Another headspace question

High Road · July 03, 2003, 17:54

Finished barreling my para barrel to my Imbel logo recv'r ( 03 ). Closes on .256 pin won't close on No-Go guage .Also closes with the two thumb on a .258. Won't close on the NO-Go. I admit it ok , not real smart with this set back thing and the math. Anybody know what size locking shoulder I should use.?
R Webster

dougjones31 · July 03, 2003, 18:14

2 thumbs on a .258 pin

.258 -.002"( if you are using a forster 1.630" go-guage)+.001" (for setback) = .257 LS

.259 LS if you are using a Clymer 1.632" go-guage.

NOTE: Remember to subtract another .002" if you use a Vanden Berg LS---!

High Road · July 03, 2003, 18:55

Thanks dougjones 31,
It's nice to know when you get something right. Thats what I thought .257. Just checking in with the more seasoned veterans out there . By the way , using the forrester guages and fn locking shoulders. To the spare parts bin I go , looking for the right size locking shoulder. I hope I don't wind up filing one down !
R.Webster

July 03, 2003, 17:54	#1
High Road Registered FALaholic #: 9714 Join Date: Mar 2003 Location: Broken Arrow, Ok. Posts: 145	Another headspace question Finished barreling my para barrel to my Imbel logo recv'r ( 03 ). Closes on .256 pin won't close on No-Go guage .Also closes with the two thumb on a .258. Won't close on the NO-Go. I admit it ok , not real smart with this set back thing and the math. Anybody know what size locking shoulder I should use.? R Webster __________________ N/A

July 03, 2003, 18:14	#2
dougjones31 Registered FALaholic #: 6967 Join Date: Jul 2002 Location: South Carolina Posts: 4,282	2 thumbs on a .258 pin .258 -.002"( if you are using a forster 1.630" go-guage)+.001" (for setback) = .257 LS .259 LS if you are using a Clymer 1.632" go-guage. NOTE: Remember to subtract another .002" if you use a Vanden Berg LS---! __________________ "This year will go down in history. For the first time, a civilized nation has full gun registration! Our streets will be safer, our police more efficient, and the world will follow our lead into the future." --Adolf Hitler, 1935

July 03, 2003, 18:55	#3
High Road Registered FALaholic #: 9714 Join Date: Mar 2003 Location: Broken Arrow, Ok. Posts: 145	Locking shoulders Thanks dougjones 31, It's nice to know when you get something right. Thats what I thought .257. Just checking in with the more seasoned veterans out there . By the way , using the forrester guages and fn locking shoulders. To the spare parts bin I go , looking for the right size locking shoulder. I hope I don't wind up filing one down ! R.Webster __________________ N/A

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