I bought one of your 1,000-rd cartons of that M-22 "black bullet" stuff at the last gun show, and on my last trip to the range, I was getting misfires at a rate approaching one round in ten in my 22/45. I have in front of me on the desk a round of the stuff with a nice, neat firing pin strike at the 9, 12, and 3 o'clock positions. That's three times I ran that particular round through the gun, setting myself up for disappointment each time like a loyal Star Wars fan buying the latest Ultimate Special Director's BluRay SE.
When I bought the ammunition, I thought "Wow, this is a pretty good price!" Now I know why. I guess when you leave the priming compound out of a tenth of the ammo, you can pass the savings on to the customer.
Seriously, Winchester, there are more duds in that carton than there are in the closeout bin at the local Blockbuster.