Load Specifications
Load data in caliber .308 Marlin Express with .308 | 220gr | Sako Hammerhead bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 52 and Alliant Reloder-17.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 42,931 psi | 90% | 2011 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 41,060 psi | 86% | 2018 fps | 99.8% |
| Accurate 2495 | <<locked>> | 92% | 41,350 psi | 86% | 2051 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 41,437 psi | 87% | 2060 fps | 99.7% |
| Accurate 4064 | <<locked>> | 94% | 41,321 psi | 86% | 2077 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 41,814 psi | 87% | 2060 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 94% | 42,931 psi | 90% | 2057 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 41,597 psi | 87% | 2031 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 88% | 42,467 psi | 89% | 2064 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 42,047 psi | 88% | 2100 fps | 98.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 40,741 psi | 85% | 2116 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 41,118 psi | 86% | 2073 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 92% | 41,959 psi | 88% | 2083 fps | 97.3% |
| Alliant Reloder-17 | <<locked>> | 98% | 41,089 psi | 86% | 2136 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 40,988 psi | 86% | 2064 fps | 96.3% |
| Bofors RP3 | <<locked>> | 96% | 43,134 psi | 90% | 2116 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 41,756 psi | 87% | 1995 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 88% | 41,727 psi | 87% | 2087 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 86% | 43,178 psi | 90% | 2142 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 82% | 41,916 psi | 88% | 2041 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 42,409 psi | 89% | 2057 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 94% | 42,177 psi | 88% | 2077 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 88% | 42,090 psi | 88% | 2070 fps | 98.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 35,041 psi | 73% | 1975 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 42,902 psi | 90% | 2126 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,750 psi | 71% | 1260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 40,770 psi | 85% | 2034 fps | 97.9% |
| IMR 3031 | <<locked>> | 88% | 40,596 psi | 85% | 2070 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 42,366 psi | 89% | 2044 fps | 97.3% |
| IMR 4895 | <<locked>> | 92% | 42,888 psi | 90% | 2110 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 86% | 41,597 psi | 87% | 2031 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 82% | 40,611 psi | 85% | 2018 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 90% | 42,351 psi | 88% | 2083 fps | 99.8% |
| Lovex S060 | <<locked>> | 88% | 43,279 psi | 90% | 2014 fps | 97.9% |
| Lovex S062 | <<locked>> | 92% | 41,278 psi | 86% | 2044 fps | 98.7% |
| Norma 201 | <<locked>> | 88% | 40,843 psi | 85% | 2021 fps | 98.6% |
| Norma 202 | <<locked>> | 88% | 40,901 psi | 85% | 2034 fps | 99.9% |
| Norma 203B | <<locked>> | 92% | 41,133 psi | 86% | 2073 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 92% | 41,031 psi | 86% | 2087 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 42,989 psi | 90% | 2087 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 42,699 psi | 89% | 2031 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,200 psi | 71% | 1296 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 41,495 psi | 87% | 2024 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 41,104 psi | 86% | 2123 fps | 97.1% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 41,379 psi | 86% | 2149 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 86% | 42,467 psi | 89% | 2024 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 90% | 41,350 psi | 86% | 2024 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 98% | 43,033 psi | 90% | 2106 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 90% | 42,351 psi | 88% | 2083 fps | 99.8% |
| Shooters World Precision | <<locked>> | 92% | 41,278 psi | 86% | 2044 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 42,279 psi | 88% | 2113 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 43,120 psi | 90% | 2080 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 43,236 psi | 90% | 1991 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 42,163 psi | 88% | 1995 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 41,901 psi | 88% | 2057 fps | 99% |
| Somchem S335 | <<locked>> | 88% | 42,250 psi | 88% | 1998 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 41,698 psi | 87% | 2051 fps | 97.5% |
| Somchem S355 | <<locked>> | 96% | 41,626 psi | 87% | 2073 fps | 98.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 33,576 psi | 70% | 2008 fps | 97.1% |
| Vihtavuori N130 | <<locked>> | 82% | 40,915 psi | 85% | 1946 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 43,047 psi | 90% | 1991 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 42,380 psi | 89% | 2047 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 41,263 psi | 86% | 2024 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 98% | 42,670 psi | 89% | 2064 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 86% | 41,510 psi | 87% | 2028 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 92% | 42,061 psi | 88% | 2054 fps | 99.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 41,655 psi | 87% | 2051 fps | 97.7% |
| Winchester 748 | <<locked>> | 88% | 42,902 psi | 90% | 2103 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 90% | 41,785 psi | 87% | 2080 fps | 98.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 35,737 psi | 75% | 1906 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 38,232 psi | 80% | 1975 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 28,108 psi | 59% | 1834 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 33,576 psi | 70% | 1936 fps | 98.6% |
