Load Specifications
Load data in caliber .307 Win. with .308 | 220gr | Winchester Silvertip bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and ReloadSwiss RS 60.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 53,040 psi | 88% | 2126 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 51,445 psi | 85% | 2146 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 53,359 psi | 89% | 2175 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,794 psi | 88% | 2195 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 52,982 psi | 88% | 2208 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 44,846 psi | 75% | 2165 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 82% | 53,156 psi | 88% | 2083 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 53,563 psi | 89% | 2100 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 51,851 psi | 86% | 2195 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 96% | 52,634 psi | 87% | 2188 fps | 99% |
| ADI AR 2219 | <<locked>> | 82% | 53,200 psi | 88% | 2175 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 51,430 psi | 85% | 2162 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 90% | 54,302 psi | 90% | 2185 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 52,634 psi | 87% | 2238 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,462 psi | 90% | 2326 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 52,083 psi | 87% | 2211 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 84% | 53,200 psi | 88% | 2129 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 52,866 psi | 88% | 2228 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,411 psi | 75% | 2175 fps | 97.5% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,199 psi | 87% | 2300 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 51,909 psi | 86% | 2083 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 51,126 psi | 85% | 2205 fps | 98.5% |
| Bofors RP3 | <<locked>> | 96% | 51,909 psi | 86% | 2218 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,476 psi | 89% | 2149 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 53,011 psi | 88% | 2224 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 51,474 psi | 86% | 2257 fps | 99% |
| Hodgdon H322 | <<locked>> | 84% | 51,996 psi | 86% | 2159 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,808 psi | 88% | 2182 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 53,824 psi | 89% | 2231 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 90% | 52,301 psi | 87% | 2205 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,437 psi | 69% | 2083 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,157 psi | 90% | 2270 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,766 psi | 58% | 1299 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,693 psi | 89% | 2205 fps | 99.7% |
| IMR 3031 | <<locked>> | 90% | 51,721 psi | 86% | 2198 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 52,214 psi | 87% | 2178 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 92% | 53,084 psi | 88% | 2162 fps | 96% |
| IMR 4198 | <<locked>> | 84% | 53,780 psi | 89% | 2096 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,250 psi | 72% | 2126 fps | 97% |
| IMR 4895 | <<locked>> | 94% | 54,230 psi | 90% | 2251 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 88% | 51,430 psi | 85% | 2162 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 84% | 51,300 psi | 85% | 2152 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 54,172 psi | 90% | 2221 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 52,344 psi | 87% | 2142 fps | 99.4% |
| Lovex S062 | <<locked>> | 94% | 51,706 psi | 86% | 2178 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,473 psi | 84% | 2165 fps | 96.9% |
| Norma 201 | <<locked>> | 92% | 53,882 psi | 90% | 2192 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 54,186 psi | 90% | 2198 fps | 100% |
| Norma 203B | <<locked>> | 94% | 52,011 psi | 86% | 2218 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 45,266 psi | 75% | 2165 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 94% | 52,025 psi | 86% | 2238 fps | 99.3% |
| Ramshot TAC | <<locked>> | 88% | 51,503 psi | 86% | 2169 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,230 psi | 90% | 2231 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 86% | 52,620 psi | 87% | 2165 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,201 psi | 58% | 1332 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 51,010 psi | 85% | 2149 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,360 psi | 90% | 2215 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 52,504 psi | 87% | 2277 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 52,083 psi | 87% | 2303 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 44,773 psi | 74% | 2185 fps | 96.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,021 psi | 76% | 2198 fps | 96.2% |
| Rottweil R 901 | <<locked>> | 88% | 52,170 psi | 87% | 2146 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,404 psi | 90% | 2192 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 51,779 psi | 86% | 2211 fps | 99.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,473 psi | 84% | 2165 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 92% | 54,172 psi | 90% | 2221 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 51,706 psi | 86% | 2178 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,273 psi | 90% | 2165 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,490 psi | 89% | 2185 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,345 psi | 89% | 2257 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,230 psi | 90% | 2149 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 52,910 psi | 88% | 2192 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,635 psi | 89% | 2215 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 52,997 psi | 88% | 2113 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 52,214 psi | 87% | 2110 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 52,373 psi | 87% | 2192 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 51,982 psi | 86% | 2116 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 52,301 psi | 87% | 2188 fps | 99.3% |
| Somchem S355 | <<locked>> | 98% | 52,315 psi | 87% | 2208 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,234 psi | 67% | 2123 fps | 99% |
| Vihtavuori N130 | <<locked>> | 86% | 52,852 psi | 88% | 2090 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 52,939 psi | 88% | 2106 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 53,534 psi | 89% | 2169 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 51,314 psi | 85% | 2142 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,012 psi | 90% | 2198 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,572 psi | 79% | 2165 fps | 97.6% |
| Vihtavuori N530 | <<locked>> | 88% | 51,808 psi | 86% | 2162 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 52,736 psi | 88% | 2178 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,514 psi | 77% | 2169 fps | 97.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 48,907 psi | 81% | 2162 fps | 99.3% |
| Winchester 748 | <<locked>> | 90% | 54,404 psi | 90% | 2241 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,011 psi | 88% | 2221 fps | 99.7% |
