Heavy for caliber vs light for caliber barrel life.

[scope eye]

Not being an expert, may I say this. Pushing a heavier bullet is moving more mass, which may expose the barrel throat to greater heat for a longer period of time???? But basically, I think barrel wear is a function of how much powder is pushing what size bullet down it's corresponding hole????

Thanks ;-))........Jim

That pretty much sums it up.

Dean

[FW Conch]

You know, to my way of thinking, we shouldn't call it "Overbore"?

It's really "Underbore" ????????? ;-((