| Accurate 4064 | <<locked>> | 80% | 26,672 psi | 56% | 1818 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 80% | 32,677 psi | 68% | 1900 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 88% | 35,737 psi | 75% | 1942 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,577 psi | 72% | 1916 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 80% | 32,851 psi | 69% | 1926 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 39,378 psi | 82% | 2057 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 38,014 psi | 79% | 2067 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 30,037 psi | 63% | 1877 fps | 95.3% |
| Alliant Reloder-15 | <<locked>> | 86% | 34,824 psi | 73% | 1962 fps | 95.2% |
| Alliant Reloder-17 | 33.9 gr | 92% | 34,026 psi | 71% | 2005 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 38,276 psi | 80% | 2018 fps | 95.5% |
| Bofors RP3 | <<locked>> | 84% | 29,008 psi | 61% | 1873 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,014 psi | 77% | 1919 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 31,865 psi | 67% | 1919 fps | 97.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 35,331 psi | 74% | 2008 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 39,305 psi | 82% | 2001 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 39,494 psi | 83% | 2014 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 39,566 psi | 83% | 2037 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 32,808 psi | 69% | 1909 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 32,982 psi | 69% | 1936 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 31,169 psi | 65% | 1919 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,222 psi | 53% | 1129 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 31,821 psi | 66% | 1877 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 31,502 psi | 66% | 1919 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 35,143 psi | 73% | 1926 fps | 95.3% |
| IMR 4895 | <<locked>> | 84% | 33,388 psi | 70% | 1949 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 34,577 psi | 72% | 1916 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 80% | 38,189 psi | 80% | 1982 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 30,443 psi | 64% | 1886 fps | 97.8% |
| Lovex S060 | <<locked>> | 80% | 33,953 psi | 71% | 1860 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 28,631 psi | 60% | 1818 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 32,111 psi | 67% | 1870 fps | 96.5% |
| Norma 202 | <<locked>> | 80% | 32,010 psi | 67% | 1886 fps | 98.7% |
| Norma 203B | <<locked>> | 86% | 34,142 psi | 71% | 1955 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 86% | 34,026 psi | 71% | 1962 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 33,098 psi | 69% | 1919 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 37,579 psi | 79% | 1949 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,396 psi | 53% | 1158 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,001 psi | 81% | 1988 fps | 99.2% |
| ReloadSwiss RS 52 | 31.2 gr | 86% | 35,911 psi | 75% | 2034 fps | 95.5% |
| ReloadSwiss RS 60 | 31 gr | 84% | 28,413 psi | 59% | 1886 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 35,621 psi | 74% | 1916 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 30,560 psi | 64% | 1834 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 88% | 31,154 psi | 65% | 1909 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,443 psi | 64% | 1886 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 28,631 psi | 60% | 1818 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 35,331 psi | 74% | 1995 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 33,489 psi | 70% | 1919 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,069 psi | 71% | 1854 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,615 psi | 58% | 1752 fps | 98.3% |
| Somchem S321 | <<locked>> | 80% | 36,390 psi | 76% | 1972 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 33,388 psi | 70% | 1857 fps | 99.4% |
| Somchem S341 | <<locked>> | 82% | 34,084 psi | 71% | 1923 fps | 95.3% |
| Somchem S355 | <<locked>> | 86% | 30,705 psi | 64% | 1883 fps | 95% |
| Somchem S365 | <<locked>> | 96% | 29,776 psi | 62% | 1926 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 38,783 psi | 81% | 1916 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,982 psi | 71% | 1857 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 29,022 psi | 61% | 1837 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 30,066 psi | 63% | 1837 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 84% | 27,398 psi | 57% | 1798 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 34,272 psi | 72% | 1909 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 80% | 28,776 psi | 60% | 1827 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 34,316 psi | 72% | 1929 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 32,851 psi | 69% | 1936 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 82% | 32,387 psi | 68% | 1916 fps | 95.7% |
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 69 powders for .308 Marlin Express loaded with the .308 | 220gr | Sako Hammerhead. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,149 fps; across all powders the maximum-charge window runs from 1,260 fps to 2,149 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 69 of the 69 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, ReloadSwiss RS 14 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. ReloadSwiss RS 60, ReloadSwiss RS 52, Alliant Reloder-17 rank at the top here: for .308 Marlin Express with the .308 | 220gr | Sako Hammerhead 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.