Load Specifications
Load data in caliber .307 Win. with .311 | 150gr | Norma Semi Soft Point bullet and 56 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S321, Hodgdon H322 and SNPE Vectan SP 10.
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% | 51,126 psi | 85% | 2490 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 51,837 psi | 86% | 2575 fps | 99.9% |
| Accurate 2460 | <<locked>> | 96% | 54,143 psi | 90% | 2631 fps | 98.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 43,236 psi | 72% | 2510 fps | 99.5% |
| Accurate 2520 | <<locked>> | 98% | 50,763 psi | 84% | 2621 fps | 98.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 40,176 psi | 67% | 2474 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 90% | 51,982 psi | 86% | 2507 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 90% | 52,402 psi | 87% | 2516 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 88% | 52,011 psi | 86% | 2546 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 53,461 psi | 89% | 2644 fps | 99.6% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 54,360 psi | 90% | 2638 fps | 97% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 51,169 psi | 85% | 2648 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 51,300 psi | 85% | 2677 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 94% | 52,402 psi | 87% | 2598 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 53,650 psi | 89% | 2556 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 53,795 psi | 89% | 2546 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 98% | 54,012 psi | 90% | 2592 fps | 97.6% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 51,866 psi | 86% | 2657 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 94% | 51,764 psi | 86% | 2621 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 94% | 53,084 psi | 88% | 2644 fps | 98.9% |
| Hodgdon H4198 | <<locked>> | 88% | 53,940 psi | 90% | 2549 fps | 99.4% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 51,314 psi | 85% | 2628 fps | 95.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,518 psi | 54% | 1552 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 48,704 psi | 81% | 2635 fps | 99.6% |
| IMR 4198 | <<locked>> | 94% | 53,766 psi | 89% | 2575 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 54,128 psi | 90% | 2513 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 54,360 psi | 90% | 2638 fps | 97% |
| Lovex D073.4 | <<locked>> | 88% | 51,155 psi | 85% | 2595 fps | 98% |
| Lovex D073.5 | <<locked>> | 96% | 54,346 psi | 90% | 2635 fps | 97.9% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 48,037 psi | 80% | 2592 fps | 97.6% |
| Lovex S053 | <<locked>> | 84% | 52,533 psi | 87% | 2461 fps | 100% |
| Norma 200 | <<locked>> | 90% | 52,924 psi | 88% | 2585 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 49,705 psi | 83% | 2569 fps | 96.2% |
| Norma 202ᴾ | <<locked>> | 100% | 49,487 psi | 82% | 2589 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,576 psi | 54% | 1591 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 54,230 psi | 90% | 2549 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 51,343 psi | 85% | 2595 fps | 97.9% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 53,838 psi | 89% | 2621 fps | 98.9% |
| Shooters World AR Plus | <<locked>> | 88% | 51,155 psi | 85% | 2595 fps | 98% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 48,037 psi | 80% | 2592 fps | 97.6% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 52,330 psi | 87% | 2566 fps | 96.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 53,519 psi | 89% | 2329 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 54,128 psi | 90% | 2651 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 53,548 psi | 89% | 2612 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 53,098 psi | 88% | 2552 fps | 98.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 42,525 psi | 71% | 2405 fps | 98% |
| Somchem S321 | <<locked>> | 96% | 51,953 psi | 86% | 2625 fps | 96.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 51,445 psi | 85% | 2552 fps | 99.2% |
| Vihtavuori N120 | <<locked>> | 88% | 52,011 psi | 86% | 2503 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 53,113 psi | 88% | 2552 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 52,170 psi | 87% | 2552 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 44,092 psi | 73% | 2513 fps | 99.6% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 46,760 psi | 78% | 2523 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 98% | 51,663 psi | 86% | 2592 fps | 96.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 45,382 psi | 75% | 2513 fps | 97.5% |
| Winchester 748ᴾ | <<locked>> | 100% | 52,808 psi | 88% | 2674 fps | 97.7% |
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% | 44,947 psi | 75% | 2402 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 29,544 psi | 49% | 2169 fps | 96% |
