I bought an M&P22 over the summer, put 100 Minimags through, followed by a 525 round box of Remington Golden Bullets, with zero problems besides one round that didn't fire the first time.

 

I started a box of Winchester, and immediately the problems started: at least one or twice a magazine, the gun would eject the empty casing, but not chamber a new round. There's no warning because the slide closes fully, and so I end up dry firing which is terrible for the firing pin.

 

I went back to Minimags and the gun ran flawlessly. Does anyone else have an M&P22 that just doesn't like Winchester?

Is it Winchester Wildcat? I have a S&W 22A and it hates that ammo.

Yeah that wouldnt work in my ar conversion kit. Stick with high velocity 40 gn and you should be fine.

I use winchester dynapoint gt in my spikes upper with a walther barrel.In my rifle its hands down the most accurate 22lr ammo. Its a bit less under powered than Federal bulk pack but Its great ammo. Its a plated bullet not solid lead but I love that stuff.

Yea the CCI are obviously the best, but they're tough to find. People always complain about Remingtons but seeing as the gun runs them just fine, it's odd that a supposedly higher quality ammo is not working.

 

Maybe there's something just slightly different about their shape? I can't say I've ever had a similar malfunction in any other gun. Generally feeding problems happen with the round getting caught up somewhere, with this ammo it never even leaves the magazine.

I use Winchester M22's and so far it's been flawless. Dicks in paramus has them in stock if you want to give them a shot. Federal bulk packs are really hard to come by.

I use nothing but CCI

Winchester m22 run flawless in my mp but its the mp15-22. $50 for 1000 cabelas

Same experience with my 15-22. Remington golden bullets cycle flawlessly...Winchester...does NOT like them. Occasionally use CCI, but as I see it, for the price GB's are the way to go in mine.

Same experience with my 15-22. Remington golden bullets cycle flawlessly...Winchester...does NOT like them. Occasionally use CCI, but as I see it, for the price GB's are the way to go in mine.

 

Other way around for me in 10/22 and M&P 22. Winchester works fine but is dirty. Golden Bullets dont cycle have the time and I've had half a dozen cases rupture.

+1 on Winchester being dirty...Used what I had left in my Ruger revolver...wow, filthy. Never had a case rupture on the GB's but I will need to keep an eye out.

Tell us what winchester bullets you purchased, I am thinking their low velocity and they are not cycling your slide far enough back to pick up the next round.

Also what grain bullet.