Tap sizes for chokes?

[TWBryan]

I was just wondering if anyone off hand knew what size taps were used to thread 12 and 20 ga shotgun barrels for screw-in chokes. I realize that there are different sizes used according to the wall thickness of the barrel. I checked the barrel of the 12 ga. I'd like to install chokes in and the O.D is .855 and the I.D is .728. I have access to a metal lathe and a large collection of taps and was wondering if one of the taps in my collection would be suitable.

Thanks

TWBryan

 

[mete]

I would assume they are special sizes.Putting in chokes, if the barrel is suitable, should be left tothose with experience like Briley.

 

[Preacherman]

I'm no gunsmith, but I've had chokes installed in several shotguns by a local gunsmith (who installs Hastings chokes). His taps for the job were all special-purpose ones, because the thread on the chokes was rather different from the standard taps. Don't know if this helps...

 

[Fred Fuller]

The folks at Colonial offer installation tooling as well as choke tubes. You might check with them...

http://www.colonialarms.com/catalog.html

lpl/nc

 

[TWBryan]

Thanks all for answers, I was able to locate reamers and taps for doing chokes at Brownell's . Unfortunately it would cost as much as a new shotgun ($300+) to purchase the tooling. The companies recommended probably do an excellent job,but their price exceeds that of a new barrel, it seems an economic catch-22. I suppose if I owned a high-dollar shotgun or was a involved in competition it would be a more reasonable expenditure. For now I will make do with what I have.

TWBryan