Welcome to the new PGCA Forum! As well, since it
is new - please read the following:
This is a new forum - so you must REGISTER to this Forum before posting;
If you are not a PGCA Member, we do not allow posts selling, offering or brokering firearms and/or parts; and You MUST REGISTER your REAL FIRST and LAST NAME as your login name.
To register: Click here..................
If you are registered to the forum and keep getting logged
out: Please
Click Here...
Think I can insert a 8 inch spring inside caliper. Expand until it touches , compress, remove then mike the caliper. Muzzle is easy have a tube mike. Take outside then subtract wall thickness x 2
Will try it in a 12 that has accurate dims recorded see if it matches first.