Load data for .308 Marlin Express + .31 | 200gr | Lapua D166

.308 Marlin Express cartridge drawing
Lapua logo

Load Specifications

Bullet Manufacturer:Lapua
Bullet Weight:200 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):1.91"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:51 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:47,862 psi
Recommended Twist Rate:1:13.0

Load data in caliber .308 Marlin Express with .31 | 200gr | Lapua D166 bullet and 68 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon LEVERevolution and Norma 203B.

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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>86%41,597 psi87%2119 fps100%
Accurate 2460<<locked>>84%41,989 psi88%2159 fps99.6%
Accurate 2495<<locked>>94%42,235 psi88%2192 fps100%
Accurate 2520<<locked>>88%42,337 psi88%2201 fps99.5%
Accurate 4064<<locked>>96%42,366 psi89%2221 fps99.9%
ADI AR 2206H<<locked>>90%43,018 psi90%2201 fps97.2%
ADI AR 2208<<locked>>94%41,466 psi87%2159 fps96%
ADI Benchmark 8208<<locked>>88%42,989 psi90%2175 fps98.3%
Alliant AR-Comp<<locked>>88%40,799 psi85%2175 fps100%
Alliant Power Pro 1200-R<<locked>>84%43,265 psi90%2247 fps98%
Alliant Reloder- TS 15.5<<locked>>96%41,829 psi87%2211 fps98%
Alliant Reloder-10x<<locked>>82%41,713 psi87%2126 fps100%
Alliant Reloder-15<<locked>>94%43,207 psi90%2228 fps96.8%
Alliant Reloder-17ᴾ<<locked>>100%42,380 psi89%2277 fps97.2%
Bofors RP3<<locked>>96%41,394 psi86%2218 fps98%
Hodgdon Benchmark<<locked>>86%42,743 psi89%2133 fps98.7%
Hodgdon BL-C2<<locked>>90%43,149 psi90%2234 fps98.9%
Hodgdon CFE223<<locked>>86%41,814 psi87%2247 fps96.3%
Hodgdon H322<<locked>>84%43,221 psi90%2188 fps100%
Hodgdon H335<<locked>>82%40,727 psi85%2159 fps99.6%
Hodgdon H4895<<locked>>90%43,236 psi90%2211 fps97.9%
Hodgdon LEVERevolution<<locked>>92%41,394 psi86%2228 fps97.8%
Hodgdon TrailBossᴾ<<locked>>100%33,533 psi70%1345 fps100%
Hodgdon VARGET<<locked>>90%42,003 psi88%2175 fps97.5%
IMR 3031<<locked>>90%41,524 psi87%2215 fps100%
IMR 4064<<locked>>92%40,640 psi85%2139 fps96.1%
IMR 4198<<locked>>82%43,004 psi90%2100 fps100%
IMR 4895<<locked>>92%41,263 psi86%2208 fps97%
IMR 8208 XBR<<locked>>88%42,989 psi90%2175 fps98.3%
Lovex D073.5<<locked>>84%42,047 psi88%2162 fps98.9%
Lovex D073.6<<locked>>90%40,567 psi85%2185 fps99.2%
Lovex S060<<locked>>88%41,974 psi88%2116 fps96.9%
Lovex S062<<locked>>94%42,322 psi88%2185 fps98.3%
Norma 201<<locked>>90%42,148 psi88%2165 fps98.3%
Norma 202<<locked>>90%42,148 psi88%2182 fps99.7%
Norma 203B<<locked>>94%42,308 psi88%2218 fps97.2%
Ramshot Big Game<<locked>>94%42,221 psi88%2228 fps96.7%
Ramshot Wild Boar<<locked>>88%41,611 psi87%2192 fps96.8%
Ramshot X-Terminator<<locked>>84%41,423 psi87%2133 fps96.6%
ReloadSwiss RS 14ᴾ<<locked>>100%33,895 psi71%1381 fps100%
ReloadSwiss RS 40<<locked>>84%42,685 psi89%2169 fps99.2%
ReloadSwiss RS 52<<locked>>92%42,264 psi88%2267 fps96.5%
ReloadSwiss RS 60<<locked>>98%42,438 psi89%2290 fps99.3%
