322 delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,742 fps to 2,943 fps. Accurate 2015 gives the best case fill at 100 %, and 40 of the 40 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. 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. ADI AR 2219, Hodgdon H335, Hodgdon H322 rank at the top here: for .307 Win. with the .310 | 123gr | Hornady InterLock 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.