Load Specifications
Load data in caliber .307 Win. with .308 | 155gr | Nosler Custom Competition bullet and 55 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>> | 86% | 53,940 psi | 90% | 2470 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 54,143 psi | 90% | 2549 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 53,011 psi | 88% | 2559 fps | 98.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 42,279 psi | 70% | 2441 fps | 99.5% |
| Accurate 2520ᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2602 fps | 98.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 39,305 psi | 65% | 2408 fps | 97% |
| Accurate LT-30 | <<locked>> | 92% | 54,259 psi | 90% | 2480 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 90% | 51,851 psi | 86% | 2448 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 90% | 54,447 psi | 90% | 2516 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 52,808 psi | 88% | 2575 fps | 99.5% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 53,229 psi | 88% | 2562 fps | 96.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 50,169 psi | 83% | 2575 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 53,577 psi | 89% | 2651 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 94% | 51,764 psi | 86% | 2533 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 52,866 psi | 88% | 2487 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 52,678 psi | 88% | 2474 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 98% | 53,185 psi | 88% | 2520 fps | 97.5% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 50,720 psi | 84% | 2582 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 96% | 54,143 psi | 90% | 2595 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 94% | 52,011 psi | 86% | 2569 fps | 98.8% |
| Hodgdon H4198 | <<locked>> | 88% | 53,214 psi | 88% | 2480 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,401 psi | 54% | 1506 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,761 psi | 79% | 2562 fps | 99.6% |
| IMR 4198 | <<locked>> | 94% | 52,881 psi | 88% | 2503 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 53,301 psi | 89% | 2441 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 53,229 psi | 88% | 2562 fps | 96.9% |
| Lovex D073.4 | <<locked>> | 90% | 54,012 psi | 90% | 2579 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 96% | 53,301 psi | 89% | 2562 fps | 97.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 47,050 psi | 78% | 2520 fps | 97.5% |
| Lovex S053 | <<locked>> | 84% | 51,953 psi | 86% | 2395 fps | 100% |
| Norma 200 | <<locked>> | 90% | 51,764 psi | 86% | 2510 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 48,936 psi | 81% | 2500 fps | 96.1% |
| Norma 202ᴾ | <<locked>> | 100% | 48,631 psi | 81% | 2520 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,489 psi | 54% | 1545 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 53,171 psi | 88% | 2474 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 53,795 psi | 89% | 2572 fps | 98.3% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 53,200 psi | 88% | 2552 fps | 98.8% |
| Shooters World AR Plus | <<locked>> | 90% | 54,012 psi | 90% | 2579 fps | 98.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 47,050 psi | 78% | 2520 fps | 97.5% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 51,126 psi | 85% | 2490 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 52,852 psi | 88% | 2264 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 53,258 psi | 88% | 2582 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 52,924 psi | 88% | 2543 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 52,504 psi | 87% | 2484 fps | 98.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,989 psi | 70% | 2343 fps | 98% |
| Somchem S321 | <<locked>> | 96% | 51,024 psi | 85% | 2552 fps | 96.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 50,691 psi | 84% | 2484 fps | 99.2% |
| Vihtavuori N120 | <<locked>> | 90% | 54,462 psi | 90% | 2474 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 52,257 psi | 87% | 2484 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 51,517 psi | 86% | 2487 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 43,410 psi | 72% | 2448 fps | 99.6% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 46,050 psi | 77% | 2457 fps | 98.2% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 53,954 psi | 90% | 2562 fps | 97% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 44,498 psi | 74% | 2444 fps | 97.4% |
| Winchester 748ᴾ | <<locked>> | 100% | 51,953 psi | 86% | 2602 fps | 97.6% |
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 44,208 psi | 73% | 2333 fps | 99.8% |
| Accurate 2015 | <<locked>> | 80% | 29,153 psi | 48% | 2110 fps | 96% |
