Load Specifications
Load data in caliber .307 Win. with .308 | 123gr | Prvi Partizan FMJ bullet and 37 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Norma 200 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% | 52,156 psi | 87% | 2766 fps | 99.7% |
| Accurate 2015ᴾ | <<locked>> | 100% | 47,819 psi | 79% | 2779 fps | 98.7% |
| Accurate 2460ᴾ | <<locked>> | 100% | 53,737 psi | 89% | 2887 fps | 97.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 36,172 psi | 60% | 2628 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 94% | 52,779 psi | 88% | 2772 fps | 98.3% |
| Accurate LT-32 | <<locked>> | 94% | 53,301 psi | 89% | 2779 fps | 96.6% |
| ADI AR 2205 | <<locked>> | 82% | 54,012 psi | 90% | 2687 fps | 100% |
| ADI AR 2207 | <<locked>> | 92% | 51,576 psi | 86% | 2825 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 53,548 psi | 89% | 2913 fps | 98.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 44,353 psi | 74% | 2808 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 98% | 52,040 psi | 86% | 2871 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 92% | 53,722 psi | 89% | 2835 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 54,346 psi | 90% | 2808 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 98% | 51,459 psi | 85% | 2881 fps | 97.9% |
| Hodgdon H335 | <<locked>> | 98% | 52,895 psi | 88% | 2900 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 90% | 51,430 psi | 85% | 2769 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,589 psi | 52% | 1719 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 41,930 psi | 70% | 2766 fps | 96.7% |
| IMR 4198 | <<locked>> | 98% | 53,505 psi | 89% | 2848 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 51,517 psi | 86% | 2753 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 51,387 psi | 85% | 2858 fps | 95.9% |
| Lovex S053 | <<locked>> | 88% | 52,997 psi | 88% | 2749 fps | 100% |
| Norma 200 | <<locked>> | 94% | 52,417 psi | 87% | 2858 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,459 psi | 52% | 1762 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 51,140 psi | 85% | 2782 fps | 100% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 47,340 psi | 79% | 2776 fps | 95.8% |
| Shooters World AR Plus | <<locked>> | 92% | 51,387 psi | 85% | 2858 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 53,911 psi | 90% | 2608 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 54,157 psi | 90% | 2913 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 53,229 psi | 88% | 2877 fps | 98.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 47,036 psi | 78% | 2707 fps | 95.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 45,223 psi | 75% | 2703 fps | 96.5% |
| Vihtavuori N110 | <<locked>> | 82% | 52,127 psi | 87% | 2654 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 51,692 psi | 86% | 2779 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 52,953 psi | 88% | 2818 fps | 99.7% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 46,021 psi | 76% | 2717 fps | 98.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 38,014 psi | 63% | 2648 fps | 96.8% |
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% | 40,219 psi | 67% | 2559 fps | 98.1% |
| Accurate 2015 | <<locked>> | 90% | 35,143 psi | 58% | 2533 fps | 95.7% |
| Accurate 2460 | <<locked>> | 96% | 46,702 psi | 78% | 2772 fps | 95.6% |
| Accurate 2495 | <<locked>> | 98% | 33,547 psi | 56% | 2569 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 84% | 39,001 psi | 65% | 2523 fps | 95.2% |
| Accurate LT-32 | <<locked>> | 90% | 47,007 psi | 78% | 2674 fps | 95.2% |
| ADI AR 2205 | <<locked>> | 80% | 50,894 psi | 85% | 2644 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 35,752 psi | 59% | 2543 fps | 99.7% |
| ADI AR 2219 | 38.6 gr | 88% | 40,988 psi | 68% | 2687 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 86% | 28,485 psi | 47% | 2431 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 82% | 31,720 psi | 53% | 2464 fps | 95.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,260 psi | 62% | 2539 fps | 98% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 39,363 psi | 65% | 2552 fps | 95.7% |
| Hodgdon H322 | 38.2 gr | 90% | 39,784 psi | 66% | 2661 fps | 95% |
| Hodgdon H335 | <<locked>> | 94% | 46,238 psi | 77% | 2789 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 84% | 43,018 psi | 71% | 2621 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,395 psi | 39% | 1539 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 37,159 psi | 62% | 2661 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 31,981 psi | 53% | 2428 fps | 96.8% |
| IMR 4227 | <<locked>> | 80% | 43,091 psi | 72% | 2612 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 90% | 47,863 psi | 80% | 2799 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 42,279 psi | 70% | 2579 fps | 100% |
| Norma 200 | 33.2 gr | 80% | 33,562 psi | 56% | 2497 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,163 psi | 38% | 1575 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 42,714 psi | 71% | 2641 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 98% | 44,338 psi | 74% | 2720 fps | 95% |
| Shooters World AR Plus | <<locked>> | 90% | 47,863 psi | 80% | 2799 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,291 psi | 65% | 2392 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 44,034 psi | 73% | 2743 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 36,535 psi | 61% | 2566 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 44,280 psi | 74% | 2657 fps | 95.1% |
| Somchem S335 | <<locked>> | 96% | 39,972 psi | 66% | 2602 fps | 95% |
| Vihtavuori N110 | <<locked>> | 80% | 49,240 psi | 82% | 2615 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 35,955 psi | 60% | 2513 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 32,489 psi | 54% | 2428 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 90% | 34,069 psi | 57% | 2474 fps | 95% |
| Vihtavuori N135 | <<locked>> | 96% | 33,591 psi | 56% | 2546 fps | 95.2% |
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 37 powders for .307 Win. loaded with the .308 | 123gr | Prvi Partizan FMJ. ADI AR 2219 delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,719 fps to 2,913 fps. Accurate 2015 gives the best case fill at 100 %, and 37 of the 37 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 123.0 gr projectile in 0.308" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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, Norma 200, Hodgdon H322 rank at the top here: for .307 Win. with the .308 | 123gr | Prvi Partizan 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.