Load data for .30 BR + .308 | 185gr | Lapua Mega

.30 BR cartridge drawing
Lapua logo

Load Specifications

Bullet Manufacturer:Lapua
Bullet Weight:185 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):1.501"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:41 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:15.5

Load data in caliber .30 BR with .308 | 185gr | Lapua Mega bullet and 64 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, Winchester StaBALL Match and Hodgdon H335.

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 1680<<locked>>86%50,836 psi87%2185 fps100%
Accurate 2015ᴾ<<locked>>100%50,473 psi86%2257 fps100%
Accurate 2200<<locked>>92%53,142 psi90%2316 fps95.8%
Accurate 2460<<locked>>98%52,199 psi89%2306 fps99.4%
Accurate 2495ᴾ<<locked>>100%38,000 psi65%2162 fps99.7%
Accurate 2520ᴾ<<locked>>100%46,311 psi79%2280 fps98.5%
Accurate 2520ᴾ<<locked>>100%46,311 psi79%2280 fps98.5%
Accurate 4064ᴾ<<locked>>100%35,447 psi60%2136 fps97.6%
Accurate LT-30<<locked>>92%51,256 psi87%2192 fps99.9%
Accurate LT-32<<locked>>92%51,793 psi88%2201 fps99.1%
ADI AR 2207<<locked>>90%50,865 psi87%2221 fps100%
ADI AR 2219<<locked>>94%52,257 psi89%2320 fps99.9%
ADI Benchmark 8208ᴾ<<locked>>100%49,429 psi84%2270 fps97.4%
Alliant AR-Compᴾ<<locked>>100%46,441 psi79%2277 fps100%
Alliant Power Pro 1200-R<<locked>>98%53,055 psi90%2395 fps97.7%
Alliant Reloder-10x<<locked>>96%51,401 psi88%2277 fps100%
Alliant Reloder-7<<locked>>90%53,011 psi90%2238 fps100%
Baschieri & Pellagri 106<<locked>>94%52,779 psi90%2231 fps100%
Hodgdon Benchmark<<locked>>98%49,908 psi85%2231 fps98%
Hodgdon BL-C2ᴾ<<locked>>100%46,543 psi79%2290 fps97.6%
Hodgdon CFE223ᴾ<<locked>>100%52,866 psi90%2398 fps95.9%
Hodgdon H322ᴾ<<locked>>100%52,257 psi89%2320 fps99.9%
Hodgdon H335<<locked>>94%51,184 psi87%2316 fps99.5%
Hodgdon H4198<<locked>>92%52,924 psi90%2224 fps99.8%
Hodgdon H4895ᴾ<<locked>>100%46,427 psi79%2264 fps96.2%
Hodgdon TrailBossᴾ<<locked>>100%32,111 psi55%1319 fps100%
IMR 3031ᴾ<<locked>>100%40,030 psi68%2208 fps99.4%
IMR 4198<<locked>>96%52,678 psi90%2244 fps100%
IMR 4227<<locked>>84%50,546 psi86%2152 fps100%
IMR 8208 XBRᴾ<<locked>>100%49,429 psi84%2270 fps97.4%
Lovex D073.4<<locked>>90%50,096 psi85%2280 fps98.8%
Lovex D073.5<<locked>>98%52,837 psi90%2313 fps98.7%
Lovex D073.6ᴾ<<locked>>100%43,047 psi73%2238 fps98%
Lovex S053<<locked>>86%52,243 psi89%2142 fps100%
Lovex S060ᴾ<<locked>>100%49,008 psi83%2211 fps95.8%
Norma 200<<locked>>92%51,619 psi88%2260 fps100%
Norma 201ᴾ<<locked>>100%45,034 psi77%2215 fps96.7%
Norma 202ᴾ<<locked>>100%44,846 psi76%2234 fps98.8%
Ramshot Wild Boarᴾ<<locked>>100%48,704 psi83%2290 fps95.7%
Ramshot X-Terminator<<locked>>98%52,286 psi89%2280 fps96.3%
ReloadSwiss RS 14ᴾ<<locked>>100%31,966 psi54%1348 fps100%
ReloadSwiss RS 36<<locked>>84%50,546 psi86%2188 fps100%
