Could be they come standard with a light recoil spring & not designed for HV ammo .
I needed to get the spring in my Stirling lightened to function properly with sub;s
opposite of what you're...
Type: Posts; User: Chris
Could be they come standard with a light recoil spring & not designed for HV ammo .
I needed to get the spring in my Stirling lightened to function properly with sub;s
opposite of what you're...