RE: Choke tube v.s. Shot Size?
Its hard to get a choke to shoot the heavyer shot. I'worked on this for years and have used a Number of chokes from Hastings,Comp-n-Choke,Remington, and it was hard to find one that would hold a pattern with #4. I went to a Gun smith here in TO and had them build a Choke to shoot 4's and 5's He came up with the .660 Precision Choke. Its wirth every dollar. I have a photo of a shot pattern of 4's if you would like to see it...BT
I like them with Long Sharp Spurs....