Load Specifications
Load data in caliber .307 Win. with .308 | 146gr | Norma FMJ Spitz bullet and 51 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% | 52,069 psi | 87% | 2526 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 52,141 psi | 87% | 2605 fps | 99.8% |
| Accurate 2460 | <<locked>> | 96% | 50,792 psi | 84% | 2605 fps | 98% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,871 psi | 66% | 2477 fps | 98.8% |
| Accurate 2520ᴾ | <<locked>> | 100% | 51,213 psi | 85% | 2648 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 92% | 52,895 psi | 88% | 2536 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 92% | 53,359 psi | 89% | 2546 fps | 98% |
| ADI AR 2207 | <<locked>> | 90% | 52,446 psi | 87% | 2579 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 53,911 psi | 90% | 2674 fps | 99.3% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 51,300 psi | 85% | 2608 fps | 95.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 48,138 psi | 80% | 2628 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 52,982 psi | 88% | 2631 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 54,418 psi | 90% | 2589 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 51,010 psi | 85% | 2526 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 98% | 51,532 psi | 86% | 2569 fps | 96.5% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 48,428 psi | 80% | 2625 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 96% | 52,156 psi | 87% | 2648 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 96% | 53,272 psi | 89% | 2664 fps | 98.6% |
| Hodgdon H4198 | <<locked>> | 88% | 51,547 psi | 86% | 2533 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,242 psi | 54% | 1558 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,890 psi | 76% | 2612 fps | 99% |
| IMR 4198 | <<locked>> | 96% | 54,433 psi | 90% | 2605 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 51,779 psi | 86% | 2503 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 51,300 psi | 85% | 2608 fps | 95.8% |
| Lovex D073.4 | <<locked>> | 90% | 51,938 psi | 86% | 2628 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 96% | 51,082 psi | 85% | 2608 fps | 96.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 44,860 psi | 75% | 2562 fps | 96.4% |
| Lovex S053 | <<locked>> | 86% | 53,461 psi | 89% | 2497 fps | 100% |
| Norma 200 | <<locked>> | 92% | 53,026 psi | 88% | 2612 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 46,775 psi | 78% | 2569 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,271 psi | 54% | 1598 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 51,459 psi | 85% | 2533 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 51,851 psi | 86% | 2621 fps | 97.4% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 50,923 psi | 85% | 2598 fps | 98.1% |
| Shooters World AR Plus | <<locked>> | 90% | 51,938 psi | 86% | 2628 fps | 97.6% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 44,860 psi | 75% | 2562 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 54,099 psi | 90% | 2359 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 50,923 psi | 85% | 2625 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 53,824 psi | 89% | 2638 fps | 99.7% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 50,401 psi | 84% | 2530 fps | 98% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,263 psi | 67% | 2382 fps | 96.9% |
| Somchem S321 | <<locked>> | 98% | 52,649 psi | 87% | 2651 fps | 96.4% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,515 psi | 81% | 2526 fps | 98.5% |
| Vihtavuori N120 | <<locked>> | 90% | 52,504 psi | 87% | 2533 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 53,577 psi | 89% | 2579 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 49,356 psi | 82% | 2533 fps | 99.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,263 psi | 69% | 2487 fps | 98.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 44,237 psi | 73% | 2500 fps | 97.3% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 51,953 psi | 86% | 2612 fps | 95.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,641 psi | 71% | 2487 fps | 96.3% |
| Winchester 748ᴾ | <<locked>> | 100% | 49,951 psi | 83% | 2648 fps | 96.5% |
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% | 42,757 psi | 71% | 2382 fps | 99.5% |
| Accurate 2015 | <<locked>> | 82% | 29,704 psi | 49% | 2192 fps | 95.4% |
| Accurate 2460 | <<locked>> | 88% | 38,943 psi | 65% | 2405 fps | 95.2% |
| Accurate 2495 | <<locked>> | 90% | 28,558 psi | 47% | 2234 fps | 95.4% |
| Accurate 2520 | <<locked>> | 94% | 41,553 psi | 69% | 2493 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 36,796 psi | 61% | 2264 fps | 96.3% |
| Accurate LT-32 | <<locked>> | 84% | 41,858 psi | 70% | 2359 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 38,682 psi | 64% | 2365 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 36,274 psi | 60% | 2365 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 98% | 48,167 psi | 80% | 2559 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 25,715 psi | 43% | 2149 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,198 psi | 53% | 2260 fps | 97.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,929 psi | 66% | 2365 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,911 psi | 58% | 2251 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 94% | 45,600 psi | 76% | 2474 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 98% | 45,397 psi | 75% | 2572 fps | 95.1% |
| Hodgdon H322 | 33.4 gr | 84% | 35,404 psi | 59% | 2346 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 86% | 38,203 psi | 63% | 2411 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 40,611 psi | 67% | 2349 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,699 psi | 39% | 1388 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 33,446 psi | 56% | 2359 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 34,345 psi | 57% | 2267 fps | 98.9% |
| IMR 4227 | <<locked>> | 80% | 45,745 psi | 76% | 2415 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 48,167 psi | 80% | 2559 fps | 95.1% |
| Lovex D073.4 | 35.8 gr | 84% | 41,872 psi | 70% | 2464 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 92% | 44,512 psi | 74% | 2503 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 98% | 41,945 psi | 70% | 2510 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 45,179 psi | 75% | 2382 fps | 100% |
| Norma 200 | <<locked>> | 80% | 36,695 psi | 61% | 2343 fps | 99.2% |
| Norma 202 | <<locked>> | 94% | 38,537 psi | 64% | 2418 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,583 psi | 39% | 1421 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,701 psi | 76% | 2448 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 42,598 psi | 71% | 2467 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 92% | 40,335 psi | 67% | 2418 fps | 95.7% |
| Shooters World AR Plus | 35.8 gr | 84% | 41,872 psi | 70% | 2464 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 98% | 41,945 psi | 70% | 2510 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,553 psi | 69% | 2195 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 39,102 psi | 65% | 2418 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,851 psi | 55% | 2264 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 39,436 psi | 66% | 2349 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 35,708 psi | 59% | 2293 fps | 95.6% |
| Somchem S321 | <<locked>> | 96% | 48,979 psi | 81% | 2595 fps | 95.6% |
| Somchem S335 | <<locked>> | 90% | 35,853 psi | 60% | 2303 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 38,856 psi | 65% | 2333 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,111 psi | 52% | 2185 fps | 97% |
| Vihtavuori N133 | <<locked>> | 84% | 30,516 psi | 51% | 2182 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 88% | 28,529 psi | 47% | 2211 fps | 95% |
| Vihtavuori N140 | <<locked>> | 94% | 36,579 psi | 61% | 2356 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 98% | 48,646 psi | 81% | 2562 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 98% | 40,089 psi | 67% | 2441 fps | 95.6% |
| Winchester 748 | <<locked>> | 98% | 46,456 psi | 77% | 2589 fps | 95.6% |
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 51 powders for .307 Win. loaded with the .308 | 146gr | Norma FMJ Spitz. ADI AR 2219 delivers the highest muzzle velocity at 2,674 fps; across all powders the maximum-charge window runs from 1,558 fps to 2,674 fps. Accurate 2015 gives the best case fill at 100 %, and 51 of the 51 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 146.0 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. Hodgdon H322, Shooters World AR Plus, Lovex D073.4 rank at the top here: for .307 Win. with the .308 | 146gr | Norma FMJ Spitz 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.