Rottweil R 901<<locked>>86%40,915 psi85%2126 fps99.4%
Rottweil R 902<<locked>>92%42,279 psi88%2162 fps98.3%
Rottweil R 903<<locked>>98%41,292 psi86%2208 fps97.6%
Shooters World Match Rifle<<locked>>90%40,567 psi85%2185 fps99.2%
Shooters World Precision<<locked>>94%42,322 psi88%2185 fps98.3%
Shooters World Tactical Rifle<<locked>>82%42,380 psi89%2133 fps97.9%
SNPE Vectan SP 11<<locked>>96%41,002 psi86%2215 fps96.5%
SNPE Vectan SP 3<<locked>>82%42,482 psi89%2136 fps100%
SNPE Vectan SP 9<<locked>>90%41,495 psi87%2178 fps96.8%
SNPE Vectan Tubal 3000<<locked>>88%42,032 psi88%2100 fps99.6%
SNPE Vectan Tubal 5000<<locked>>94%40,886 psi85%2100 fps99.9%
Somchem S321<<locked>>86%42,873 psi90%2198 fps98.6%
Somchem S335<<locked>>88%41,147 psi86%2106 fps99.9%
Somchem S341<<locked>>90%42,743 psi89%2188 fps96.9%
Somchem S355<<locked>>98%42,699 psi89%2215 fps97.7%
Vihtavuori N130<<locked>>84%42,221 psi88%2090 fps100%
Vihtavuori N133<<locked>>88%41,771 psi87%2100 fps100%
Vihtavuori N135<<locked>>94%43,221 psi90%2192 fps100%
Vihtavuori N140<<locked>>92%42,308 psi88%2165 fps99.8%
Vihtavuori N150<<locked>>98%41,031 psi86%2165 fps98.5%
Vihtavuori N530<<locked>>88%42,830 psi89%2172 fps98.4%
Vihtavuori N540<<locked>>94%43,163 psi90%2195 fps99.7%
Winchester 6.5 StaBALLᴾ<<locked>>100%40,335 psi84%2146 fps96.5%
Winchester 748<<locked>>88%41,249 psi86%2205 fps98.8%
Winchester StaBALL Match<<locked>>92%43,207 psi90%2224 fps97.8%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%34,287 psi72%2005 fps99.9%
Accurate 2460<<locked>>80%36,869 psi77%2077 fps98.9%
Accurate 2495<<locked>>80%26,890 psi56%1923 fps99.1%
Accurate 2520<<locked>>80%32,271 psi67%2028 fps97.6%
Accurate 4064<<locked>>80%25,527 psi53%1900 fps96.4%
ADI AR 2206H<<locked>>84%35,766 psi75%2077 fps95.2%
ADI AR 2208<<locked>>92%38,812 psi81%2113 fps95.2%
ADI Benchmark 8208<<locked>>80%33,402 psi70%2008 fps95.9%
Alliant AR-Comp<<locked>>80%31,691 psi66%2028 fps100%
Alliant Power Pro 1200-R<<locked>>80%37,913 psi79%2156 fps96.8%
Alliant Reloder- TS 15.5<<locked>>88%32,663 psi68%2047 fps95.4%
Alliant Reloder-10x<<locked>>80%39,204 psi82%2087 fps100%
Alliant Reloder-15<<locked>>90%38,029 psi79%2142 fps95.4%
Alliant Reloder-17<<locked>>96%37,478 psi78%2188 fps95.7%
Bofors RP3<<locked>>88%31,705 psi66%2044 fps95.2%
Hodgdon Benchmark<<locked>>80%35,897 psi75%2014 fps97.3%
Hodgdon BL-C2<<locked>>80%30,647 psi64%2008 fps95.7%
Hodgdon CFE223<<locked>>84%39,175 psi82%2201 fps95.5%
Hodgdon H322<<locked>>80%37,869 psi79%2103 fps99.7%
Hodgdon H335<<locked>>80%38,072 psi80%2116 fps99.2%
Hodgdon H4895<<locked>>82%33,837 psi71%2047 fps95.3%
Hodgdon LEVERevolution33.1 gr86%34,011 psi71%2090 fps95.7%
Hodgdon TrailBoss<<locked>>80%24,787 psi52%1198 fps100%
Hodgdon VARGET<<locked>>84%34,940 psi73%2051 fps95.5%
IMR 3031<<locked>>80%30,139 psi63%2011 fps99.1%
IMR 4064<<locked>>90%38,319 psi80%2100 fps95.4%
IMR 4198<<locked>>80%40,770 psi85%2070 fps100%
IMR 4895<<locked>>88%36,593 psi76%2126 fps95.7%
