Location: Third bunker on the right,Central Virginia
Liked 8414 Times on 3647 Posts Likes Given: 1300
IF the rim is being dented, the problem MAY be that the gun has been excessively dry fired, dinging up the mouth of the chamber. Check and see if there is a ding. If so DO NOT REMOVE IT- you want a smith to "iron" the metal back in place with a chamber iron.
If the rim is NOT being dented by the firing pin, then you may have a FP problem- chipped, dirty, not lubed.
By "spin" the round, are you saying that the hammer strikes the round once without firing, but by rotating in chamber and hitting it a second time, then it fires?
One of three things, the ammo or the main spring or (as stated above, the .22 was dry-fired and) parts are deformed.
Most semi-auto .22s require a HV round to work properly. Care must be taken on which HV ammo you get. CCI does not recommend Stingers in those that the chamber is not cut to the ANSI specs. And most European .22 are not to American National Standards Institute specs.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)