| Accurate 2460 | <<locked>> | 86% | 37,956 psi | 63% | 2316 fps | 95.7% |
| Accurate 2495 | <<locked>> | 86% | 26,527 psi | 44% | 2116 fps | 95.3% |
| Accurate 2520 | <<locked>> | 90% | 37,739 psi | 63% | 2349 fps | 95.1% |
| Accurate 4064 | <<locked>> | 96% | 34,418 psi | 57% | 2310 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 37,942 psi | 63% | 2218 fps | 97.3% |
| Accurate LT-32 | <<locked>> | 80% | 38,334 psi | 64% | 2224 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 40,016 psi | 66% | 2310 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 35,302 psi | 59% | 2277 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 96% | 46,920 psi | 78% | 2467 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 26,687 psi | 44% | 2116 fps | 97.5% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 47,326 psi | 79% | 2552 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,692 psi | 56% | 2221 fps | 98.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 41,292 psi | 69% | 2313 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,969 psi | 60% | 2205 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 92% | 44,556 psi | 74% | 2385 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 96% | 44,106 psi | 73% | 2477 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 32,242 psi | 54% | 2208 fps | 95.1% |
| Hodgdon H335 | <<locked>> | 84% | 37,159 psi | 62% | 2320 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 41,858 psi | 70% | 2303 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,033 psi | 40% | 1348 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 30,879 psi | 51% | 2231 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 35,389 psi | 59% | 2218 fps | 99.4% |
| IMR 4227 | <<locked>> | 80% | 47,384 psi | 79% | 2362 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 46,920 psi | 78% | 2467 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 82% | 41,046 psi | 68% | 2375 fps | 95.8% |
| Lovex D073.5 | <<locked>> | 90% | 43,410 psi | 72% | 2411 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 94% | 38,493 psi | 64% | 2375 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 46,427 psi | 77% | 2320 fps | 100% |
| Norma 200 | <<locked>> | 80% | 38,101 psi | 63% | 2297 fps | 99.7% |
| Norma 201 | <<locked>> | 98% | 45,847 psi | 76% | 2451 fps | 95.4% |
| Norma 202 | <<locked>> | 90% | 35,491 psi | 59% | 2287 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,960 psi | 40% | 1378 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 47,123 psi | 78% | 2392 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 39,088 psi | 65% | 2329 fps | 95% |
| Rottweil R 901 | <<locked>> | 88% | 37,391 psi | 62% | 2287 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 82% | 41,046 psi | 68% | 2375 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 94% | 38,493 psi | 64% | 2375 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 47,921 psi | 80% | 2441 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,830 psi | 71% | 2136 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,636 psi | 59% | 2277 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,055 psi | 57% | 2221 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 36,187 psi | 60% | 2218 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 32,924 psi | 55% | 2169 fps | 95.3% |
| Somchem S321 | <<locked>> | 92% | 44,541 psi | 74% | 2451 fps | 95.3% |
| Somchem S335 | <<locked>> | 86% | 33,199 psi | 55% | 2178 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 40,176 psi | 67% | 2277 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,184 psi | 53% | 2142 fps | 97.9% |
| Vihtavuori N133 | <<locked>> | 80% | 27,978 psi | 46% | 2054 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 86% | 28,108 psi | 47% | 2136 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 92% | 35,911 psi | 60% | 2274 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 96% | 47,630 psi | 79% | 2474 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 94% | 36,796 psi | 61% | 2306 fps | 95.3% |
| Winchester 748 | <<locked>> | 94% | 42,598 psi | 71% | 2451 fps | 95.4% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 86 powders for .307 Win. loaded with the .308 | 155gr | Nosler Custom Competition. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,651 fps; across all powders the maximum-charge window runs from 1,506 fps to 2,651 fps. Accurate 2015 gives the best case fill at 100 %, and 86 of the 86 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 155.0 gr projectile in 0.308" calls for a 1:14.5 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. 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.