Quote Originally Posted by nikonNUT View Post
I'm thinking 5/8-24 seems a bit small for a .338 (wall thickness seems kinda light) but who knows...
Nah, it's fine- and most likely what you have (same as my 110BA). Wall thickness is only 15 thou less than with a .30 cal, still well over .115 and more than adequate.
I don't get concerned until I get below .100- but there's no hard and fast "rule" here.