Load data for .308 Marlin Express + .308 | 171gr | Viper Bullets Bush Gold

.308 Marlin Express cartridge drawing
Viper Bullets logo

Load Specifications

Bullet Manufacturer:Viper Bullets
Bullet Weight:171 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:1:15.0

Load data in caliber .308 Marlin Express with .308 | 171gr | Viper Bullets Bush Gold bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon BL-C2, Lovex D073.6 and Shooters World Match Rifle.

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>>90%42,960 psi90%2346 fps100%
Accurate 2460<<locked>>86%41,307 psi86%2349 fps98.6%
Accurate 2495<<locked>>96%40,814 psi85%2382 fps100%
Accurate 2520<<locked>>90%41,452 psi87%2388 fps98.4%
Accurate 4064ᴾ<<locked>>100%43,192 psi90%2444 fps99.4%
Accurate LT-30<<locked>>82%42,975 psi90%2274 fps99.6%
ADI AR 2219<<locked>>82%40,683 psi85%2352 fps99.4%
ADI Benchmark 8208<<locked>>90%42,250 psi88%2362 fps96.8%
Alliant AR-Comp<<locked>>92%42,453 psi89%2415 fps100%
Alliant Power Pro 1200-R<<locked>>86%42,192 psi88%2434 fps96.3%
Alliant Reloder- TS 15.5<<locked>>98%40,959 psi86%2395 fps96.2%
Alliant Reloder-10x<<locked>>84%41,191 psi86%2326 fps100%
Baschieri & Pellagri 106<<locked>>82%41,162 psi86%2267 fps99.6%
Bofors RP3ᴾ<<locked>>100%42,902 psi90%2441 fps96.8%
Hodgdon Benchmark<<locked>>88%42,511 psi89%2323 fps97.4%
Hodgdon BL-C2<<locked>>92%42,105 psi88%2421 fps97.5%
Hodgdon H322<<locked>>86%42,424 psi89%2382 fps99.6%
Hodgdon H335<<locked>>86%42,975 psi90%2398 fps99.1%
Hodgdon H4895<<locked>>92%42,206 psi88%2395 fps96.1%
Hodgdon LEVERevolution<<locked>>96%43,236 psi90%2454 fps96.7%
Hodgdon TrailBossᴾ<<locked>>100%33,025 psi69%1473 fps100%
IMR 3031<<locked>>94%43,033 psi90%2451 fps99.9%
IMR 4198<<locked>>84%42,351 psi88%2300 fps100%
IMR 4895<<locked>>96%42,960 psi90%2438 fps95.8%
IMR 8208 XBR<<locked>>90%42,250 psi88%2362 fps96.8%
Lovex D073.5<<locked>>86%40,930 psi86%2343 fps97.5%
Lovex D073.6<<locked>>94%42,003 psi88%2411 fps98.5%
Lovex S062<<locked>>96%41,452 psi87%2369 fps96.8%
Norma 201<<locked>>92%41,336 psi86%2349 fps96.7%
Norma 202<<locked>>92%41,191 psi86%2369 fps98.8%
ReloadSwiss RS 14ᴾ<<locked>>100%33,199 psi69%1512 fps100%
ReloadSwiss RS 40<<locked>>86%42,192 psi88%2359 fps98.1%
ReloadSwiss RS 60ᴾ<<locked>>100%41,974 psi88%2470 fps97.7%
Rottweil R 901<<locked>>90%42,583 psi89%2352 fps98.8%
Rottweil R 902<<locked>>94%41,394 psi86%2343 fps96.7%
Shooters World Match Rifle<<locked>>94%42,003 psi88%2411 fps98.5%
Shooters World Precision<<locked>>96%41,452 psi87%2369 fps96.8%
Shooters World Tactical Rifle<<locked>>84%42,206 psi88%2323 fps96.3%
SNPE Vectan SP 10<<locked>>82%41,017 psi86%2356 fps98.7%
SNPE Vectan SP 3<<locked>>84%41,626 psi87%2329 fps99.8%
SNPE Vectan Tubal 3000<<locked>>90%41,539 psi87%2287 fps98.7%
SNPE Vectan Tubal 5000<<locked>>98%42,569 psi89%2320 fps99.5%
Somchem S321<<locked>>88%42,322 psi88%2388 fps97.2%
Somchem S335<<locked>>92%42,917 psi90%2329 fps99.5%
Somchem S355ᴾ<<locked>>100%41,365 psi86%2388 fps95.8%
Vihtavuori N130<<locked>>86%41,684 psi87%2287 fps100%
Vihtavuori N133<<locked>>90%41,176 psi86%2293 fps99.9%
Vihtavuori N135<<locked>>96%41,916 psi88%2382 fps100%
Vihtavuori N140<<locked>>94%41,220 psi86%2346 fps99%
Vihtavuori N150ᴾ<<locked>>100%39,755 psi83%2336 fps96.8%
Vihtavuori N530<<locked>>90%42,018 psi88%2352 fps96.8%
Vihtavuori N540<<locked>>96%42,279 psi88%2382 fps98.8%
Winchester 748<<locked>>92%43,091 psi90%2434 fps97.9%
Winchester StaBALL Match<<locked>>94%42,308 psi88%2405 fps96.1%

