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Author Topic: Jug Choke  (Read 3900 times)

Offline Pete G.

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Jug Choke
« on: June 22, 2013, 05:26:21 PM »
Anyone ever used the expandable reamers from Brownells to put choke in a barrel? Seems like a relatively straight forward procede, but I'm sure there are pitfalls, just like most other things associated with this sport. Other than working slow and measuring often, what else should I watch for if I decide to pursue this?
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Offline Robby

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Re: Jug Choke
« Reply #1 on: June 22, 2013, 06:29:59 PM »
Pete, I did a few barrels with that method. It takes a while, but I figured in the end it was faster than making a tool for the job. I put marks on the stem of the tool indicating the limits of travel in, out and center of the hone. Staying mostly in the center and drifting fore and aft, for a fairly smooth transition. It worked great and really tightened up the patterns with no noticeable affect on shooting round balls.
Robby
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molon labe
We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution. A. Lincoln

Offline Pete G.

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Re: Jug Choke
« Reply #2 on: June 28, 2013, 01:32:59 AM »
Thanks, Robby. Sounds like what you are describing is a honing process. I did a cut off shotgun barrel like that once. You are right; it takes a while.

The tool I am talking about is an expandable reamer with blades. They cut the barrel steel and then you follow up with a hone to smooth the reamer cuts.
« Last Edit: June 28, 2013, 02:21:01 PM by Pete G. »
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Offline Robby

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Re: Jug Choke
« Reply #3 on: June 28, 2013, 12:55:41 PM »
My mistake Pete, I misread your post. Yes, I was using the honing device that Brownells sells.
Robby
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molon labe
We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution. A. Lincoln

Offline Longknife

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Re: Jug Choke
« Reply #4 on: June 28, 2013, 03:48:10 PM »
Pete, I have not used the expandable reamer that Brownell sells but in looking at the instructions it  was designed to open up existing chokes and not cut jug chokes. I would think that it would leave a step at the beginning of the jug and at the end of the jug that will be very hard to remove with a hone.  If I were to try to jug choke with it I would remove the cutters and grind a taper on each blade and then sharpen and hone them.  The leading taper (the one closest to the breech) needs to be longer than the choke (muzzle) taper. I can not tell how much to grind off without having the tool in hand and taking measurements.....Ed

 
« Last Edit: June 28, 2013, 03:49:29 PM by Longknife »
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Ed Hamberg

Offline Hungry Horse

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Re: Jug Choke
« Reply #5 on: June 28, 2013, 03:59:41 PM »
What Ed said times two!

                Hungry Horse
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Offline Pete G.

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Re: Jug Choke
« Reply #6 on: July 02, 2013, 02:32:16 AM »
Thanks for the heads up.
The expandable reamer captures the ends of the blades and the adjustment comes from tightening a nut towards the end. The expansion comes from the blades being bowed out, so I don't think it would leave a ridge, but better safe than sorry. Brownells has an excellent technical department, so I think I'll discuss it with them before I dive on in.

I'll keep you posted.
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