if you are in the south and would like a deal on some ammo, Academy has the Winchester 333 count ammo on sale for $9.99. my wally world sells this box for $11.xx. time to stock up!
I've sent close to 2000 rounds of Winchester Super X in "333" packaging down range thru my M&P15-22. Don't buy any .22LR by the case until you know your rifle likes it.
The first time I tried the Winchester 333s it didn't work very well. A lot of FTEs and a few FTLs. I have ran a few other boxes of 100 Super Xs and had no problems. The other day I put @ 150 rounds of the 333s through and I only had one FTL. I really burst a few times too. I think I will pick up another box of it to try.