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 2015 | <<locked>> | 80% | 41,742 psi | 69% | 1985 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,875 psi | 75% | 2064 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,127 psi | 57% | 1916 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,234 psi | 67% | 2028 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 32,285 psi | 54% | 1903 fps | 99% |
| Accurate 4350 | <<locked>> | 94% | 36,709 psi | 61% | 2037 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 50,082 psi | 83% | 2047 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,444 psi | 84% | 2064 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,130 psi | 63% | 1988 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 36,709 psi | 61% | 1949 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 50,009 psi | 83% | 2136 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,161 psi | 67% | 2001 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 80% | 39,102 psi | 65% | 2001 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,427 psi | 77% | 2152 fps | 99.1% |
| Alliant Power Pro 2000-MR | 36.9 gr | 84% | 39,088 psi | 65% | 2083 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,604 psi | 53% | 1886 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,949 psi | 78% | 2057 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,098 psi | 57% | 1932 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,014 psi | 63% | 2047 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 86% | 33,040 psi | 55% | 1975 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,689 psi | 81% | 2047 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,883 psi | 61% | 1985 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 30,864 psi | 51% | 1883 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,221 psi | 70% | 1998 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,927 psi | 63% | 2008 fps | 98.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,858 psi | 70% | 2116 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 80% | 45,847 psi | 76% | 2083 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,456 psi | 77% | 2103 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 38,667 psi | 64% | 2011 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 38,392 psi | 64% | 1998 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,474 psi | 54% | 1919 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,374 psi | 57% | 1969 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,773 psi | 43% | 1158 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,014 psi | 61% | 1962 fps | 97.1% |
| IMR 3031 | <<locked>> | 80% | 37,405 psi | 62% | 2001 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,026 psi | 57% | 1893 fps | 95% |
| IMR 4166 Enduron | <<locked>> | 90% | 50,009 psi | 83% | 2119 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 47,819 psi | 79% | 2028 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 37,942 psi | 63% | 2041 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 34,838 psi | 58% | 1955 fps | 96% |
| IMR 8208 XBR | <<locked>> | 80% | 40,161 psi | 67% | 2001 fps | 98.5% |
| Lovex D073.5 | <<locked>> | 80% | 44,773 psi | 74% | 2067 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 36,419 psi | 61% | 1975 fps | 99.1% |
| Lovex S060 | <<locked>> | 80% | 38,914 psi | 65% | 1946 fps | 97.1% |
| Lovex S062 | <<locked>> | 80% | 33,794 psi | 56% | 1903 fps | 97.1% |
| Lovex S065 | <<locked>> | 96% | 44,773 psi | 74% | 2087 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 37,492 psi | 62% | 1955 fps | 98% |
| Norma 202 | <<locked>> | 80% | 37,565 psi | 62% | 1969 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 33,460 psi | 56% | 1923 fps | 95.4% |
| Norma URP | <<locked>> | 94% | 37,420 psi | 62% | 2034 fps | 95% |
| Ramshot Big Game | <<locked>> | 82% | 34,998 psi | 58% | 1972 fps | 95.6% |
| Ramshot TAC | <<locked>> | 82% | 42,699 psi | 71% | 2041 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,131 psi | 65% | 2014 fps | 97.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,323 psi | 72% | 2037 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,976 psi | 43% | 1184 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,860 psi | 75% | 2067 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 47,964 psi | 80% | 2129 fps | 95.6% |
| ReloadSwiss RS 52 | 34.1 gr | 80% | 35,070 psi | 58% | 2001 fps | 95.2% |
| ReloadSwiss RS 60 | 34.6 gr | 80% | 29,080 psi | 48% | 1890 fps | 96.1% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 39,320 psi | 65% | 2096 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 43,323 psi | 72% | 2152 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 41,089 psi | 68% | 1991 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 35,592 psi | 59% | 1916 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 31,053 psi | 52% | 1883 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 44,773 psi | 74% | 2087 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,419 psi | 61% | 1975 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 33,794 psi | 56% | 1903 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,355 psi | 79% | 2080 fps | 99.3% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,401 psi | 84% | 2146 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,360 psi | 57% | 1962 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,819 psi | 79% | 2070 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,553 psi | 67% | 2018 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,709 psi | 61% | 1965 fps | 96.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,117 psi | 65% | 1929 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,082 psi | 53% | 1824 fps | 99.3% |
| Somchem S321 | <<locked>> | 80% | 42,801 psi | 71% | 2060 fps | 99.2% |
| Somchem S335 | <<locked>> | 80% | 38,624 psi | 64% | 1936 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 37,536 psi | 62% | 1975 fps | 96.6% |
| Somchem S355 | <<locked>> | 82% | 32,140 psi | 53% | 1890 fps | 95.5% |
| Somchem S365 | <<locked>> | 90% | 29,559 psi | 49% | 1909 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 44,382 psi | 74% | 1985 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,204 psi | 65% | 1932 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,534 psi | 57% | 1913 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,273 psi | 59% | 1916 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 28,413 psi | 47% | 1801 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 94% | 39,552 psi | 66% | 2044 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 40,132 psi | 67% | 1998 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 80% | 33,895 psi | 56% | 1906 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 94% | 38,479 psi | 64% | 2041 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,243 psi | 55% | 1906 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 38,754 psi | 64% | 2028 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,737 psi | 59% | 1965 fps | 96.8% |
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 92 powders for .307 Win. loaded with the .308 | 220gr | Winchester Silvertip. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,326 fps; across all powders the maximum-charge window runs from 1,299 fps to 2,326 fps. Accurate 4350 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 2000-MR, ReloadSwiss RS 52, ReloadSwiss RS 60 rank at the top here: for .307 Win. with the .308 | 220gr | Winchester Silvertip 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.