Slugfest - Shooting 12ga and 20ga Foster Slugs at 50 and 100 Yards.

I wanted to see what sort of differences there were between some of the 12ga and 20 ga slugs I have. Using a Remington 870 Express Magnum 12ga with a field barrel and a Mossberg 500C 20ga also with a field barrel. Both have the Improved Cylinder choke installed. I found out the reason I was shooting so right-sided with the 870 is because the bead is installed slightly left from center. That's nice...