View Full Version : breeching washers - barrel math

September 07, 2001, 08:38
where can i get breeching washers? the one that came with the kit is too thin (.o565). the barrel hand tightens to 11:30 and easily torques 12:30. how thick should the washer be? thanks in advance!!
204 :confused:

[ April 10, 2002: Message edited by: gary.jeter ]

September 07, 2001, 08:42
Brad at gunthings.com


September 07, 2001, 09:55
Each degree of barrel rotation moves the barrel shoulder 0.0001736 inches closer to the receiver.

Determine how many degrees change you need to establish the correct timing, then multiply that number by 0.0001736

The product should be added to the thickness of your current washer to determine a sum which is the thickness you require.

Hope this helps.