CZ-457 Barrel Grub Screws
- Thread starter tmwinds
- Start date
PhilD
Gold $$ Contributor
It’s not that critical but start at 25–30 in-lbs and increase incrementally if needed while checking for proper barrel seating and accuracy. Avoid over torquing, the barrel cuts are close to the chamber and the metal is thin there…it could affect the chamber dimensions. Apply a light thread locker if the screws are removed frequently.
tmwinds
Gold $$ Contributor
That’s exactly what I torqued them to according to my FAT wrench which is probably plus or minus 10%. Thanks.
TheOtherZilla
Pull my finger
Pretty dang tight.
1Merlin
Silver $$ Contributor
You got all technical on us....!
Liven The Dream
Gold $$ Contributor
As I remember 1-800 Google lots of Videos and Barrel makers articles.
Two grunts.
35 inch/ lbs.
dhagerty40
Gold $$ Contributor
The manual says to torque to 3.5 nm which comes out about 31 in/lbs
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