I bought the M2000 in December 2009. The gun worked great though the first two boxes of shells. Then 1 misfire in the third box. Now it misfires about 20% of the time, regardless of the brand of shells. it makes very faint marks on the primer when it misfires. It saved the lives of several ducks at the end of the season. When I called the company to set up the warranty repair they asked what brand of shells I was using. They said that they are having problems with Remmington and Kent shells. I was very disappointed to hear the gun Company blame the ammo. The gun is being sent back for repair, but I WILL NOT be using an M2000 next season.
The gun came back from repair after one month they said that they adjusted the fore end and trigger bow. When the problem started I began visually checking the position of the extractor after each shot. The gun never failed to cycle completely. The bolt always rotated to the fully closed position. I doubt that the fore end work did anything. However, whatever adjustment was made to the trigger bow rendered the gun as good as new. When shooting clays it fired fifty two times before starting to misfire, an exact match of its original performance. The trigger seems to have rough spots in part of its travel. My guess is that the trigger group was poorly machined. Looking at the other reviews some people are having the same problem and others have no problems. This seems to be a company with some quality control issues. I will be sending it back again.
The gun was returned two weeks after being sent out. This time they replaced the inertia spring. I have fired 50 rounds so far, no misfires.
I fired another 100 rounds with 2 misfires. Total since the last repair 2 misfires in 150 rounds or about 1.3% failure rate. Thats not really bad enough to send it back again. I have a C&R license and a collection of firearms. The Stoeger M2000 is the least reliable gun that I own. I bought another shotgun to hunt next season. I have fired more rounds through the new gun than the Stoeger with no problems at all.
1/10/12 As an update, I had not used the gun in over a year, but then lent it to a guy who wanted to hunt with us but had no gun. He had two misfires in a half a box of shells. The warranty is long gone so with nothing to lose I completely disassembled the gun and found the following: (part names and numbers are from the owners manual) rough milling marks hammer T22 right side bottom half of the hammer where it pivots, very weak hammer spring T15, cartridge drop lever T23, rough edges left side also tab on this part that is suppose to contact the hammer spring bar T14 at the end of the hammer's movement was too long and was contacting the hammer spring bar at the beginning the hammer’s movement in the area where the spring bar is riveted to the hammer. I ground the tab to shorten it by about .003” and polished out the milling marks and rough edges. Wolff does not make springs for this gun. I made a brass bushing .07” thick .25” OD .12” ID and slipped it onto the hammer spring bar ahead of the spring. The Turkish Terror is now 100% reliable. I emailed Stoeger, they are sending me a hammer spring at no charge. (unless you are a gunsmith do not hone or file any point at which the sear contacts the hammer)
1/24/12 The new hammer spring arrived, 1/2" longer and much stiffer than the original. I replaced the original spring and homemade bushing with the new spring. My DIY gunsmith special is still working. My opinion if this thing would be better if it had been repaired either time it was sent back. Not only did I get a lemon, but then customer service failed as well.
If this is a Benelli at half the price then I don't want a Benelli at any price.
3/15/12 Since I repaired the gun I have been using it to shoot 5 stand. I have put hundreds of rounds of cheap Wal mart ammo through it with no failures to feed or fire.