Load Specifications
Load data in caliber .307 Win. with .308 | 150gr | Norma Semi Soft Point bullet and 57 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>> | 84% | 51,692 psi | 86% | 2507 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 52,837 psi | 88% | 2598 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 51,372 psi | 85% | 2602 fps | 98.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 44,208 psi | 73% | 2533 fps | 99.7% |
| Accurate 2520 | <<locked>> | 98% | 51,663 psi | 86% | 2641 fps | 98.3% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,046 psi | 68% | 2497 fps | 97.5% |
| Accurate LT-30 | <<locked>> | 90% | 52,576 psi | 87% | 2523 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 90% | 52,982 psi | 88% | 2533 fps | 98.5% |
| ADI AR 2207 | <<locked>> | 88% | 52,779 psi | 88% | 2562 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 54,462 psi | 90% | 2667 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 98% | 51,634 psi | 86% | 2605 fps | 96.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 52,170 psi | 87% | 2667 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 52,359 psi | 87% | 2700 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 94% | 53,055 psi | 88% | 2615 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 54,346 psi | 90% | 2572 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 54,128 psi | 90% | 2559 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 51,822 psi | 86% | 2566 fps | 97.3% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 52,649 psi | 87% | 2677 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 94% | 52,417 psi | 87% | 2638 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 94% | 53,548 psi | 89% | 2657 fps | 99.1% |
| Hodgdon H4198 | <<locked>> | 86% | 51,430 psi | 85% | 2523 fps | 99.2% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 52,156 psi | 87% | 2648 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,634 psi | 54% | 1558 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 49,690 psi | 83% | 2657 fps | 99.7% |
| IMR 4198 | <<locked>> | 92% | 51,634 psi | 86% | 2552 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 51,634 psi | 86% | 2487 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 51,634 psi | 86% | 2605 fps | 96.6% |
| Lovex D073.4 | <<locked>> | 88% | 52,243 psi | 87% | 2621 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 94% | 51,503 psi | 86% | 2602 fps | 97.6% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 48,921 psi | 81% | 2615 fps | 97.9% |
| Lovex S053 | <<locked>> | 84% | 53,359 psi | 89% | 2477 fps | 100% |
| Norma 200 | <<locked>> | 90% | 53,606 psi | 89% | 2602 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,647 psi | 84% | 2592 fps | 96.5% |
| Norma 202ᴾ | <<locked>> | 100% | 50,430 psi | 84% | 2612 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,692 psi | 54% | 1598 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 51,300 psi | 85% | 2516 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 51,895 psi | 86% | 2612 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 98% | 51,677 psi | 86% | 2598 fps | 98.7% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 47,630 psi | 79% | 2536 fps | 95.8% |
| Shooters World AR Plus | <<locked>> | 88% | 52,243 psi | 87% | 2621 fps | 98.2% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 48,921 psi | 81% | 2615 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 52,794 psi | 88% | 2582 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 53,998 psi | 90% | 2339 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 51,445 psi | 85% | 2621 fps | 98.8% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 54,201 psi | 90% | 2628 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 54,012 psi | 90% | 2572 fps | 99% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 43,352 psi | 72% | 2428 fps | 98.3% |
| Somchem S321 | <<locked>> | 96% | 52,765 psi | 88% | 2644 fps | 97.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 52,272 psi | 87% | 2572 fps | 99.4% |
| Vihtavuori N120 | <<locked>> | 88% | 52,823 psi | 88% | 2516 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 53,751 psi | 89% | 2569 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 53,069 psi | 88% | 2572 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 45,107 psi | 75% | 2536 fps | 99.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 47,601 psi | 79% | 2543 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 98% | 52,533 psi | 87% | 2612 fps | 96.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,064 psi | 77% | 2533 fps | 97.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 53,650 psi | 89% | 2694 fps | 97.9% |
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 45,527 psi | 76% | 2415 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 30,153 psi | 50% | 2188 fps | 96.3% |
| Accurate 2460 | <<locked>> | 84% | 36,651 psi | 61% | 2346 fps | 95.3% |
| Accurate 2495 | <<locked>> | 86% | 27,514 psi | 46% | 2188 fps | 95.7% |
| Accurate 2520 | <<locked>> | 90% | 39,160 psi | 65% | 2434 fps | 95.6% |
| Accurate 4064 | <<locked>> | 94% | 33,736 psi | 56% | 2349 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 38,870 psi | 65% | 2297 fps | 97.6% |
| Accurate LT-32 | <<locked>> | 80% | 39,247 psi | 65% | 2300 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 41,394 psi | 69% | 2395 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,303 psi | 60% | 2356 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 94% | 45,803 psi | 76% | 2513 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 27,485 psi | 46% | 2192 fps | 97.8% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 48,820 psi | 81% | 2644 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,577 psi | 57% | 2300 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,351 psi | 70% | 2392 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,173 psi | 62% | 2283 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 90% | 43,163 psi | 72% | 2425 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 42,786 psi | 71% | 2516 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 33,315 psi | 55% | 2290 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 82% | 35,868 psi | 60% | 2349 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 42,873 psi | 71% | 2382 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 98% | 48,747 psi | 81% | 2592 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,091 psi | 40% | 1391 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 29,878 psi | 50% | 2257 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 36,347 psi | 60% | 2297 fps | 99.6% |
| IMR 4227 | <<locked>> | 80% | 48,486 psi | 81% | 2441 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 45,803 psi | 76% | 2513 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 39,349 psi | 65% | 2402 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 88% | 41,785 psi | 69% | 2444 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 94% | 40,147 psi | 67% | 2464 fps | 95.9% |
| Lovex S053 | <<locked>> | 80% | 47,558 psi | 79% | 2398 fps | 100% |
| Norma 200 | <<locked>> | 80% | 39,218 psi | 65% | 2375 fps | 99.8% |
| Norma 201 | <<locked>> | 96% | 44,440 psi | 74% | 2490 fps | 95% |
| Norma 202 | <<locked>> | 90% | 36,796 psi | 61% | 2372 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,004 psi | 40% | 1424 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 48,312 psi | 80% | 2470 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 40,147 psi | 67% | 2411 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 86% | 36,129 psi | 60% | 2320 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 98% | 44,831 psi | 74% | 2490 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 39,349 psi | 65% | 2402 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 94% | 40,147 psi | 67% | 2464 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 49,240 psi | 82% | 2526 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 43,947 psi | 73% | 2211 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 36,782 psi | 61% | 2359 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,157 psi | 58% | 2303 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 35,186 psi | 58% | 2254 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 32,068 psi | 53% | 2205 fps | 95.1% |
| Somchem S321 | <<locked>> | 92% | 46,064 psi | 77% | 2539 fps | 95.7% |
| Somchem S335 | <<locked>> | 86% | 34,055 psi | 57% | 2251 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 41,466 psi | 69% | 2356 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,228 psi | 55% | 2221 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 80% | 28,892 psi | 48% | 2133 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 84% | 27,325 psi | 45% | 2165 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 90% | 34,795 psi | 58% | 2310 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 94% | 46,021 psi | 76% | 2510 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 94% | 37,884 psi | 63% | 2385 fps | 95.7% |
| Winchester 748 | <<locked>> | 92% | 41,176 psi | 68% | 2484 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 88 powders for .307 Win. loaded with the .308 | 150gr | Norma Semi Soft Point. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,558 fps to 2,700 fps. Accurate 2495 gives the best case fill at 100 %, and 88 of the 88 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 150.0 gr projectile in 0.308" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2206H 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. As outliers, Accurate 2200, Accurate 2230, ADI AR 2208 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.