I can't remember how long ago, but "Precision Shooting" or " The Accurate Rifle" had an article on this subject. IIRC, it was an interview and I believe it had something to do with the bore expanding from heat. Just can't remember like I use to!
Shew me thy ways, O LORD: teach me thy paths. "there are few better cartridges on Earth than the 7 x 57mm Mauser" "the .30 Springfield is light, accurate, penetrating, and has surprising stopping power"
