Load Specifications
Load data in caliber .307 Win. with .308 | 150gr | RWS Kegelspitz bullet and 56 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>> | 84% | 51,677 psi | 86% | 2503 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 52,417 psi | 87% | 2589 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 51,343 psi | 85% | 2598 fps | 98.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 43,787 psi | 73% | 2523 fps | 99.6% |
| Accurate 2520 | <<locked>> | 98% | 51,648 psi | 86% | 2641 fps | 98.3% |
| Accurate 4064ᴾ | <<locked>> | 100% | 40,683 psi | 68% | 2487 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 90% | 52,518 psi | 87% | 2520 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 90% | 52,968 psi | 88% | 2530 fps | 98.5% |
| ADI AR 2207 | <<locked>> | 88% | 52,301 psi | 87% | 2552 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 54,027 psi | 90% | 2657 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 98% | 51,634 psi | 86% | 2605 fps | 96.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 52,199 psi | 87% | 2664 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 51,909 psi | 86% | 2690 fps | 96.1% |
| Alliant Reloder-10x | <<locked>> | 94% | 52,982 psi | 88% | 2612 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 53,896 psi | 90% | 2566 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 54,201 psi | 90% | 2559 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 51,387 psi | 85% | 2559 fps | 97.2% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 52,301 psi | 87% | 2667 fps | 97.4% |
| Hodgdon H322 | <<locked>> | 94% | 52,330 psi | 87% | 2635 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 94% | 53,563 psi | 89% | 2654 fps | 99% |
| Hodgdon H4198 | <<locked>> | 86% | 51,372 psi | 85% | 2520 fps | 99.2% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 51,779 psi | 86% | 2638 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,779 psi | 54% | 1562 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 49,226 psi | 82% | 2648 fps | 99.7% |
| IMR 4198 | <<locked>> | 94% | 54,418 psi | 90% | 2589 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 54,433 psi | 90% | 2520 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 51,634 psi | 86% | 2605 fps | 96.6% |
| Lovex D073.4 | <<locked>> | 88% | 51,822 psi | 86% | 2612 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 94% | 51,488 psi | 86% | 2602 fps | 97.5% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 49,008 psi | 81% | 2612 fps | 97.9% |
| Lovex S053 | <<locked>> | 84% | 53,287 psi | 89% | 2474 fps | 100% |
| Norma 200 | <<locked>> | 90% | 53,127 psi | 88% | 2592 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,198 psi | 83% | 2582 fps | 96.4% |
| Norma 202ᴾ | <<locked>> | 100% | 49,980 psi | 83% | 2602 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,822 psi | 55% | 1598 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 54,462 psi | 90% | 2556 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 51,924 psi | 86% | 2608 fps | 98% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 54,375 psi | 90% | 2635 fps | 99% |
| Shooters World AR Plus | <<locked>> | 88% | 51,822 psi | 86% | 2612 fps | 98.2% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 49,008 psi | 81% | 2612 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 52,852 psi | 88% | 2579 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 53,925 psi | 90% | 2336 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 51,097 psi | 85% | 2612 fps | 98.7% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 54,186 psi | 90% | 2625 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 54,012 psi | 90% | 2569 fps | 99% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 43,294 psi | 72% | 2425 fps | 98.2% |
| Somchem S321 | <<locked>> | 96% | 52,765 psi | 88% | 2641 fps | 97.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 51,924 psi | 86% | 2562 fps | 99.3% |
| Vihtavuori N120 | <<locked>> | 88% | 52,344 psi | 87% | 2510 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 53,708 psi | 89% | 2566 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 53,084 psi | 88% | 2569 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 45,020 psi | 75% | 2533 fps | 99.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 47,558 psi | 79% | 2539 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 98% | 52,141 psi | 87% | 2602 fps | 96.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 45,774 psi | 76% | 2526 fps | 97.7% |
| Winchester 748ᴾ | <<locked>> | 100% | 53,287 psi | 89% | 2687 fps | 97.8% |
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% | 45,179 psi | 75% | 2408 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 30,081 psi | 50% | 2185 fps | 96.3% |
