Got a wild hair idea to make a rifle with 22BR front end and 308 base on other end since brass is easier for me to come by.
Right now I have a 22-250 built on 03A3 action and it won't feed it but I know the action will feed 308. So I figure if I can punch it on forward with the 22BR08 or 22/308 why not?
Anybody done this? Or 22/308?
Humpy
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Anybody got a reamer for this they no longer need?

basically what you are wanting to do is a variation of the 22/243. that is the route that i'd go as there are dies and reamers already available. there really is nothing to gain by using the br neck length or shoulder angle.

how bout the .228 ackley magnum