AmericanLongRifles Forums

General discussion => Gun Building => Topic started by: hortonstn on July 09, 2020, 08:09:21 PM

Title: Barrel tennon location
Post by: hortonstn on July 09, 2020, 08:09:21 PM
42 inch colerain barrel is it ok to only install 2 barrel tennions I'll probably solder them on
The waist sure looks thin I'd hate to ruin a barrel ?
Thanks
Title: Re: Barrel tennon location
Post by: E.vonAschwege on July 09, 2020, 08:19:09 PM
On a 42" barrel I would go with three tenons minimum, and sometimes do 4.  If you do three, place one roughly 3" from the muzzle, 8-9" from the breech, and split the difference, which should avoid the narrowest part of the barrel.  What size is the bore and how heavy is the breech and waist?  Dovetails don't need to be any deeper than about .04" for a rifle barrel, and I usually run them shallower yet.  Soft soldering is fine if you're not confident in your dovetail abilities. 
-Eric
Title: Re: Barrel tennon location
Post by: rich pierce on July 09, 2020, 09:21:19 PM
2 is not enough. I dislike the stock kind of flexing vertically, which it would do with just 2 underlugs.
Title: Re: Barrel tennon location
Post by: hortonstn on July 09, 2020, 10:35:06 PM
Thanks it's a c weight 54 I'll go with 3
Title: Re: Barrel tennon location
Post by: FALout on July 11, 2020, 04:57:20 AM
C weight barrel will be no problem , just use Eric’s suggestion on placement and you’ll be fine.
Title: Re: Barrel tennon location
Post by: TonyM on July 11, 2020, 06:33:51 AM
If using only 3, please layout your thimble locations also. Be sure the middle thimble misses the middle tenon. Moving the tenon an inch either way of center between the front and rear usually works.
Title: Re: Barrel tennon location
Post by: flehto on July 11, 2020, 05:21:53 PM
On 42" and longer bbls, I use 4 bbl lugs......all are dovetailed except  sometimes the lug at the waist is soldered on w/ an "A" weight bbl  w/ a max bore. Why skimp on the number bbl lugs...they're easy to install.....Fred