Lads
I have sometimes wondered how much metal ( % wise) is bored out of the chamber stubs to accept the reduced diameter of the new bbl to be put on...would anyone who does this, or knows,please tell?
Is it like %50 old metal & %50 new when looking down the chambers of a sleeved guns bbls?..or more original wall than new bbl, or what?
thanks
Franc
If I am reading your question correctly, you are asking how much are the remaining breech stubs are bored out to accept the new sleeves? I hope someone chimes in with an answer, it is something I am curious about as well.
I always wondered how much the step down in the new sleeve (where it enters the old breech stubs) weakened the sleeves, since that step takes place right in front of the chambers. Is there a different proofing requirement for sleeved barrels?
