cutting and crowning a barrel

[Wv_mingo327]

I chamber and thread rifle barrels for unmentionables at my shop. Here's a pic of how I setup and indicate before I cut on a barrel. Your machinist will understand. View attachment 363183View attachment 363184

thank you for this as he is very knowledgeable in his field it’s just a rifle barrel is gonna be new to him which he did make clear up front to me , this will be a wonderful help i am considering some of the easier things i may be able to try after ready several of the comments here. that why i love this group as you members with the experience for this kind of work will freely help us that are getting into unsure territory in our journey.

 

[Wv_mingo327]

I would try the least destructive method first. First clean up the bore - then shoot it if it does not perform well then cone it - then shoot it if it does not perform well then cut and recrown it.

i have cleaned the bore using the steel wool method and scrubbed extensively, i considered a lab as mentioned above. all this is still kinda new to me as fare as knowing what to try first to help gain accuracy.

 

[Wv_mingo327]

just wanna thank all of you guys for your help keep the comments coming as i work a full time job underground in the mines that’s why i’m late to reply sometime an this is kinda weekend project, sure wish i had more time as i really enjoy not only shooting but everything else that comes with the sport these old rifles. i’m gonna try my best to have this one cleaned up and grouping a little better for our opening deer season here in West Virginia on the 25th.

 

[Griz 54]

I would cut and crown that barrel. How a barrel lets go of the projectile is important. If coning it I prefer a much shallower job then I’ve seen done with the Joe tool. The barrel on the left is how I crown a barrel and load without a short starter. The other may work well but you can see the cone doesn’t go deep enough for your issue.
IMG_0421 by Oliver Sudden, on Flickr

I would do as Krisco Kid suggested and cone the barrell with a Joe Wood coning toll and recrown.

 

[Kmcmichael]

I would cone it.
I’ve did several before and after tests with the Joe Woods tool and can’t detect a difference from the bench.