Handloads: Hunting With The .375 Winchester

by
posted on November 24, 2022
.375 Winchester

Winchester chambered the .375 Winchester cartridge in its lever-action Model 94 XTR for only a few years during the late 1970s. Marlin, Ruger and Thompson/Center also made their own very short runs of .375s. These relatively few .375 Win. rifles have reached collector status after being out of production these many years, and bullets and brass for handloading them is limited.

.375 Winchester specsNorthern Precision Custom Swaged Bullets has projectiles for the .375 covered though, offering 180-, 200-, 225- and 250-grain Flat Tips. Lead cores are cast for the bullets, which are inserted into a thin jacket for rapid expansion or bonded in a heavy jacket for near-total weight retention. The bullets are also available with a spitzer nose for single-shot or bolt-action rifles.

Cases for the .375 Win. are difficult to find and expensive. Fortunately, years ago, I bought several bags of Winchester brass with my .375-chambered Model 94. Starline cases are occasionally available. Acceptable cases can be made by expanding the neck on .30-30 Win. cases. Lots of lubricant is needed on the inside of the case necks, and expanding them first on a .35-cal. expander ball and then a .375-cal. expander ball eases the forming process. Expanded .30-30 cases are about 0.120" short of the 2.010" trim length of .375 cases. These formed cases should only be used with low-pressure loads, as .375 Win. cases are thicker to withstand the .375’s higher pressures.

Reloder 7 has produced the best accuracy and velocity with every .375 jacketed and cast bullet load I’ve shot over the years. Fired by Reloder 7, the Northern Precision bullet turned in a standard deviation of velocity of 7 f.p.s. over nine shots, and five groups at 50 yards varied in size from 1.32" to 2.82". 

Latest

Brownells (2)
Brownells (2)

Brownells Donates $100K To Special Operations Wounded Warriors

The Brownells donation will allow Special Operations Wounded Warriors (SOWW) to continue its mission of providing therapeutic outdoor experiences, professional therapy and other services to wounded veterans.

The .45 ACP: History & Performance

Spurred by the need for a more powerful cartridge from the experiences of the Moro Rebellion in the Philippines, the .45 ACP has enjoyed extensive popularity in both military and commercial circles for more than a century.

Federal Custom Shop Offers Custom Loads For Springfield Model 2020 Waypoint

Federal's Custom Shop now offers handcrafted ammunition designed particularly for use in Springfield Armory's Model 2020 Waypoint rifle.

The Taurus Judge Story

Originally started as a gimmick by Taurus with its .45 Long Colt revolvers, the Judge line has established itself in the market as a potent compact package with its .410 bore chambering.

Rossi's Model R92: A Popular Brazilian-Made Lever-Action

The Rossi USA R92 line—based on the Winchester Model 1892—continues that tradition with versions that satisfy everyone from traditionalists who insist on the warmth of wood, to gun owners who demand modern touches.

Favorite Firearms: Granddad’s Winchester Model 62A

Once his grandfather's gun, a pump-action Winchester Model 62A became a personal favorite for NRA member Mike Shoemake.

Interests



Get the best of American Rifleman delivered to your inbox.