375rum

Earnie57

New Member
Joined
Feb 7, 2025
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3
Location
Missouri
Just put together a 375rum. Lilja BR taper barrel, 700 action from Pacific Tool & Gauge, Terminator muzzle break, Timney 2-stage trigger, H&S Precision stock with mercury recoil reduction system, and a 20 moa ramp under a 7x35x56 Nightforce.
New barrel, new brass loaded with 350gr Sierra Matchkings at 2,600 muzzle velocity. 10 shot string under 1 moa. Will get to 0.5 moa- with fireformed brass and a little tweaking. Kicks like a lightweight .308 with 150gr loads. This load is still supersonic at 1,500 yds. Very pleased.
 

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27", snuggling up bullet to lands and grooves, a little long. Too long for well. 300gr and 250gr do. 350 SMKs are just a bit long. Have to get that to you later. Not at home now.
 
Barrel length?
Free bore?
Loaded cartridge length?
Thanks
Loading at 3.6". Now the Matchkings are longer and more tapered. They are coming in around 3.65" or more. The dies grab the shoulder so, the MK's are longer than the Gamekings. I load a little long and necksize. I push into the lands and grooves, no free space.
Anyway, 98.9 grains of Magnum.
The big thing is the Terminator and the H&S recoil system. No massive recoil. I'm pleased.
 

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