It's funny, just went to the desert in California with my son and his friends for a watermelon demolition derby and Bar-B-Q ( 1st Annual Lakeside Fire Dist Watermelon destruction derby retro SP1 clone shines! ). Shot lots of 5.56 (about 1,500 rounds) from my Sp1 AR-15 clone (and other AR-15s), and lots of ammo from my VZ-58. Funny thing is, I wished I had brought my carbines to shoot! They are absolutely my favorite long-gun to shoot!