Good points. Shooting lots of patterns is where many folks have a hang up. You can do it on paper, but it's very tedious, at least to me. Invest $150 bucks, much less if you can scrounge the steel, build yourself a 4' X 4' steel pattern plate, and take pics with the cell phone of any patterns you want to save. Probably the most useful shotgunning project I've done since I began reloading.

SRH

May God bless America and those who defend her.