Load Specifications
Load data in caliber .307 Win. with .311 | 170gr | Prvi Partizan FMJ BT bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Hodgdon H322 and Shooters World AR Plus.
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% | 52,272 psi | 87% | 2323 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 53,200 psi | 88% | 2405 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 51,996 psi | 86% | 2418 fps | 99.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 44,353 psi | 74% | 2349 fps | 99.9% |
| Accurate 2520 | <<locked>> | 98% | 52,127 psi | 87% | 2457 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,220 psi | 68% | 2320 fps | 98.2% |
| Accurate LT-30 | <<locked>> | 90% | 52,939 psi | 88% | 2336 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 90% | 53,447 psi | 89% | 2346 fps | 99.1% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 52,344 psi | 87% | 2451 fps | 96.2% |
| ADI AR 2207 | <<locked>> | 88% | 52,953 psi | 88% | 2362 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 51,329 psi | 85% | 2428 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 98% | 52,069 psi | 87% | 2421 fps | 97.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 52,591 psi | 87% | 2467 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 52,794 psi | 88% | 2510 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 94% | 53,853 psi | 89% | 2425 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 51,547 psi | 86% | 2339 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 51,488 psi | 86% | 2333 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 96% | 52,156 psi | 87% | 2382 fps | 98% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 52,837 psi | 88% | 2484 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 94% | 53,171 psi | 88% | 2451 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 94% | 54,041 psi | 90% | 2467 fps | 99.5% |
| Hodgdon H4198 | <<locked>> | 86% | 52,098 psi | 87% | 2339 fps | 99.6% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 52,576 psi | 87% | 2461 fps | 96.9% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,514 psi | 79% | 2425 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,040 psi | 55% | 1430 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 50,995 psi | 85% | 2418 fps | 96.4% |
| IMR 3031ᴾ | <<locked>> | 100% | 50,009 psi | 83% | 2464 fps | 99.9% |
| IMR 4198 | <<locked>> | 92% | 51,851 psi | 86% | 2356 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 51,880 psi | 86% | 2290 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 52,069 psi | 87% | 2421 fps | 97.5% |
| Lovex D073.4 | <<locked>> | 88% | 52,663 psi | 87% | 2431 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 94% | 52,040 psi | 86% | 2418 fps | 98.3% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 49,429 psi | 82% | 2431 fps | 98.6% |
| Lovex S053 | <<locked>> | 84% | 53,650 psi | 89% | 2280 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 53,853 psi | 89% | 2395 fps | 96.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 44,976 psi | 75% | 2333 fps | 96.1% |
| Norma 200 | <<locked>> | 90% | 53,867 psi | 89% | 2405 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,662 psi | 84% | 2402 fps | 97.3% |
| Norma 202ᴾ | <<locked>> | 100% | 50,589 psi | 84% | 2421 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 98% | 51,053 psi | 85% | 2438 fps | 95.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,851 psi | 55% | 1460 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 51,953 psi | 86% | 2326 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 52,518 psi | 87% | 2425 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 98% | 52,243 psi | 87% | 2411 fps | 99.2% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 47,950 psi | 80% | 2356 fps | 96.7% |
| Shooters World AR Plus | <<locked>> | 88% | 52,663 psi | 87% | 2431 fps | 98.8% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 49,429 psi | 82% | 2431 fps | 98.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 44,976 psi | 75% | 2333 fps | 96.1% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 53,330 psi | 89% | 2398 fps | 97.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 54,230 psi | 90% | 2152 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 51,735 psi | 86% | 2431 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 51,488 psi | 86% | 2392 fps | 100% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 54,433 psi | 90% | 2385 fps | 99.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 43,685 psi | 73% | 2251 fps | 98.9% |
| Somchem S321 | <<locked>> | 96% | 53,243 psi | 88% | 2457 fps | 97.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 52,388 psi | 87% | 2379 fps | 99.7% |
| Somchem S341ᴾ | <<locked>> | 100% | 52,982 psi | 88% | 2438 fps | 96% |
| Vihtavuori N120 | <<locked>> | 88% | 52,997 psi | 88% | 2320 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 54,418 psi | 90% | 2379 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 53,548 psi | 89% | 2382 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 45,527 psi | 76% | 2352 fps | 99.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,211 psi | 80% | 2365 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 98% | 52,823 psi | 88% | 2425 fps | 97.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,398 psi | 77% | 2356 fps | 98.5% |
| Winchester 748ᴾ | <<locked>> | 100% | 53,925 psi | 90% | 2503 fps | 98.6% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 49,603 psi | 82% | 2425 fps | 96.2% |
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% | 45,803 psi | 76% | 2234 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,545 psi | 51% | 2034 fps | 97.4% |