ReloadSwiss RS 40<<locked>>96%50,198 psi85%2280 fps98.7%
Rottweil R 901ᴾ<<locked>>100%49,603 psi84%2264 fps99.2%
Rottweil R 902ᴾ<<locked>>100%42,598 psi73%2169 fps96%
Shooters World AR Plus<<locked>>90%50,096 psi85%2280 fps98.8%
Shooters World Match Rifleᴾ<<locked>>100%43,047 psi73%2238 fps98%
Shooters World Tactical Rifle<<locked>>94%51,300 psi87%2251 fps97.2%
SNPE Vectan BA6 1/2<<locked>>88%50,662 psi86%1995 fps100%
SNPE Vectan SP 10<<locked>>94%52,852 psi90%2329 fps99.6%
SNPE Vectan SP 3<<locked>>96%52,272 psi89%2280 fps100%
SNPE Vectan Tubal 3000ᴾ<<locked>>100%48,892 psi83%2195 fps99.1%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%39,117 psi67%2077 fps98.5%
Somchem S321<<locked>>98%50,763 psi86%2313 fps98%
Somchem S335ᴾ<<locked>>100%46,833 psi80%2195 fps99.5%
Vihtavuori N120<<locked>>90%50,952 psi87%2178 fps100%
Vihtavuori N130<<locked>>98%51,822 psi88%2231 fps100%
Vihtavuori N133ᴾ<<locked>>100%47,921 psi82%2198 fps100%
Vihtavuori N135ᴾ<<locked>>100%39,827 psi68%2169 fps99.8%
Vihtavuori N140ᴾ<<locked>>100%42,627 psi73%2178 fps98.7%
Vihtavuori N530ᴾ<<locked>>100%50,401 psi86%2277 fps97.6%
Vihtavuori N540ᴾ<<locked>>100%40,930 psi70%2172 fps97.9%
Winchester 748ᴾ<<locked>>100%52,417 psi89%2362 fps98.7%
Winchester StaBALL Match<<locked>>96%49,922 psi85%2313 fps96.7%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%41,727 psi71%2067 fps100%
Accurate 2015<<locked>>80%27,064 psi46%1877 fps97%
Accurate 2200<<locked>>90%49,980 psi85%2274 fps95.1%
Accurate 2460<<locked>>84%32,793 psi56%2014 fps95.8%
Accurate 2495<<locked>>84%22,553 psi38%1847 fps95.6%
Accurate 2520<<locked>>90%32,924 psi56%2067 fps95.3%
Accurate 2520<<locked>>90%32,924 psi56%2067 fps95.3%
Accurate 4064<<locked>>94%29,457 psi50%2018 fps95.7%
Accurate LT-30<<locked>>80%35,984 psi61%1969 fps98%
Accurate LT-32<<locked>>80%36,390 psi62%1972 fps96.2%
ADI AR 2207<<locked>>80%37,724 psi64%2047 fps100%
ADI AR 2219<<locked>>80%32,909 psi56%2021 fps97.1%
ADI Benchmark 8208<<locked>>94%41,104 psi70%2149 fps95.6%
Alliant AR-Comp<<locked>>80%25,034 psi43%1890 fps98.5%
Alliant Power Pro 1200-R28.4 gr90%41,104 psi70%2221 fps95.1%
Alliant Reloder-10x<<locked>>80%31,488 psi54%1975 fps99.1%
Alliant Reloder-7<<locked>>80%39,015 psi66%2051 fps100%
Baschieri & Pellagri 106<<locked>>80%33,808 psi58%1959 fps97.8%
Hodgdon Benchmark<<locked>>88%37,159 psi63%2041 fps95.1%
Hodgdon BL-C2<<locked>>94%38,130 psi65%2159 fps95.6%
Hodgdon CFE223<<locked>>98%49,414 psi84%2352 fps95.1%
Hodgdon H322<<locked>>80%28,311 psi48%1923 fps95.3%
Hodgdon H33527.5 gr80%32,082 psi55%2011 fps95.7%
Hodgdon H4198<<locked>>80%37,362 psi64%1998 fps97.8%
Hodgdon H4895<<locked>>98%43,787 psi75%2224 fps95.5%
Hodgdon TrailBoss<<locked>>80%23,757 psi40%1178 fps100%
IMR 3031<<locked>>86%26,281 psi45%1923 fps95.3%
