Last year I had a 264WM barrel made for my DTA Covert. I’ve been shooting the 6.5SAUM for several years now and love the rounds performance but don’t like the case prep or feeding issues. I figured the WM would be worth a try, the cases feed great and no real brass prep.

The only issue I’ve run into is the new Winchester brass seems to be too short in the shoulder. I get around 0.028” extension on the shoulder after the first firing. Barrel maker checked the chamber and says it’s good, he also says this isn’t uncommon with Winchester belted brass. Anyone run into this before? I’m going to be doing a false shoulder on new brass from now on.

Here are a couple of pictures of the rifle (wearing the 16” 308 barrel, I recently Cerakoted it. Turned out pretty well.