Tooling for screw in choke install in M500

[pull the trigger]

Hey folks. I'm looking for the tooling to ream and thread Mossberg 12 gauge barrels for screw in chokes. I have several to do, so I thought I'd try doing it myself instead of sending them all out. If you have some and are finished with them, lemme know. Thanks!!

[pull the trigger]

anyone?

[roysha]

PM sent.

[Ajax111]

What's the inside/outside diameter of the barrels?

[pull the trigger]

Outside is .855, inside is cylinder bore.

[longbow]

It is amazing what will turn up when you ask Google!

https://4drentals.com/product/12-gau...ke-tap-reamer/
https://pacifictoolandgauge.com/612-...reamers-nopix-
https://pacifictoolandgauge.com/612-...reamers-nopix-
https://www.brownells.com/tools-clea...style-tooling/

Renting would be far cheaper than buying unless you really want to own the reamer and tap for future projects.

Another option is:

https://feeds.brownells.com/userdocs...n-P199-213.pdf

They have a solder on choke tube adapter but you have to get the barrel turned to suit. The adapter is only $20.99 though so pretty inexpensive. Wouldn't work for O/U or side by of course.

If you do ream and tap by hand please post results. I have one of the solder on adapters that I have as yet to use but have been thinking seriously of renting reamer and tap. It is recommended that the reaming and tapping be done in a lathe but with the guide bushings it can be done by hand... not sure if results would be as good though.

Longbow

PS: Just found this which may be useful:

https://www.youtube.com/watch?v=yKtHk_tXuoI

[pull the trigger]

I know about the new units, just looking to save some money with good used. Thanks for the links.

[mlw270win]

Trigger here is a great video of a gunsmith reaming and tapping a shotgun barrel for chokes by hand. https://www.youtube.com/watch?v=yKtHk_tXuoI

[garrisonjoe]

Many fixed choke shotgun barrels have been made so thin that only one of the versions of "thin-wall" chokes will work well when boring out the old choke and threading the barrel. Briley's and Tru-choke versions of thin wall choke taps may be what you want.

good luck, garrisonjoe

[pull the trigger]

Thanks everyone, I've made a deal