Load data for .308 Marlin Express + .308 | 159gr | Hasler Bull

.308 Marlin Express cartridge drawing
Hasler logo

Load Specifications

Bullet Manufacturer:Hasler
Bullet Weight:159 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:1:12.0

Load data in caliber .308 Marlin Express with .308 | 159gr | Hasler Bull bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, IMR 3031 and Hodgdon H322.

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>>94%41,568 psi87%2402 fps99.6%
Accurate 2460<<locked>>92%42,801 psi89%2444 fps97.9%
Accurate 2495ᴾ<<locked>>100%38,101 psi80%2418 fps99.5%
Accurate 2520<<locked>>96%42,714 psi89%2480 fps97.5%
Accurate 4064ᴾ<<locked>>100%35,520 psi74%2385 fps97.1%
Accurate LT-30<<locked>>86%43,018 psi90%2336 fps99%
Accurate LT-32<<locked>>84%40,944 psi86%2300 fps96.9%
ADI AR 2207<<locked>>84%42,337 psi88%2379 fps100%
ADI AR 2219<<locked>>88%43,076 psi90%2461 fps98.9%
Alliant AR-Comp<<locked>>96%40,988 psi86%2470 fps100%
Alliant Reloder-10x<<locked>>90%42,685 psi89%2428 fps100%
Alliant Reloder-7<<locked>>82%41,118 psi86%2343 fps100%
Baschieri & Pellagri 106<<locked>>86%41,075 psi86%2329 fps98.9%
Hodgdon Benchmark<<locked>>92%41,959 psi88%2375 fps96%
Hodgdon BL-C2<<locked>>96%40,799 psi85%2464 fps95.8%
Hodgdon H322<<locked>>90%41,568 psi87%2438 fps98.7%
Hodgdon H335<<locked>>90%42,148 psi88%2454 fps98%
Hodgdon H4198<<locked>>82%42,119 psi88%2333 fps98.4%
Hodgdon TrailBossᴾ<<locked>>100%32,111 psi67%1503 fps100%
IMR 3031<<locked>>98%41,568 psi87%2497 fps99.3%
IMR 4198<<locked>>88%42,308 psi88%2375 fps100%
Lovex D073.4<<locked>>84%40,640 psi85%2405 fps96.8%
Lovex D073.5<<locked>>92%42,844 psi90%2441 fps96.7%
Lovex D073.6ᴾ<<locked>>100%43,308 psi90%2503 fps97.7%
Norma 200<<locked>>86%42,482 psi89%2408 fps100%
Norma 202<<locked>>98%42,264 psi88%2454 fps98.1%
ReloadSwiss RS 14ᴾ<<locked>>100%31,778 psi66%1535 fps100%
ReloadSwiss RS 40<<locked>>90%41,379 psi86%2411 fps96.8%
Rottweil R 901<<locked>>94%40,973 psi86%2398 fps97.5%
Shooters World AR Plus<<locked>>84%40,640 psi85%2405 fps96.8%
Shooters World Match Rifleᴾ<<locked>>100%43,308 psi90%2503 fps97.7%
SNPE Vectan BA6 1/2<<locked>>82%43,105 psi90%2156 fps100%
SNPE Vectan SP 10<<locked>>86%40,698 psi85%2418 fps97.6%
SNPE Vectan SP 3<<locked>>88%41,176 psi86%2395 fps99.2%
SNPE Vectan Tubal 3000<<locked>>94%40,901 psi85%2339 fps97.6%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%39,392 psi82%2329 fps98.2%
Somchem S335<<locked>>96%41,655 psi87%2379 fps98.5%
Vihtavuori N120<<locked>>84%42,511 psi89%2339 fps100%
Vihtavuori N130<<locked>>90%41,046 psi86%2346 fps99.9%
Vihtavuori N133<<locked>>96%42,859 psi90%2388 fps99.7%
Vihtavuori N135ᴾ<<locked>>100%40,161 psi84%2431 fps99.7%
Vihtavuori N140ᴾ<<locked>>100%42,946 psi90%2441 fps98.4%
Vihtavuori N540ᴾ<<locked>>100%41,292 psi86%2431 fps97.6%
Winchester 748<<locked>>96%42,163 psi88%2480 fps96.3%

