I got curious about barrel life last night and was doing a little digging around when I ran across this article that discusses how brass and steel-cased ammunition affect barrel life. If you haven't seen the article, it's lengthy but worth a read. Bottom line: it appears to be less expensive in the long run to use cheap practice ammo and periodically replace barrels, unless of course your rifle is a family heirloom or collector's item in which case the cost of ownership is irrelevant. Doesn't apply to guns used for competition.
Even though I've probably put 10 or 15 boxes of steel-cased Wolf ammo through the .30-06 I hunt with during practice over the last few years, the barrel in that rifle will still outlast me at the current rate of fire (~200 rounds per year).
Even though I've probably put 10 or 15 boxes of steel-cased Wolf ammo through the .30-06 I hunt with during practice over the last few years, the barrel in that rifle will still outlast me at the current rate of fire (~200 rounds per year).

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