had afew 520's great little guns, yes they crack but mostly from super velocity .22 ammo with more pressure like velocitor - mine have been fine for 20 years with subsonic and
standard supersonic...
Type: Posts; User: Carbine
had afew 520's great little guns, yes they crack but mostly from super velocity .22 ammo with more pressure like velocitor - mine have been fine for 20 years with subsonic and
standard supersonic...