[herschell]

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.

During threading: hold barrel in vise and hand thread using ptg tooling

While reaming the barrel the metal seemed gummy and would just grab. Not a uniformed ream. Then when threading instead of grabing the metal and threading into the barrel the threads would chip out.

Thought, to myself must be crazy. Try again another day. Cut back barrel, since now its too short. But repeat above steps. Same results

I have checked my tooling all sharp and new. Do you think there could have been something wrong with the metal alloy? Anyone else had any problems with a Rossi?

Thanks for the input.

 

[DEADEYE 1]

Sounds like something going on with the metallurgy of the steel on this barrel. One way to rule that out is if you have a old barrel laying around, you could test your tools.

 

[BIGJOE38922]

Agreed

 

[herschell]

Thank you.

 

[herschell]

I finally got a hold of the manufacturer. They stated that the metal in a non choked version of the single barrel 410 metal is softer than other barrels. The issue I came across was not unusual.