Do you know about the Skychief load? It sounds out of whack but will tighten your pattern considerably, it has for everyone who tried it, myself included. You roll a 1/2" cushion wad in olive oil and put it over your shot, you would think the wad would blow your pattern but it does the reverse. Skychief is the handle of a guy on the M/L forum who was experimenting and came up with this odd load.
27 yards, 1 1/2 oz of #6, 90 gr of 1F, my gun is jug choked but done poorly and never shot a good pattern until I tried the Skychief loading procedure.
I had two barrels jug choked by Caywood, I sold one to a friend and kept one. I should have kept the other one, my jug was poorly cut, his was perfectly cut. With a skychief load his 40 yard pattern looks like mine at 27 yards.