IMR 8208 XBR<<locked>>80%33,402 psi70%2008 fps95.9%
Lovex D073.5<<locked>>80%36,709 psi77%2077 fps97.9%
Lovex D073.6<<locked>>80%28,993 psi61%1972 fps96.4%
Lovex S060<<locked>>84%37,376 psi78%2041 fps95.6%
Lovex S062<<locked>>84%31,430 psi66%1988 fps95.4%
Norma 201<<locked>>80%31,067 psi65%1962 fps95.2%
Norma 202<<locked>>80%30,632 psi64%1975 fps97.7%
Norma 203B32.5 gr88%35,099 psi73%2090 fps95.1%
Ramshot Big Game<<locked>>90%37,347 psi78%2142 fps95.2%
Ramshot Wild Boar<<locked>>84%36,448 psi76%2100 fps95.3%
Ramshot X-Terminator<<locked>>80%36,361 psi76%2044 fps95.1%
ReloadSwiss RS 14<<locked>>80%24,874 psi52%1227 fps100%
ReloadSwiss RS 40<<locked>>80%37,565 psi78%2083 fps98.4%
ReloadSwiss RS 52<<locked>>90%39,436 psi82%2218 fps95.7%
ReloadSwiss RS 6034.1 gr88%31,096 psi65%2060 fps95.8%
Rottweil R 901<<locked>>80%34,316 psi72%2011 fps98.3%
Rottweil R 902<<locked>>82%31,415 psi66%1965 fps95.3%
Rottweil R 903<<locked>>92%33,939 psi71%2080 fps95.6%
Shooters World Match Rifle<<locked>>80%28,993 psi61%1972 fps96.4%
Shooters World Precision<<locked>>84%31,430 psi66%1988 fps95.4%
Shooters World Tactical Rifle<<locked>>80%39,610 psi83%2090 fps97.2%
SNPE Vectan SP 11<<locked>>92%36,289 psi76%2129 fps95%
SNPE Vectan SP 3<<locked>>80%39,943 psi83%2100 fps100%
SNPE Vectan SP 9<<locked>>86%36,608 psi76%2093 fps95.4%
SNPE Vectan Tubal 3000<<locked>>80%32,895 psi69%1946 fps98.1%
SNPE Vectan Tubal 5000<<locked>>80%26,629 psi56%1837 fps97.2%
Somchem S321<<locked>>80%35,360 psi74%2070 fps96.9%
Somchem S335<<locked>>80%32,314 psi68%1952 fps98.7%
Somchem S341<<locked>>86%37,420 psi78%2100 fps95.5%
Somchem S355<<locked>>90%33,344 psi70%2051 fps95%
Vihtavuori N130<<locked>>80%37,434 psi78%2018 fps100%
Vihtavuori N133<<locked>>80%32,750 psi68%1952 fps99.7%
Vihtavuori N135<<locked>>80%27,731 psi58%1926 fps99.2%
Vihtavuori N140<<locked>>80%29,022 psi61%1926 fps97.5%
Vihtavuori N150<<locked>>88%29,820 psi62%1959 fps95.3%
Vihtavuori N530<<locked>>80%33,025 psi69%2001 fps95.9%
Vihtavuori N540<<locked>>80%27,891 psi58%1916 fps96.5%
Winchester 6.5 StaBALL<<locked>>98%37,840 psi79%2103 fps95.7%
Winchester 748<<locked>>80%31,778 psi66%2028 fps96.4%
Winchester StaBALL Match<<locked>>84%33,344 psi70%2051 fps95%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 68 powders for .308 Marlin Express loaded with the .31 | 200gr | Lapua D166. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,290 fps; across all powders the maximum-charge window runs from 1,345 fps to 2,290 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 68 of the 68 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 200.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, 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, Hodgdon LEVERevolution, Norma 203B rank at the top here: for .308 Marlin Express with the .31 | 200gr | Lapua D166 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.

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