Hi Michiganiac and welcome to the turkey forum! I shoot the Kick's GT on a Remington 870 w/ 21" barrel. I use Win. HV 3" #5's in it and it puts out a great pattern. The Kick's or Comp-N-Choke both will work very well w/ copperplated lead shot, but I'd have to agree w/ Bigsmooth35, if you want to shoot the Hevishot, put out the extra $$ and get the Rhino. The Hevishot shooters seem to be getting great results with it.