I purchased one a week ago.mine came withthe 10 round magazine. I mounted a Nikon P-22 on it and took it straight tothe range that day.zeroing the scope was easy. I onlyfired 50 rounds and I did have one failure to feed. I cleared it and finished the rest of the magazine. I used range ammo that came in a plastic bag, so I dont know what type of ammo I used.