Hey guys. Which slug shells should I shoot with an 870 wingmaster 12 guage shotgun? I think I usually shot the 1 oz MAX slugs made by remington before but now there are like 3 types of slugs by remington. 1 of them is like 1 oz 2/3"4 at like 1560 fps and the chart on the box shows it hardly drops an inch out to like 150 yards or something. These are for a rifled barrell? Is mine a rifle barell or a smooth barell? It was purchased like 7 years ago and has a short stock barell on it. If it is a rifle barel then I should go with 1560 fps slugs righ? The MAX slugs drop like 10 inches over 100 yards. Any info on how to make this simple for me would be greatly appreciated!