Stan, thank you for your post. I also read of another individual testing 3/4oz loads in a 12ga. He said because the pellets in the bottom of the load were not deformed [ less set back ] the patterns were too tight at skeet ranges. He had to use fiber wads to open them up. I've opened up quite a few SxS's and the Remingtons seemed to have the longest total choke area - some were 7" with the last 1 1/2" parallel.
Years ago V.M. Starr wrote a small book about jug chokes. He use to shoot turkey shoots where the most BB's in a playing card would win. He used a muzzle loader shooting against cartridge guns and cleaned up - many competitors would not shoot against him. He opened up the bore 8" to 2" back from the muzzle leaving the last 2" parallel. This would allow him to still easily load the gun. I've done the same thing on guns when I wanted more choke. It works very well.
