Hugnot
Well-Known Member
Good - should work - set back shoulder of 6.5 about 10 thou and fire form neck out from 6.5 to .338. I have done this with 7mm Rem mag to .375-.338 - less of a stretch.6.5 PRC is pretty much just a necked down 338 RCM. Brass should be readily available and simple to form.
I just got a 6.5 PRC - hopefully, it's trendy state will continue so brass will be available.