I was going to contact Noveske but figured I see if anyone had inquired already. I just re-barreled my work gun with a Noveske 10.5. My dept. is going to be obtaining some .22 conversion kits for work platforms in pistol & rifle for cheap training. I know that it isn't recommended to shoot lead out of Glock barrels because of the polygonal rifling. So my question is does the same apply to a Noveske barrel. If anyone knows or has first hand experience, your feedback is greatly appreciated. Thanks