I have done a TON of choke installation. I have run into the first of its kind.
Rossi 3" 410 Barrel fixed choke. During Reaming of barrel 40 RPM Plenty of Tacki Lube, same as always. Hand hold barrel while reamer held by 4 jaw and back of barrel held by mandrel in live center.
What I have.
Remington model 11 20 gauge.
Had a Cutts choke on it. Long gone.
19-1/2” barrel. Face of bolt to end of barrel.
Need it crowned and threaded for extended chokes.
Who can do this here in Mississippi and what kind of money am I looking at.