My home made shot is not perfect but I have shot factory shells compared to my reloaded shells and they patern the same. I shot into a patterning board at 40yds.
I have to admit I was not sure if it would be the same accuracy as commercial shot. But I think it patterns better and my accuracy has improved since making my own shot.
I know I can shoot more for the money and this might have improved my game because of that. In saying that, it is at the lest, the same as commercial shot. Well worth the work and investment for me.