I had a .264 WM barrel put on a Ruger #1 about 28 years ago. I have a lot of brass and good loads for it so will stick with it until I shoot it out.
Exactly. Brass, nice die set, powders applicable.
I’m not moving into another chambering and buying a bunch of brass and dies for a modest gain. I’m quite happy with accuracy and velocity the old, decrepit .264 Winchester Magnum spits out.
😁