I have been lugging around some 410 lee 210 tumble lube bullets that I cast about 17 or 18 years ago and suddenly had the urge to load them into brass and go shoot some of them. When I shot my 41 a lot , right after I got it back then I was using the 195 cast lee bullet and was getting pretty mediocre results with it and decided to try the tumble lube mold and only got as far as getting some of them cast up and then was distracted by something or other. I remember being very happy to be able to hit a milk jug at 50 yds with it. So this afternoon I shot up a box of ammo that had the 210 TL bullets loaded into them and they worked far better than I remember the 195's working. I was using 8 gr of Herco and seating the bullets out so that the crimp fell into the second lube groove from the front. They still chambered easily and I tried them at 25 yds first and hit a card board box and then proceeded to try to shoot at the same hole and got a pretty good group. then I went to 50 yds and had no trouble Hitting another card board box with a small dot on it. These show much better potential than the 195's ever did. I will have to cast up some more and play with it a lot more.