First off I would like to say im new to the site. Was pointed this way from I-55Bandit... Here is my question. I shoot a 870 Super Mag. Last season I was shooting a Jelly Head choke with 3in Hevi-13 magnum shells. I was satisfied with my pattern, but the more I read about other peoples patterns the more I wonder if I should try to change mine? I was gettin 17 pellets in a paper turkeys head/neck at 40yds... Im gonna continue to shoot the Jelly Head choke, my question is this... Will I get a better pattern out of my gun if I should a 3.5"? Should I try some Hevi-13 number 7's, or stick with the shells I have got now? I wanna be able to feel comfortable shooting to 50yds, but with the price of shells, and bein a college student, dont wanna just go shootin the wallet empty. Any feedback is appreciated! Thanks!