Go to the hardware store and get an easy out, It's rather large, lie 3/4 inch. Secure the barrel in a pipe vise or between 2 pieces of soft wood, the barrel will want to spin and you don't want to torque it, obviously. Tap the easy out in a and it ]'ll spin the choke out - I've only had one or two chokes tubes that were salvageable but every barrel wa ready for a new choke. Chokes are thin walled so don't "drive it it" just tap until it stops then spin it out.