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%31,575 psi66%2139 fps98.8%
Accurate 2460<<locked>>80%33,692 psi70%2205 fps96.8%
Accurate 2495<<locked>>80%24,120 psi50%2031 fps96.9%
Accurate 2520<<locked>>82%31,488 psi66%2198 fps95.7%
Accurate 4064<<locked>>86%27,789 psi58%2136 fps95.6%
Accurate LT-30<<locked>>80%40,292 psi84%2228 fps99.3%
ADI AR 2219<<locked>>80%38,058 psi80%2306 fps99%
ADI Benchmark 8208<<locked>>86%37,217 psi78%2270 fps95.4%
Alliant AR-Comp<<locked>>80%28,776 psi60%2152 fps99.8%
Alliant Power Pro 1200-R<<locked>>84%39,494 psi83%2385 fps95.5%
Alliant Reloder- TS 15.5<<locked>>96%38,406 psi80%2346 fps95.5%
Alliant Reloder-10x<<locked>>80%36,318 psi76%2241 fps99.9%
Baschieri & Pellagri 106<<locked>>80%38,435 psi80%2221 fps99.3%
Bofors RP3<<locked>>96%37,405 psi78%2343 fps95.3%
Hodgdon Benchmark<<locked>>82%35,491 psi74%2192 fps95.5%
Hodgdon BL-C235.7 gr86%34,403 psi72%2274 fps95.3%
Hodgdon H322<<locked>>80%34,751 psi73%2241 fps98.3%
Hodgdon H335<<locked>>80%35,099 psi73%2254 fps97.5%
Hodgdon H4895<<locked>>90%39,900 psi83%2352 fps95.4%
Hodgdon LEVERevolution<<locked>>92%37,884 psi79%2352 fps95%
Hodgdon TrailBoss<<locked>>80%24,468 psi51%1316 fps100%
IMR 3031<<locked>>80%27,630 psi58%2129 fps96.9%
IMR 4198<<locked>>80%37,652 psi79%2221 fps100%
IMR 4895<<locked>>94%40,248 psi84%2388 fps95%
IMR 8208 XBR<<locked>>86%37,217 psi78%2270 fps95.4%
Lovex D073.5<<locked>>80%33,359 psi70%2198 fps95.3%
Lovex D073.633.7 gr84%30,037 psi63%2175 fps95.1%
Lovex S062<<locked>>92%36,738 psi77%2280 fps95.4%
Norma 201<<locked>>88%36,318 psi76%2254 fps95.2%
Norma 202<<locked>>80%28,224 psi59%2100 fps95.1%
ReloadSwiss RS 14<<locked>>80%24,453 psi51%1348 fps100%
ReloadSwiss RS 40<<locked>>80%34,737 psi73%2221 fps96.2%
ReloadSwiss RS 60<<locked>>96%36,738 psi77%2359 fps95.9%
Rottweil R 901<<locked>>80%31,734 psi66%2139 fps96.1%
Rottweil R 902<<locked>>90%36,695 psi77%2254 fps95.3%
Shooters World Match Rifle33.7 gr84%30,037 psi63%2175 fps95.1%
Shooters World Precision<<locked>>92%36,738 psi77%2280 fps95.4%
Shooters World Tactical Rifle<<locked>>82%39,233 psi82%2270 fps95.5%
SNPE Vectan SP 10<<locked>>80%38,479 psi80%2310 fps98.2%
SNPE Vectan SP 3<<locked>>80%36,941 psi77%2247 fps99.3%
SNPE Vectan Tubal 3000<<locked>>80%30,560 psi64%2073 fps95.9%
SNPE Vectan Tubal 5000<<locked>>82%26,223 psi55%1991 fps95.2%
Somchem S321<<locked>>84%36,970 psi77%2290 fps95.7%
Somchem S335<<locked>>80%29,791 psi62%2077 fps96.6%
Somchem S355<<locked>>98%38,711 psi81%2339 fps95%
Vihtavuori N130<<locked>>80%34,809 psi73%2165 fps99.7%
Vihtavuori N133<<locked>>80%30,313 psi63%2087 fps98.4%
Vihtavuori N135<<locked>>80%25,411 psi53%2044 fps97.1%
Vihtavuori N140<<locked>>82%28,413 psi59%2087 fps95.5%
Vihtavuori N150<<locked>>96%35,143 psi73%2247 fps95.4%
Vihtavuori N530<<locked>>86%37,130 psi78%2267 fps95.5%
Vihtavuori N540<<locked>>84%28,906 psi60%2113 fps95.1%
Winchester 748<<locked>>84%33,156 psi69%2241 fps95%
Winchester StaBALL Match<<locked>>92%39,682 psi83%2359 fps95.3%

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 54 powders for .308 Marlin Express loaded with the .308 | 171gr | Viper Bullets Bush Gold. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,470 fps; across all powders the maximum-charge window runs from 1,473 fps to 2,470 fps. Accurate 4064 gives the best case fill at 100 %, and 54 of the 54 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (330 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 171.0 gr projectile in 0.308" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Bofors RP3, Hodgdon TrailBoss 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. Hodgdon BL-C2, Lovex D073.6, Shooters World Match Rifle rank at the top here: for .308 Marlin Express with the .308 | 171gr | Viper Bullets Bush Gold 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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