| Accurate 2460 | <<locked>> | 86% | 38,667 psi | 64% | 2382 fps | 95.8% |
| Accurate 2495 | <<locked>> | 86% | 27,166 psi | 45% | 2175 fps | 95.4% |
| Accurate 2520 | <<locked>> | 90% | 38,624 psi | 64% | 2418 fps | 95.3% |
| Accurate 4064 | <<locked>> | 96% | 35,360 psi | 59% | 2379 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 38,290 psi | 64% | 2277 fps | 97.3% |
| Accurate LT-32 | <<locked>> | 80% | 38,667 psi | 64% | 2283 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 40,625 psi | 67% | 2375 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 35,737 psi | 59% | 2339 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 96% | 47,805 psi | 79% | 2539 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 27,195 psi | 45% | 2178 fps | 97.6% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 48,153 psi | 80% | 2625 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,171 psi | 57% | 2283 fps | 98.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 41,974 psi | 70% | 2382 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,695 psi | 61% | 2270 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 90% | 42,685 psi | 71% | 2408 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 96% | 44,991 psi | 75% | 2549 fps | 95.7% |
| Hodgdon H322 | 32.8 gr | 80% | 32,793 psi | 54% | 2270 fps | 95.2% |
| Hodgdon H335 | <<locked>> | 84% | 37,869 psi | 63% | 2385 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 80% | 42,163 psi | 70% | 2362 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 98% | 48,269 psi | 80% | 2579 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,178 psi | 40% | 1388 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 31,241 psi | 52% | 2287 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 35,955 psi | 60% | 2283 fps | 99.5% |
| IMR 4227 | <<locked>> | 80% | 48,022 psi | 80% | 2428 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 47,805 psi | 79% | 2539 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 38,725 psi | 64% | 2385 fps | 95% |
| Lovex D073.5 | <<locked>> | 88% | 41,249 psi | 69% | 2428 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 94% | 39,305 psi | 65% | 2441 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 47,137 psi | 78% | 2385 fps | 100% |
| Norma 200 | <<locked>> | 80% | 38,522 psi | 64% | 2356 fps | 99.7% |
| Norma 201 | <<locked>> | 98% | 46,775 psi | 78% | 2523 fps | 95.5% |
| Norma 202 | <<locked>> | 90% | 36,260 psi | 60% | 2352 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,076 psi | 40% | 1421 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 47,935 psi | 80% | 2461 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 39,610 psi | 66% | 2395 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 88% | 37,768 psi | 63% | 2346 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 80% | 38,725 psi | 64% | 2385 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 94% | 39,305 psi | 65% | 2441 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 48,820 psi | 81% | 2513 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 43,453 psi | 72% | 2198 fps | 100% |
| SNPE Vectan SP 10 | 35.1 gr | 80% | 36,245 psi | 60% | 2343 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,751 psi | 58% | 2290 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 36,898 psi | 61% | 2283 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 33,388 psi | 55% | 2228 fps | 95.4% |
| Somchem S321 | 40.7 gr | 92% | 45,629 psi | 76% | 2526 fps | 95.5% |
| Somchem S335 | <<locked>> | 86% | 33,765 psi | 56% | 2241 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 40,756 psi | 68% | 2339 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,866 psi | 55% | 2208 fps | 98% |
| Vihtavuori N133 | <<locked>> | 80% | 28,572 psi | 47% | 2119 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 86% | 28,572 psi | 47% | 2195 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 90% | 34,360 psi | 57% | 2293 fps | 95% |
| Vihtavuori N530 | <<locked>> | 94% | 45,194 psi | 75% | 2487 fps | 95% |
| Vihtavuori N540 | <<locked>> | 94% | 37,449 psi | 62% | 2372 fps | 95.4% |
| Winchester 748 | <<locked>> | 94% | 43,294 psi | 72% | 2516 fps | 95.5% |
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 .311 | 150gr | Norma Semi Soft Point. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,677 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,677 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 0.311" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI Benchmark 8208 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. Somchem S321, Hodgdon H322, SNPE Vectan SP 10 rank at the top here: for .307 Win. with the .311 | 150gr | Norma Semi Soft Point 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.