What are your real world experience with them? I’ve had good groups/kills with a 21’ 870 Express with Remington rifled tube and 1 oz Federal Premium Hydra-Shoks but I’d like to hear from other sabot/rifled choke tube only users. I’d like to try Federal's 2 & ¾’ 3/4oz Barnes Expander (1900 fps!) for my son to use for Iowa Youth Deer season. Thought I’d pick some brains before I buy a bunch of ‘em. Thanks for your time.