| Accurate 2460 | <<locked>> | 84% | 36,564 psi | 61% | 2343 fps | 95.2% |
| Accurate 2495 | <<locked>> | 86% | 27,427 psi | 46% | 2185 fps | 95.6% |
| Accurate 2520 | <<locked>> | 90% | 39,088 psi | 65% | 2431 fps | 95.5% |
| Accurate 4064 | <<locked>> | 94% | 33,678 psi | 56% | 2346 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 38,841 psi | 65% | 2293 fps | 97.5% |
| Accurate LT-32 | <<locked>> | 80% | 39,218 psi | 65% | 2300 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 40,959 psi | 68% | 2385 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,216 psi | 60% | 2352 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 94% | 45,469 psi | 76% | 2503 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 27,427 psi | 46% | 2188 fps | 97.8% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 48,762 psi | 81% | 2638 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,461 psi | 57% | 2293 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,250 psi | 70% | 2388 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,869 psi | 61% | 2277 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 43,120 psi | 72% | 2421 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 42,743 psi | 71% | 2513 fps | 95.2% |
| Hodgdon H322 | 33.2 gr | 80% | 33,257 psi | 55% | 2287 fps | 95.4% |
| Hodgdon H335 | <<locked>> | 82% | 35,810 psi | 59% | 2346 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 42,772 psi | 71% | 2379 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 98% | 48,704 psi | 81% | 2589 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,178 psi | 40% | 1391 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 31,720 psi | 53% | 2303 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 36,274 psi | 60% | 2293 fps | 99.6% |
| IMR 4227 | <<locked>> | 80% | 48,341 psi | 80% | 2438 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 45,469 psi | 76% | 2503 fps | 95.1% |
| Lovex D073.4 | 35.6 gr | 80% | 39,233 psi | 65% | 2398 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 88% | 41,727 psi | 69% | 2441 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 94% | 39,769 psi | 66% | 2454 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 47,485 psi | 79% | 2395 fps | 100% |
| Norma 200 | <<locked>> | 80% | 39,117 psi | 65% | 2372 fps | 99.8% |
| Norma 201 | <<locked>> | 96% | 44,469 psi | 74% | 2487 fps | 95% |
| Norma 202 | <<locked>> | 90% | 36,448 psi | 61% | 2362 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,091 psi | 40% | 1424 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 48,225 psi | 80% | 2470 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 40,089 psi | 67% | 2408 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 86% | 36,085 psi | 60% | 2316 fps | 95.1% |
| Shooters World AR Plus | 35.6 gr | 80% | 39,233 psi | 65% | 2398 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 94% | 39,769 psi | 66% | 2454 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 49,284 psi | 82% | 2526 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 43,526 psi | 72% | 2201 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 36,724 psi | 61% | 2356 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,070 psi | 58% | 2300 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 37,101 psi | 62% | 2293 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 33,794 psi | 56% | 2241 fps | 95.7% |
| Somchem S321 | <<locked>> | 92% | 46,035 psi | 76% | 2536 fps | 95.7% |
| Somchem S335 | <<locked>> | 86% | 34,026 psi | 57% | 2247 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 41,060 psi | 68% | 2349 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,112 psi | 55% | 2218 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 80% | 28,805 psi | 48% | 2126 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 84% | 27,238 psi | 45% | 2162 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 90% | 34,490 psi | 57% | 2300 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 94% | 45,672 psi | 76% | 2500 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 94% | 37,913 psi | 63% | 2382 fps | 95.7% |
| Winchester 748 | <<locked>> | 94% | 43,729 psi | 73% | 2530 fps | 95.7% |
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 56 powders for .307 Win. loaded with the .308 | 150gr | RWS Kegelspitz. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,690 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,690 fps. Accurate 2495 gives the best case fill at 100 %, and 56 of the 56 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 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant AR-Comp 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 | 150gr | RWS Kegelspitz 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.