Mike installed screw in chokes for me in a Browning Model 42 .410.

The work was done correctly and four choke tubes furnished for about $130 if I recall correctly.

Shipped to him on a Monday and received back on the following Wednesday.

I'll use him again for any choke opening or choke tubing that I need. Most issues with Mike that I've read about involved work other that internal barrel work - lengthening forcing cones, opening chokes or installing choke tubes.