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Discussion in 'Gunsmithing' started by Parkerb14, Sep 6, 2007.
Can you use the stock Varminter barrel and have it chambered in .223 AI, and what would the cost be?
I'm no expert at this but I believe that AI is simply straightning the case and increasing the shoulder angle so there should be no problem in using a factory barrel. However, if you are going to spend the cash on AI, you might think about purchasing a better barrel and having it chambered for the AI.
one other thing, if you are talking about a semi auto rifle, you should ask some people if they work w/ AI rounds without further adjustment. The straight case could lead to feeding problems. DPMS does offer a 300 SAUM in their AR rifles though.
The short answer is NO , you will end up with a chamber with excessive headspace , kinda like a short Gibbs chamber. Now this can be done if you single load your ammo and use specail loads to fireform you cases but I would recomend against it.
The the true Ackley Improved desgine is slightly shorter at the neck shoulder junction than the standard case , this is why some guys get worried when they first shoot factory ammo in the properly cut Ai chamber because the bolt takes a little pressure to close.