Interesting to see other 375 Win guys around. I have the Marlin, don't shoot it as much as I once did but going to put it into the deer hunting line up this year. I decided to put an XS system (scout scope mount & ghost ring sights) on it like a couple of my other Marlins.
I have used it quite a bit over the years for my hunting on my ranch and elsewhere in Texas. Even used it on a mule deer in Brewster County!
Largest hog taken on my ranch was killed with the 375 Win, lent my rifle to my BIL who was visiting from PA.
Back to the topic. I did get plenty lucky with 375 Win brass. I went into a Sportsman Warehouse that was closing and noticed that the brass had been drastically reduced. They actually had the 375 on the shelf. I asked them if they had more in the back and they brought out near a case of it. I bought it all.
I also have a Rossi Rio Grande that started life as a 30-30 Win. While it was new in the box, I sent it to JES and had it rebored & rechambered to 38-55 Win. I treat it just like the 375 Win and it is an awesome rifle. I've refinished the stock with since this picture was taken. This is really a nice rifle.