When I was young.........ALL brands of .22 ammo fired 100%. I don't ever recall a dud in the 60's & 70's. Apparently Quality was more important back then.
I was waiting for mention to come up of Federal's Auto Match. Approximately 15-20 years ago I was introduced to this ammo (1 or 2 box changes ago) and found it to be consistent and acceptably accurate. I tried to keep it "in stock" and buy more as I found it through the Obama Ammo Drought, but I seem to notice that now I'm getting misfires where I never experienced them before. It works OK for plinking but I fear I'll have to pay more for serious shooting.
The good news is that I built up a nice backlog of about 7-8000 rounds of the stuff so I can plink and practice a lot!
Froggie
I think I discovered your problem.Earlier this year I happened to be in WalMart and saw they had ample supplies of Federal .22s in the newly designed red box. They were at pre-Obama pricing so I bought a couple.
A few days later it was becoming quite clear that they were about to declare a Pandemic and my thought was "Oh, no, not again". So I went to all 3 Walmarts in the area and bought out the entire supply. I was proud of myself until just recently when I started shooting some of the stuff. In my last 2 outings about 80% went "boom", 10% a mere "pop", and the other 10% made a noise half way in between.
When I open a brick I always transfer the ammo to the gold colored plastic 100 round CCI Minimag boxes that I started collecting back in the 1970's. Thus, I don't have the paper boxes any more and don't know what the lot numbers were.
Needless to say, I am very disappointed in federal. It's not the gun....it happens in several handguns and rifles. When they only pop, its not enough to cycle the slide in a semi.
So much for being prepared!
I have had good luck with the Federal bulk packs. I will admit the ones I am using were purchased 20 or so years ago.