My first gun was a .22 rifle, when I was 12. It held 18 rounds of .22LR, or 21 rounds of .22SR in the magazine, and was semiautomatic. I still have it. Other than caliber and detachable magazine, there's not a lot of difference between it and my AR15. I could still fire 21 rounds of lethal ammo without stopping to reload. Is it considered an assault weapon?