Jug Choke Info

[loud-n-boomer]

I am building a 10-bore New England fowler and am going to jug choke the barrel. My question is what angle/taper should I cut on the breech and muzzle ends of the jugged section? I am thinking that it should taper at about 0.030" per linear inch of barrel, but that is purely a guess.

 

[Flintandsteel]

Let someone who knows jug chokes do your barrel.
If done right, a jug choke works very well. But can ruin a barrel if done wrong.

 

[loud-n-boomer]

Since I am a reasonably capable machinist and I own a Monarch 10EE toolroom lathe, I would like to do it myself if I can get information on the appropriate geometry to use.

 

[Flintandsteel]

Well, most of us here are not machinists, so the specifics evade us. That’s why I suggested letting someone els do it.
Again, I’d suggest contacting someone who knows how,
There are several recommendations on those who do jug choking.
Lowell Tennyson, Bobby Hoyt, many more.

 

[Norman Brooks]

Good luck, I have asked about jug chokes and got no real answers. Must be top secret.

 

[Comfortably_Numb]

There is a book somewhere that gives the specs. I have no idea which book as I pay other people to do those sorts of things. I'm no machinist!

 

[harleysboss]

I did a search just now on my I phone. Typed in Jug Choke. There was a post from years back on American Longrifles forum. Looked like maybe the info you seek may be somewhere in those series of posts. I’m not a machinist so I sent mine out for the work. I respect your wanting to do it yourself. Hope this leads you in the right direction.

 

[loud-n-boomer]

Thanks to all for the leads. Once I have some answers I will repost them here in the hopes that it will help someone else.