I wanted to buy some bulk 2.23 online and saw the Tulammo for $220/1000. I googled "does the S&W M&P AR 15 like Tulammo" and found several videos of guys who use it predominantly and loved it, so I bought it. Btw, my LGS also carries it and has good things to say about it. Now I admit I only had time to shoot 60 rounds of it but it was fine. No errors at all. Thank god because I have 940 more rounds of it.'