When I use to be the receiving manager at Cabelas, a couple cases of 10mm were damaged. And we were not able to sell them to the public. So I bought them just because it was a good deal. At that time I had little knowledge of what the 10mm was. But can?t pass up 2300 rounds for 420. And practicing for me is maybe a box of 50 each session. I currently work at federal right now!