Load Specifications
Load data in caliber .307 Win. with .308 | 145gr | Prvi Partizan FMJ BT bullet and 47 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 86% | 51,169 psi | 85% | 2513 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 50,734 psi | 84% | 2582 fps | 99.7% |
| Accurate 2460 | <<locked>> | 98% | 52,924 psi | 88% | 2635 fps | 98.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 38,580 psi | 64% | 2454 fps | 98.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 49,487 psi | 82% | 2621 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 92% | 51,605 psi | 86% | 2516 fps | 99% |
| Accurate LT-32 | <<locked>> | 92% | 52,112 psi | 87% | 2523 fps | 97.6% |
| ADI AR 2207 | <<locked>> | 92% | 54,288 psi | 90% | 2602 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 52,562 psi | 87% | 2651 fps | 99% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,833 psi | 78% | 2608 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 51,503 psi | 86% | 2612 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 52,939 psi | 88% | 2569 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 53,040 psi | 88% | 2552 fps | 99.3% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2598 fps | 96.7% |
| Hodgdon H322 | <<locked>> | 98% | 54,317 psi | 90% | 2677 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 96% | 51,982 psi | 86% | 2648 fps | 98.2% |
| Hodgdon H4198 | <<locked>> | 90% | 53,867 psi | 89% | 2566 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,227 psi | 54% | 1555 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 44,643 psi | 74% | 2589 fps | 98.6% |
| IMR 4198 | <<locked>> | 96% | 52,939 psi | 88% | 2585 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 54,099 psi | 90% | 2533 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 54,099 psi | 90% | 2654 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 98% | 53,316 psi | 89% | 2638 fps | 97% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 43,613 psi | 72% | 2539 fps | 95.8% |
| Lovex S053 | <<locked>> | 86% | 52,243 psi | 87% | 2480 fps | 100% |
| Norma 200 | <<locked>> | 92% | 51,924 psi | 86% | 2598 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 45,150 psi | 75% | 2539 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,894 psi | 53% | 1588 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 53,693 psi | 89% | 2562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 53,606 psi | 89% | 2644 fps | 97.5% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 49,632 psi | 82% | 2575 fps | 97.6% |
| Shooters World AR Plus | <<locked>> | 92% | 54,099 psi | 90% | 2654 fps | 97.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 43,613 psi | 72% | 2539 fps | 95.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 53,316 psi | 89% | 2352 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 52,997 psi | 88% | 2654 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 52,736 psi | 88% | 2621 fps | 99.6% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 49,501 psi | 82% | 2516 fps | 97.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 39,581 psi | 66% | 2365 fps | 96.5% |
| Somchem S321 | <<locked>> | 98% | 51,082 psi | 85% | 2625 fps | 95.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 47,384 psi | 79% | 2507 fps | 98.1% |
| Vihtavuori N110 | <<locked>> | 82% | 54,302 psi | 90% | 2425 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 54,360 psi | 90% | 2559 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 52,214 psi | 87% | 2562 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 48,501 psi | 81% | 2520 fps | 99.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,379 psi | 67% | 2470 fps | 98.6% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,134 psi | 72% | 2480 fps | 96.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 48,472 psi | 81% | 2618 fps | 95.8% |
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% | 41,901 psi | 70% | 2365 fps | 99.3% |
| Accurate 2015 | <<locked>> | 84% | 30,806 psi | 51% | 2218 fps | 95.7% |
| Accurate 2460 | <<locked>> | 90% | 40,306 psi | 67% | 2431 fps | 95.4% |
| Accurate 2495 | <<locked>> | 92% | 29,602 psi | 49% | 2264 fps | 95.7% |
| Accurate 2520 | <<locked>> | 96% | 43,149 psi | 72% | 2520 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 35,984 psi | 60% | 2247 fps | 95.8% |
| Accurate LT-32 | <<locked>> | 84% | 41,046 psi | 68% | 2339 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 37,579 psi | 62% | 2346 fps | 100% |
| ADI AR 2219 | 33.1 gr | 82% | 35,404 psi | 59% | 2346 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 24,976 psi | 41% | 2123 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,517 psi | 52% | 2244 fps | 97.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,914 psi | 65% | 2346 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,910 psi | 56% | 2224 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 96% | 47,311 psi | 79% | 2500 fps | 95.3% |
| Hodgdon H322 | 33.6 gr | 86% | 36,912 psi | 61% | 2379 fps | 95.7% |
| Hodgdon H335 | 36.7 gr | 88% | 39,595 psi | 66% | 2434 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 39,668 psi | 66% | 2329 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,554 psi | 39% | 1385 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 32,663 psi | 54% | 2339 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 33,417 psi | 56% | 2247 fps | 98.5% |
| IMR 4227 | <<locked>> | 80% | 45,005 psi | 75% | 2405 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 43,787 psi | 73% | 2493 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 94% | 46,296 psi | 77% | 2533 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 98% | 40,785 psi | 68% | 2490 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 44,034 psi | 73% | 2365 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,665 psi | 59% | 2323 fps | 98.9% |
| Norma 202 | <<locked>> | 96% | 39,972 psi | 66% | 2448 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,409 psi | 39% | 1417 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,628 psi | 74% | 2434 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 44,570 psi | 74% | 2500 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 92% | 39,450 psi | 66% | 2398 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 86% | 43,787 psi | 73% | 2493 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 98% | 40,785 psi | 68% | 2490 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,089 psi | 68% | 2188 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 40,756 psi | 68% | 2451 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,213 psi | 54% | 2247 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 38,580 psi | 64% | 2329 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 35,041 psi | 58% | 2277 fps | 95% |
| Somchem S321 | <<locked>> | 96% | 47,863 psi | 80% | 2575 fps | 95.1% |
| Somchem S335 | <<locked>> | 90% | 35,114 psi | 58% | 2287 fps | 95% |
| Vihtavuori N110 | <<locked>> | 80% | 51,576 psi | 86% | 2392 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 37,768 psi | 63% | 2316 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,516 psi | 51% | 2172 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 86% | 31,749 psi | 53% | 2211 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 90% | 29,704 psi | 49% | 2241 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 96% | 37,913 psi | 63% | 2382 fps | 95.3% |
| Winchester 748 | <<locked>> | 98% | 45,455 psi | 76% | 2566 fps | 95% |
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 72 powders for .307 Win. loaded with the .308 | 145gr | Prvi Partizan FMJ BT. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,726 fps. Accurate 2015 gives the best case fill at 100 %, and 72 of the 72 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 145.0 gr projectile in 0.308" calls for a 1:14.0 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. ADI AR 2219, Hodgdon H335, Hodgdon H322 rank at the top here: for .307 Win. with the .308 | 145gr | Prvi Partizan FMJ BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, ADI AR 2206H burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.