Being the proud owner of an m14 type that 45ACP built back in the day, I will say that this guy knows his stuff. It is by far the favourite in my humble collection. Thank you for your continued support on this forum, despite having stepped away from the game!
M14 gas system shims
- Thread starter Beater
- Start date
FWIW, if your gas system is unitized, adding shims or roll peening may make no difference at all. I usually do one or the other (depends on the gap to get the port to time) even with unitized cylinders, but when I tested for accuracy it made no measurable difference ing MY groups.
Now if you have an un-unitized cylinder, you want a good tight fit at the shoulder journal with a gas lock that just barely rotates into position.
Now if you have an un-unitized cylinder, you want a good tight fit at the shoulder journal with a gas lock that just barely rotates into position.
hmmm yes, good point. With a feeler gauge set one can measure the gap between gas band plate and cylinder 'with' gas port alignment tool (drill rod) inserted. Then just temporarily place shim stock strips between the cylinder and band while unitizing (tig method). This was in fact the method practiced in my shop when building or accurizing customers rifles.
brass$pitter
CGN Regular
- Location
- grande prairie, AB
Could I get a picture of the "buttress" your talking about
Phat Eagle
CGN Ultra frequent flyer
- Location
- Fraser Valley, BC
good to hear!!
and thankyou for the kind words.
Miss your clinics! Hope all is well upcountry.
