Winchester White box and semiautomatics.

[ShipWreck]

I have used it for many years. I had 1 round that would not feed once - a couple of years back. Case was oversized.

This guy isn't happy, though:

http://www.hkpro.com/forum/hk-handgu...0-blew-up.html

[kerplode]

I think I've launched a literal ton of WWB downrange over the years and haven't had any issues with it in any of my 9mms. It's not the hottest or best stuff, but it's always worked well for me.

Any ammo can have issues, though...I recently had a round of RA40T squib on me. That was exciting...*pop* and the bullet kinda arcs out of the barrel and lands in the dirt about 10 feet in front of me.

[brickboy240]

I have run tons of WWB in 9mm, 40SW and 45ACP for many years, through the following pistols with zero troubles...

Glock 17
Glock 19
SIG P228
SIG P220
FN Hi-Power
Springfield Armory Milspec Stainless
Colt Combat Commander
Glock 22

Maybe it is the pistol? The M&P series had several teething issues when they came out and are known problem children to many.

[Mozart]

Winchester WB is the only ammo that I have any malfunctions with in my Glock 19. Last time I bought some, I had 2 light primer strikes out of 50 . . . . put them back in the mag and they both fired the second time. Not a big deal, and actually I kinda like this, because it gives me a completely surprise opportunity to work a malfunction.

[Rayrevolver]

I feel like I had a case of WWB 115gr that did not like my M&P9Pro.

2 or 3 FTES and the pistol went back to S&W. Within 100 rounds of getting it back and more FTE.

I sidelined the WWB and ran AE 115/124/147 with nary a hiccup. This was a few years ago.

It happens. I just had a weird thing with 22LR going 11 failures in a row with 1 brand, and 3 other brands run 100%. Sent the ammo back and the manufacturer says it tested and shot fine... whatever!

[bigdave24]

WWB has a smaller diameter rim than most other factory ammunition, so some guns have trouble extracting it.

[Uni-Vibe]

No problem with WWB.

But Monarch / PPU 9mm fmj failed to cycle where all others cycled just fine.