224 Valkyrie
Since 1976

Unprimed Brass Cases

375 Win (Large Rifle primer)

375 Winchester
2.009 - 2.014 O.A.L.

The .375 Winchester was brought to the market as a heavy hitting option for Winchester's "Big Bore '94" rifle. This cartridge is a beefed up and shortened version of the .38-55 Winchester and is capable of clean kills on all of North America's big game within its range limitations.

Status: Available Now

Box of
375 Win

*Starline Brass does not sell any loaded ammunition. What you are purchasing are brass cases only and will need to be loaded into ammunition in order to be fired from a firearm.


Overall Rating
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Reviews: 3
Keith W of Puyallup , Washington
5 Stars5 Stars5 Stars5 Stars5 Stars
I came by this caliber in a round about way. I was intending to buy a single shot rifle in 38-55, even was able to try one out. I kept bouncing back and forth researching loading data between the 38-55 and the 375 Winchester. I set my focus on trying to find the latter. Good luck with that, they are a bit scarce. I have enjoyed owning T/C Encores for sometime; I found a custom barrel maker who had a 26" blue barrel in stock; all coincided with Starline coming out with 375 Winchester brass of their typical first rate quality. I am having a great time working up loads for this fine caliber. Getting very good results and my tests are getting better and more refined all the time.

Thomas E of Woodlawn, Tennessee
5 Stars5 Stars5 Stars5 Stars5 Stars
I just received my order of 250 375 Wnchester cases.It is beautiful. I can now put my fathers Winchester Big Bore 375 Win to work next deer season here in Tennessee. I'll also use it Hog hunting.All the cases are very consistent in length and weight. Now if you good people at Starline would add 300 Savage and 35 Remington to the lineup life would be great.

Alan F of Melbourne, Florida
5 Stars5 Stars5 Stars5 Stars5 Stars
Checked Excellent because ALL other Starline products I've bought have been PERFECT! Starline, call me when the .375 comes available!