I'm sure there is a really good ??? reason why ALL the after market bbl sellers have their chambers cut using industry standard dementions which means none of the chambers require neck turning, not even the 6 BR, BRX or the 6 Dasher. ALL EXCEPT the 22 BR [Lapua]. Maybe it is that when someone thought about necking a BR case down to .224 the only brass available was the Rem. brass ??
So anyone considering a bbl/ in 22 BR [Lapua] you have two choices get a reamer made with a .254-.255 neck and then you have a reamer that you can make a plaque for , or invest in neck turning tools, At least the neck turning set up can be sold.