COPIED FROM ANOTHER SITE
Stovepiping: the partial ejection of a fired case, usually leaving the open mouth of the case sticking out of the ejection port, looking like a "stove pipe", and thus jamming the action of a semi-automatic firearm.
Stovepiping is caused by the slow or incomplete cycling of the bolt...! !
Causes of the slow or incomplete cycling of the 10/22's bolt:
0 Gummed-up action: the Ruger applied ‘preservative’ was not removed before firing, or oil was used as a lube...! !
0 Rifle was stored vertically after cleaning, allowing oil to run into the action & gum-it-up...! !
0 Unlubed or rough "Bolt Handle Guide Rod" [B-7]...! !
0 Action not lubed with a dry Teflon type spray lube or "CLP"...! !
0 Action not 'broken-in' yet..! ! Normally it takes 1 - 2 bricks [500 rds ea.] of High Velocity ammo to ‘break-in’ a 10/22's action...! !
0 Use of Standard Velocity or Sub Sonic ammo...! !
0 Aftermarket action parts misinstalled...! !
0 Scope base mounting screws rubbing on the top of the bolt.
0 "Hammer Strut Assembly" reassembled with the 'slot' of the "Retaining Washer" facing down; it must face UP...! !
0 Use of a non Ruger magazine...! ! Use a Ruger BX-1...! !
0 Magazine not seating with a 'click'...! !
0 Dirty or untuned magazine(s); see the "Sticky" Post at the top of this Forum for "Magazine Service"...! !
0 Magazine touching the stock in magazine well; can you pass a business card up both sides of the magazine all-the-way to the receiver...? ?
Note: The 10/22 is a "blow back" action, and it does not need an "extractor" to extract and eject fired rounds...! ! The “extractor” is only need to extract unfired rounds...! ! The primary "ejector" is the last 1/4" of the left lip of the BX-1's magazine throat...! !
You will have to see which cause(s) best fit(s) your particular situation...! !
Hope this helps....! !