JPro -

I'm having a 6mm AI built right now. I had a 6x.284 a few years back. Both with 1-14" twists.

I was told by the shop that coordinated the 6x.284 that I'd only get about 400 rounds of barrel life but they'd be 400 rounds of pure fun. They got the last part right! But at 800 rounds the barrel was still going strong. I believe I could have gotten another 700 rounds out of it. I was shooting primarily 70 grain b-tips at about 3850.

I expect my new 6mm AI to have barrel life pretty comparable to a .220 Swift assuming similar treatment. I figure it'll be going strong long after I really wish it'd give up so I could chamber it for something else yet. smile

Take a look at Sierra's latest, or maybe most recent previous, manual. That's the only 6mm Rem AI data I've seen published.

Tom

Last edited by T_O_M; 07/28/10.
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