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%26,672 psi56%2096 fps96.2%
Accurate 2460<<locked>>84%32,489 psi68%2247 fps95.1%
Accurate 2495<<locked>>86%23,395 psi49%2090 fps95.3%
Accurate 2520<<locked>>90%34,621 psi72%2333 fps95.4%
Accurate 4064<<locked>>96%30,966 psi65%2290 fps95.6%
Accurate LT-30<<locked>>80%35,868 psi75%2208 fps97.6%
Accurate LT-32<<locked>>80%36,260 psi76%2211 fps95.6%
ADI AR 2207<<locked>>80%37,246 psi78%2293 fps100%
ADI AR 2219<<locked>>80%32,735 psi68%2260 fps96.5%
Alliant AR-Comp28.6 gr80%24,627 psi51%2103 fps97.8%
Alliant Reloder-10x<<locked>>80%31,053 psi65%2208 fps98.7%
Alliant Reloder-7<<locked>>80%38,696 psi81%2300 fps99.9%
Baschieri & Pellagri 106<<locked>>80%33,750 psi71%2195 fps97.3%
Hodgdon Benchmark<<locked>>90%39,595 psi83%2329 fps95.3%
Hodgdon BL-C2<<locked>>94%38,087 psi80%2411 fps95%
Hodgdon H32229.5 gr80%29,979 psi63%2198 fps95.4%
Hodgdon H335<<locked>>82%32,285 psi67%2257 fps95.1%
Hodgdon H4198<<locked>>80%39,639 psi83%2290 fps97.9%
Hodgdon TrailBoss<<locked>>80%23,540 psi49%1339 fps100%
IMR 303130.7 gr86%28,413 psi59%2215 fps95.7%
IMR 4198<<locked>>80%33,228 psi69%2208 fps99.6%
Lovex D073.4<<locked>>80%35,143 psi73%2303 fps95.2%
Lovex D073.5<<locked>>88%37,173 psi78%2343 fps95.1%
Lovex D073.6<<locked>>94%35,085 psi73%2356 fps95.5%
Norma 200<<locked>>80%34,911 psi73%2274 fps99.7%
Norma 202<<locked>>90%32,677 psi68%2274 fps95.4%
ReloadSwiss RS 14<<locked>>80%23,409 psi49%1371 fps100%
ReloadSwiss RS 40<<locked>>86%36,289 psi76%2316 fps95.3%
Rottweil R 901<<locked>>88%34,229 psi72%2267 fps95.7%
Shooters World AR Plus<<locked>>80%35,143 psi73%2303 fps95.2%
Shooters World Match Rifle<<locked>>94%35,085 psi73%2356 fps95.5%
SNPE Vectan BA6 1/2<<locked>>80%40,872 psi85%2126 fps100%
SNPE Vectan SP 10<<locked>>80%33,083 psi69%2267 fps95.4%
SNPE Vectan SP 3<<locked>>80%31,966 psi67%2215 fps97.2%
SNPE Vectan Tubal 3000<<locked>>88%33,895 psi71%2208 fps95.6%
SNPE Vectan Tubal 5000<<locked>>92%30,777 psi64%2159 fps95.7%
Somchem S335<<locked>>86%30,618 psi64%2162 fps95.6%
Vihtavuori N120<<locked>>80%37,449 psi78%2260 fps100%
Vihtavuori N130<<locked>>80%30,110 psi63%2136 fps98.2%
Vihtavuori N133<<locked>>80%26,136 psi55%2051 fps95.6%
Vihtavuori N135<<locked>>84%24,236 psi51%2077 fps95%
Vihtavuori N140<<locked>>90%31,183 psi65%2215 fps95.1%
Vihtavuori N540<<locked>>94%33,968 psi71%2293 fps95.6%
Winchester 748<<locked>>94%39,755 psi83%2434 fps95.6%

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 44 powders for .308 Marlin Express loaded with the .308 | 159gr | Hasler Bull. Lovex D073.6 delivers the highest muzzle velocity at 2,503 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,503 fps. Accurate 2495 gives the best case fill at 100 %, and 44 of the 44 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (330 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 159.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, 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. Alliant AR-Comp, IMR 3031, Hodgdon H322 rank at the top here: for .308 Marlin Express with the .308 | 159gr | Hasler Bull 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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