Savage prefit fired brass neck diameter

[Coyotefurharvester]

I helped my BIL install a Savage prefit rem 22-250 ss varmint barrel on his 110 fp. New brass(Sig) fired has a 0.252-0.253 diameter neck. This seems tight, since the loaded rounds were 0.249. Bolt click started 3/10 of a grain under the top load of AR comp, primers were fine. I have no experience with Comp, just a suggestion to him as a powder to play with. Is the neck diameter something he should talk to the manufacturer about( he doesn't have the equipment to turn necks) ? Would a tight neck be a reason for the early pressure sign? Otherwise early loads with Hornady match bullets have all resulted in sub moa groups(5 shots) no seating depth tests started. This was our first garage barrel change, we had go-no gages.

 

[Dusty Stevens]

So it seems to have a .254nk chamber. Very much enough room. One test is to see if a bullets slips in a fired case neck. If not they need to be turned

 

[243winxb]

The SAAMI drawing showes a chamber .001" larger then a maximum loaded round.

Tolerances- acceptable range. Loaded round -.008"
Chamber + .002"

Both show a taper to the neck .

 

[KMart]

22-250 + Lapua brass = clickers on first time firing Remedy? (problem solved!)

Got a new-to-me Kimber Montana in 22-250. While running through a range of charge weights with CFE-223 using virgin Lapua brass to find max pressure, I started experiencing "clickers" way before any of the traditional/more common pressure signs started to show. This is the first time I have...

forum.accurateshooter.com

Here is a discussion of the same problem from November. You commented in post 31. Maybe it is the brass.

 

[Coyotefurharvester]

No issues with bolt click until the the upper range powder load, after measuring the Sig brass I don't think I would even bother trying Lapua brass. Didn't have the chronograph with when we tested fired after barrel install.