ar 10 bolt operation

javy

Sergeant
Full Member
Minuteman
Feb 22, 2011
271
33
69
Texas
might not be the wright place to ask this question...

bolt does not lock open after the last round is fired. does not happen all the time, maybe 50% time.

wondering if load was not strong enough? never has failed to feed or fire or any other problems. upper and lower are mega "ma-ten", bolt carrier group is dpms.

load is 44.0 grs of ramshot hunter and 123 gr hornady.

anybody with experience in this area ???

thanks for your help, javy
 
Re: ar 10 bolt operation

could be lots of things.....
too heavy spring
bad mags
clogged gas port
light load...
does it happen with all the mags?
what is the caliber?
do you have a chrono?