.17HMRmag.com My mag (in my .22WMR) isn't a perfect fit, but it works. Also, I can't get 10 .22WMR rounds in mind without literally denting the side of the 9th round with the downward pressure of the 10th. When I shoe-horn the 10th in, it doesn't look like it's at the proper angle, but I've yet to test it. Perhaps HMR rounds are a little smaller in diameter (haven't measured) but for .22 mag, my 10 rounder is an 8-9 rounder.
Still thinking of ordering more though.
Still thinking of ordering more though.