| Accurate 2460 | <<locked>> | 82% | 34,766 psi | 58% | 2139 fps | 95.6% |
| Accurate 2495 | <<locked>> | 82% | 24,627 psi | 41% | 1959 fps | 95.3% |
| Accurate 2520 | <<locked>> | 86% | 34,519 psi | 57% | 2169 fps | 95% |
| Accurate 4064 | <<locked>> | 92% | 32,126 psi | 53% | 2146 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 39,305 psi | 65% | 2129 fps | 98.3% |
| Accurate LT-32 | <<locked>> | 80% | 39,697 psi | 66% | 2136 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 98% | 49,023 psi | 81% | 2402 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 41,669 psi | 69% | 2211 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,811 psi | 61% | 2192 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 92% | 43,207 psi | 72% | 2283 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 27,949 psi | 46% | 2044 fps | 98.8% |
| Alliant Power Pro 1200-R | 34.1 gr | 90% | 46,427 psi | 77% | 2411 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,157 psi | 58% | 2136 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,931 psi | 71% | 2218 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,434 psi | 62% | 2119 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 38,827 psi | 65% | 2169 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 92% | 40,350 psi | 67% | 2293 fps | 95.5% |
| Hodgdon H322 | 30.3 gr | 80% | 33,794 psi | 56% | 2133 fps | 96.7% |
| Hodgdon H335 | <<locked>> | 80% | 33,982 psi | 56% | 2139 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 43,352 psi | 72% | 2208 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 96% | 46,499 psi | 77% | 2369 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 44,498 psi | 74% | 2375 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,265 psi | 40% | 1273 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 45,092 psi | 75% | 2326 fps | 95% |
| IMR 3031 | <<locked>> | 82% | 28,442 psi | 47% | 2060 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 36,854 psi | 61% | 2129 fps | 99.9% |
| IMR 4227 | <<locked>> | 80% | 48,849 psi | 81% | 2251 fps | 100% |
| IMR 8208 XBR | <<locked>> | 92% | 43,207 psi | 72% | 2283 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 39,958 psi | 66% | 2238 fps | 96.5% |
| Lovex D073.5 | <<locked>> | 86% | 39,407 psi | 65% | 2224 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 90% | 35,259 psi | 59% | 2198 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 48,153 psi | 80% | 2215 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 48,080 psi | 80% | 2313 fps | 95.2% |
| Lovex S062 | <<locked>> | 98% | 42,409 psi | 70% | 2290 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 39,537 psi | 66% | 2198 fps | 100% |
| Norma 201 | <<locked>> | 94% | 42,250 psi | 70% | 2274 fps | 95.4% |
| Norma 202 | <<locked>> | 86% | 32,692 psi | 54% | 2116 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 96% | 47,834 psi | 79% | 2388 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,250 psi | 40% | 1302 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 48,979 psi | 81% | 2287 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 35,911 psi | 60% | 2152 fps | 95% |
| Rottweil R 901 | <<locked>> | 84% | 34,519 psi | 57% | 2116 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 96% | 42,337 psi | 70% | 2267 fps | 95.3% |
| Shooters World AR Plus | 32.5 gr | 80% | 39,958 psi | 66% | 2238 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 35,259 psi | 59% | 2198 fps | 95.3% |
| Shooters World Precision | <<locked>> | 98% | 42,409 psi | 70% | 2290 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 43,555 psi | 72% | 2254 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,353 psi | 74% | 2034 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,304 psi | 62% | 2198 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,520 psi | 59% | 2136 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 33,475 psi | 56% | 2054 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 30,400 psi | 51% | 2008 fps | 95.4% |
| Somchem S321 | <<locked>> | 88% | 40,915 psi | 68% | 2270 fps | 95.2% |
| Somchem S335 | <<locked>> | 82% | 30,647 psi | 51% | 2014 fps | 95.3% |
| Somchem S341 | <<locked>> | 98% | 49,559 psi | 82% | 2392 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 41,800 psi | 69% | 2175 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,489 psi | 56% | 2060 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 80% | 29,138 psi | 48% | 1978 fps | 96.7% |
| Vihtavuori N135 | <<locked>> | 82% | 26,107 psi | 43% | 1975 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 88% | 33,156 psi | 55% | 2106 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 92% | 43,410 psi | 72% | 2283 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 90% | 33,692 psi | 56% | 2133 fps | 95.2% |
| Winchester 748 | <<locked>> | 90% | 39,131 psi | 65% | 2267 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 98% | 46,470 psi | 77% | 2375 fps | 95.4% |
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 66 powders for .307 Win. loaded with the .311 | 170gr | Prvi Partizan FMJ BT. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,510 fps; across all powders the maximum-charge window runs from 1,430 fps to 2,510 fps. Accurate 2495 gives the best case fill at 100 %, and 66 of the 66 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. The 170.0 gr projectile in 0.311" calls for a 1:14.0 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. Alliant Power Pro 1200-R, Hodgdon H322, Shooters World AR Plus rank at the top here: for .307 Win. with the .311 | 170gr | Prvi Partizan FMJ BT 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.