Marlin 375

[North Country Gal]

The 375 Winchester was one of three new cartridges introduced in the late 70s with Winchester's Model 94 Big Bore, which was a strengthened Model 94 to handle higher pressures. The other two were the 307 Winchester and the 356 Winchester.

Here's an interesting fact about the 375 that I found on the Buffalo Bore website. Good ting to know if you can't find 375 ammo.

"OUR 38-55 AMMO WORKS IN ALL WINCHESTER 375 RIFLES

Our 38-55 ammo is also designed to work in ALL 375 Winchester chambered rifles. ALL means ALL. Winchester, Savage, and Marlin all chambered rifles in 375 Winchester. All 375 Winchester rifles utilize chambers long enough to accept the 2.085 inch 38-55 brass, even though 375 Winchester brass is only 2.020 inches long. By using the longer 38-55 brass, we accomplish two things:

1. We get the bullet closer to the rifling’s and this creates a generally more accurate load.

2. The longer 38-55 brass, with thinner case walls than 375 Winchester brass, gives much more case capacity and this allows chamber pressures to drop immensely. i.e. our 38-55 loads give the same performance (a 250gr. bullet @ 2000 fps) as the original 375 Winchester loading, but at only 38,000 CUP instead of the industry max. pressure of 52,000 CUP that the original 375 Winchester was rated at. "

[JEBar]

interesting .... since Buffalo must meet SAAMI specs would it be reasonable to believe that would be true of 38-55 ammo made by other manufactures

[North Country Gal]

Correct, but there's precious little in the way of factory loaded 38-55 ammo these days, too. Better than the 375, of course, but still not ammo you'll find in the average gun shop.

[JEBar]

10-4 .... it appears that hand loading may be the best option for both

[North Country Gal]

Correct. The few 38-55 shooters I know handload for it.

[Travlin]

The best way I can describe shooting the Marlin .375 is that it is about a 3/4 45-70. When I bought my rifle, along with the W.W. .375 brass I also bought a few boxes of 38-55 brass. These I cut down to the same length as the .375 brass and used them for my reduced cast bullet loads. What is never mentioned about using 38-55 brass or blown out 30-30 brass is the strength of the case. Weigh a .375 case and then weigh one of the others. If you could see a .375 case cut lengthwise down the middle, you would notice that the head is noticeably healthier. Also notice that the Winchester 94 had the back of the receiver thickened to handle the .375. The Marlin .375 looks just like any other Marlin 30-30 or .35 etc. What do we learn from this ?

[Travlin]

I almost forgot, my rifle just has the stock buttplate and no add on recoil pad. The rear site is a Williams Fool Proof that I put on before I ever fired a shot. As far as recoil , it is not a big deal although you know it when you pull the trigger. I am 6' 3" and about 185 but I am on blood thinner but no bruising unless I shoot about forty or fifty shots from the bench in one sitting. When I had a 71 Winchester .348 the recoil never was a problem. As far as bullet trajectory etc. it depends on the load . Consult the tables.

[BigAl52]

I owned a 375 Winchester for a short time but I think the gun had issues I could never get it to shoot very well it was shooting real high. I sold it to a friend who wanted it real bad and knew of the issue I was having. Hes working with it to try to figure it out. I will just keep my 38-55's.