IMR 4198<<locked>>80%33,460 psi57%1969 fps99.8%
IMR 4227<<locked>>80%45,092 psi77%2087 fps100%
IMR 8208 XBR<<locked>>94%41,104 psi70%2149 fps95.6%
Lovex D073.4<<locked>>80%35,244 psi60%2057 fps95.8%
Lovex D073.5<<locked>>88%37,434 psi64%2096 fps95.7%
Lovex D073.6<<locked>>92%32,924 psi56%2067 fps95.3%
Lovex S053<<locked>>80%44,077 psi75%2047 fps100%
Lovex S060<<locked>>98%46,282 psi79%2175 fps95.2%
Norma 200<<locked>>80%35,650 psi61%2037 fps99.9%
Norma 201<<locked>>96%39,972 psi68%2136 fps95.4%
Norma 202<<locked>>88%30,995 psi53%1998 fps95.4%
Ramshot Wild Boar<<locked>>98%45,469 psi77%2244 fps95%
Ramshot X-Terminator<<locked>>96%48,892 psi83%2238 fps95.6%
ReloadSwiss RS 14<<locked>>80%23,772 psi40%1207 fps100%
ReloadSwiss RS 36<<locked>>80%44,425 psi76%2113 fps100%
ReloadSwiss RS 40<<locked>>84%34,156 psi58%2031 fps95.2%
Rottweil R 901<<locked>>84%31,082 psi53%1959 fps95.1%
Rottweil R 902<<locked>>98%40,190 psi68%2133 fps95.4%
Shooters World AR Plus<<locked>>80%35,244 psi60%2057 fps95.8%
Shooters World Match Rifle<<locked>>92%32,924 psi56%2067 fps95.3%
Shooters World Tactical Rifle<<locked>>88%41,989 psi71%2123 fps95.2%
SNPE Vectan BA6 1/2<<locked>>80%41,031 psi70%1883 fps100%
SNPE Vectan SP 10<<locked>>80%33,373 psi57%2031 fps96.1%
SNPE Vectan SP 3<<locked>>80%32,271 psi55%1978 fps97.8%
SNPE Vectan Tubal 3000<<locked>>86%31,850 psi54%1929 fps95.5%
SNPE Vectan Tubal 5000<<locked>>90%29,037 psi49%1890 fps95.6%
Somchem S321<<locked>>90%38,537 psi66%2133 fps95.3%
Somchem S335<<locked>>84%29,182 psi50%1900 fps95.6%
Vihtavuori N120<<locked>>80%37,913 psi65%2014 fps100%
Vihtavuori N130<<locked>>80%30,530 psi52%1913 fps98.7%
Vihtavuori N133<<locked>>80%26,571 psi45%1837 fps96.4%
Vihtavuori N135<<locked>>82%23,090 psi39%1821 fps95.1%
Vihtavuori N140<<locked>>88%29,443 psi50%1942 fps95%
Vihtavuori N530<<locked>>94%41,466 psi71%2152 fps95.7%
Vihtavuori N540<<locked>>92%31,879 psi54%2011 fps95.4%
Winchester 748<<locked>>90%37,594 psi64%2139 fps95.5%
Winchester StaBALL Match33.1 gr92%43,468 psi74%2221 fps95.2%

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 90 powders for .30 BR loaded with the .308 | 185gr | Lapua Mega. Hodgdon CFE223 delivers the highest muzzle velocity at 2,398 fps; across all powders the maximum-charge window runs from 1,319 fps to 2,398 fps. Accurate 2015 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 185.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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, Winchester StaBALL Match, Hodgdon H335 rank at the top here: for .30 BR with the .308 | 185gr | Lapua Mega they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2208, Alliant Power Pro 2000-MR, Alliant Reloder- TS 15.5 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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