Who can make a 20mm barrel blank
View Single Post
March 20, 2013, 09:54 AM
Join Date: December 29, 2010
Location: Shoshoni Wyoming
Nenewt, 20MM is .787"
I gave up on my math skills and ability to convert, and just went to my shop and measured it.
So a 20mm is a slightly loose 10 gauge. The "standard" for a 10 bore is .780
Last edited by Wyosmith; March 20, 2013 at
View Public Profile
Find More Posts by Wyosmith
Page generated in