I finally got around to patterning my new choke tube. I'm shooting a Remington 870 3", a Hevi Shot Super Full tube (.650) I'm using Dead Coyote. I patterned it using my lighted sight bead which is almost exactly the same height off the rib as the stock bead. At 25 yards it's about 1 to 2 foot high, at 50 yards it's 2-3 feet high. The way it is I'm gonna have to aim at the coyote's feet in order to connect. What makes a gun do this? The last time I patterned it was with a Remington tube, an Extra Full, and it was about a foot high.
Is it because of the high velocity of the Hevi Shot?
Any comments would be appreciated. Maybe GC will chime in.