I'm new to this forum and have a question maybe y'all could help me with. I bought a 9e in 2016 and have shot it many many times and it's always had problems with it misfiring. First time was with some steel casing 115gr ammo I found when ammo was scarce I had maybe ten misfires out of a couple boxes. Enough that I gave the rest of that ammo away. A little time went by and went to shoot again and a different kind of ammo did the same, a few misfires here and there. Then within the last six months I bought a hundred round box of Winchester 115 fmj and out of that 30 100 didn't fire. Some of the ones that didn't fire I loaded into my nephew's S&W and most fired. I finally had enough and sent it to Ruger. They changed the barrel, the striker assembly and something else. Said they fired 30 rounds of some ammo through it but not this specific Winchester ammo I had the problem with. I get the gun back and buy another box of this Winchester ammo and saw problem, 26 misfires out of a hundred. I brought those back home, removed all the bullets and checked the amount of powder in them. They all seemed to have the same amount of powder. I didn't weight it but looked like enough to make it go boom. I then took those empty casings and sprayed the with wd-40 to deactivate the primer, which I learned after does nothing. So to discharge the primers if they were still hot I put in my wife's ec9s and all of the primers that misfires in my gun except two fired. My question is have any other of you 9e owners experienced anything like this with this weapon or any for that matter? If so we're you able to correct it or should I just stay away from Winchester 9mm ammo for this weapon. I'd like to be confident using any ammo but I feel h to is thing not working might get me killed one day. Any thoughts or suggestions? I know it was a l on g post but wanted to be as accurate with the story as possible.