Load Specifications
Load data in caliber .307 Win. with .308 | 150gr | Norma SPFN bullet and 64 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% | 53,432 psi | 89% | 2546 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 51,459 psi | 85% | 2592 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 53,708 psi | 89% | 2651 fps | 99.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 46,354 psi | 77% | 2579 fps | 99.9% |
| Accurate 2520 | <<locked>> | 98% | 54,375 psi | 90% | 2697 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,018 psi | 71% | 2543 fps | 98.1% |
| Accurate LT-30 | <<locked>> | 90% | 54,288 psi | 90% | 2562 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 88% | 51,343 psi | 85% | 2526 fps | 98.5% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 53,693 psi | 89% | 2677 fps | 96% |
| ADI AR 2207 | <<locked>> | 86% | 51,459 psi | 85% | 2556 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 52,910 psi | 88% | 2661 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 98% | 53,838 psi | 89% | 2657 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 98% | 51,126 psi | 85% | 2664 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 54,230 psi | 90% | 2746 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 92% | 51,953 psi | 86% | 2612 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 52,881 psi | 88% | 2569 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 52,808 psi | 88% | 2559 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 53,606 psi | 89% | 2608 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 98% | 51,184 psi | 85% | 2671 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 92% | 50,981 psi | 85% | 2631 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 92% | 52,272 psi | 87% | 2654 fps | 99.1% |
| Hodgdon H4198 | <<locked>> | 86% | 52,968 psi | 88% | 2562 fps | 99.5% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 53,969 psi | 90% | 2694 fps | 96.7% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 49,008 psi | 81% | 2654 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,083 psi | 55% | 1581 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 52,750 psi | 88% | 2651 fps | 96.3% |
| IMR 3031ᴾ | <<locked>> | 100% | 51,793 psi | 86% | 2703 fps | 99.9% |
| IMR 4198 | <<locked>> | 92% | 53,359 psi | 89% | 2589 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 53,185 psi | 88% | 2520 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 53,838 psi | 89% | 2657 fps | 97.4% |
| Lovex D073.4 | <<locked>> | 86% | 50,836 psi | 84% | 2615 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 94% | 53,751 psi | 89% | 2651 fps | 98.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 51,605 psi | 86% | 2667 fps | 98.5% |
| Lovex S053 | <<locked>> | 82% | 51,808 psi | 86% | 2470 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 52,185 psi | 87% | 2579 fps | 95.6% |
| Lovex S062ᴾ | <<locked>> | 100% | 46,673 psi | 78% | 2559 fps | 96% |
| Norma 200 | <<locked>> | 88% | 52,127 psi | 87% | 2595 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 52,475 psi | 87% | 2635 fps | 97.2% |
| Norma 202ᴾ | <<locked>> | 100% | 52,286 psi | 87% | 2654 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,141 psi | 55% | 1621 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 53,127 psi | 88% | 2552 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 53,824 psi | 89% | 2657 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 98% | 53,766 psi | 89% | 2644 fps | 99.1% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 49,487 psi | 82% | 2582 fps | 96.6% |
| Shooters World AR Plus | <<locked>> | 86% | 50,836 psi | 84% | 2615 fps | 98.3% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 51,605 psi | 86% | 2667 fps | 98.5% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 46,673 psi | 78% | 2559 fps | 96% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 51,459 psi | 85% | 2579 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 52,518 psi | 87% | 2336 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 53,403 psi | 89% | 2664 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 53,055 psi | 88% | 2628 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 52,765 psi | 88% | 2572 fps | 99% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 45,136 psi | 75% | 2470 fps | 98.8% |
| Somchem S321 | <<locked>> | 94% | 51,358 psi | 85% | 2641 fps | 97.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 54,143 psi | 90% | 2612 fps | 99.7% |
| Vihtavuori N120 | <<locked>> | 86% | 51,503 psi | 86% | 2513 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 52,388 psi | 87% | 2566 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 51,967 psi | 86% | 2572 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 47,195 psi | 78% | 2579 fps | 99.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 49,748 psi | 83% | 2592 fps | 99% |
| Vihtavuori N530 | <<locked>> | 98% | 54,404 psi | 90% | 2654 fps | 97.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 48,066 psi | 80% | 2579 fps | 98.4% |
| Winchester 748 | <<locked>> | 98% | 52,489 psi | 87% | 2697 fps | 98% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 51,459 psi | 85% | 2657 fps | 96.1% |
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 46,934 psi | 78% | 2451 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,343 psi | 52% | 2228 fps | 97% |
