Jug choke

[D. Taylor Sapergia]

Can anyone tell me how deep one should cut a jug choke? 

[Mike Brooks]

Depends on how tight you want it to shoot and what guage it is. You need to talk to Lowell Tennyson. 563 381 3711

[Bob Roller]

Is the jug choke similar to the Arkansas choke which is tight in the
middle and loose on both ends? ; .
Bob Roller

[WadePatton]

Is the jug choke similar to the Arkansas choke which is tight in the
middle and loose on both ends? ; .
Bob Roller

It's the inverse actually.

of course you likely know that. 

[Daryl]

Back in the mid to 3/4's through the 1800's, there was a choking system thought to make shot guns shoot "harder". The middle of the barrel was tighter than either the breech or the muzzle.
I think that is the one Bob was referring to.
As much or little as 3 to 5 thousandths will improve patters considerably.  That is all I lapped into the bore of that flint lock .44 smoothbore I had, Taylor. I did use a card on the powder,
then a .410 plastic wad and 1/2oz. 7 1/2's, then thin disk over that. Broke 10 straight with that little gun & won the rendezvous trap with it, against 12's and 10 bores. We were shooting
up at the first house on the trap range, for that event.

[Joe S]

Taylor -

The only useful discussion on jug chokes or recessed chokes that I have ever found is in The Gun Digest Book of Shotgun Gunsmithing by Ralph T. Walker. You can find this book for about $15 if you look around on the net. Walker uses the same choke dimensions for jug chokes that he uses for other choke styles. From page 157:



Walker also discusses other critical jug choke dimensions and methods of cutting the choke.

[Longknife]

Taylor, there was an article back in the 90's about Jug choking in MB. I read it with great interest and made my own jug choking tool which was slightly different than the one in the article and it worked pretty well. The shape and the length of the jug is also important.  I jugged my 12 gauge barrels at .10 imp. 18 mod and 25 full. ….Ed

[Daryl]

The end-barrel, that is, the section of barrel between the front end of the choke and the muzzle,
was normally thought best at the same length as the shot column.
This is the normal Euro choke model.