Choke Size question

[wadu1]

I'm one of them guys that tries them all, I have Pattern Master, Muller, Tru-Loc, Comp-N-Choke, Briley's, Kicks, Colonial, Carleson and Seminal. I stick with Carleson and True-Loc because they are consistent. 

[ducks4days]

Chokes work better or worse with different loads too. Switching to a different shotshell with the same shot size and same choke can open or close the pattern up a lot.

My favorite combo was an 870 with a Carlsons IM choke and Rio #2 steel.