| Accurate 2460 | <<locked>> | 82% | 35,737 psi | 59% | 2339 fps | 95.3% |
| Accurate 2495 | <<locked>> | 84% | 27,122 psi | 45% | 2188 fps | 95.7% |
| Accurate 2520 | <<locked>> | 88% | 38,334 psi | 64% | 2431 fps | 95.6% |
| Accurate 4064 | <<locked>> | 92% | 33,257 psi | 55% | 2349 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 40,030 psi | 67% | 2336 fps | 98.1% |
| Accurate LT-32 | <<locked>> | 80% | 40,408 psi | 67% | 2339 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 98% | 50,662 psi | 84% | 2631 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 42,569 psi | 71% | 2425 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 37,681 psi | 63% | 2402 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 92% | 44,657 psi | 74% | 2507 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 28,776 psi | 48% | 2241 fps | 98.6% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 47,747 psi | 79% | 2641 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,955 psi | 60% | 2339 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,005 psi | 73% | 2434 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,305 psi | 64% | 2320 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 42,192 psi | 70% | 2421 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 92% | 41,916 psi | 70% | 2513 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 34,679 psi | 58% | 2336 fps | 96.3% |
| Hodgdon H335 | <<locked>> | 80% | 34,969 psi | 58% | 2343 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 44,106 psi | 73% | 2421 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 96% | 47,747 psi | 79% | 2592 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 45,919 psi | 76% | 2602 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,482 psi | 41% | 1411 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 49,385 psi | 82% | 2598 fps | 95.5% |
| IMR 3031 | <<locked>> | 82% | 29,298 psi | 49% | 2254 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 37,463 psi | 62% | 2333 fps | 99.8% |
| IMR 4227 | <<locked>> | 80% | 50,067 psi | 83% | 2477 fps | 100% |
| IMR 8208 XBR | <<locked>> | 92% | 44,657 psi | 74% | 2507 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 41,118 psi | 68% | 2451 fps | 96.2% |
| Lovex D073.5 | <<locked>> | 86% | 40,843 psi | 68% | 2441 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 90% | 36,608 psi | 61% | 2405 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 48,849 psi | 81% | 2431 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 49,313 psi | 82% | 2536 fps | 95% |
| Lovex S062 | <<locked>> | 98% | 43,714 psi | 73% | 2510 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 40,567 psi | 67% | 2411 fps | 99.9% |
| Norma 201 | <<locked>> | 94% | 43,743 psi | 73% | 2493 fps | 95.2% |
| Norma 202 | <<locked>> | 88% | 35,853 psi | 60% | 2365 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,410 psi | 41% | 1444 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 50,111 psi | 83% | 2513 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 39,117 psi | 65% | 2405 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 84% | 35,462 psi | 59% | 2316 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 96% | 43,714 psi | 73% | 2484 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 41,118 psi | 68% | 2451 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 36,608 psi | 61% | 2405 fps | 95% |
| Shooters World Precision | <<locked>> | 98% | 43,714 psi | 73% | 2510 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 47,805 psi | 79% | 2523 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,005 psi | 75% | 2238 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,363 psi | 64% | 2405 fps | 96.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,492 psi | 61% | 2346 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 36,506 psi | 61% | 2297 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 31,227 psi | 52% | 2198 fps | 95% |
| Somchem S321 | <<locked>> | 90% | 45,092 psi | 75% | 2536 fps | 95.8% |
| Somchem S335 | <<locked>> | 82% | 31,459 psi | 52% | 2205 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 42,685 psi | 71% | 2385 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,447 psi | 57% | 2260 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 80% | 29,979 psi | 50% | 2169 fps | 96.4% |
| Vihtavuori N135 | <<locked>> | 82% | 26,672 psi | 44% | 2159 fps | 95.2% |
| Vihtavuori N140 | <<locked>> | 88% | 33,939 psi | 56% | 2303 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 92% | 44,759 psi | 74% | 2503 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 90% | 34,896 psi | 58% | 2336 fps | 95% |
| Winchester 748 | <<locked>> | 90% | 40,074 psi | 67% | 2480 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 98% | 48,196 psi | 80% | 2608 fps | 95.3% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 89 powders for .307 Win. loaded with the .308 | 150gr | Norma SPFN. Hodgdon CFE223 delivers the highest muzzle velocity at 2,753 fps; across all powders the maximum-charge window runs from 1,581 fps to 2,753 fps. Accurate 2495 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. 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, ADI AR 2208, Alliant Power Pro 2000-MR 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.