Need help with barrel issue

you don't want to do any cutting? what about recrowning it and fixing the last bit of threads if needed or even recrowning it down just past the screwed up thread? (no pun intended haha)

Hello Gunco,
I would recrown that muzzle in a lathe then use a metric thread chasing file to clean up the bum threads. Keep in mind that those 1.0mm threads are reverse pitched.

This isn't rocket science. It just takes a lathe and a metric thread chasing file.

VD

Re-crowning was what I was thinking about doing. I just don't have a lathe. I have the "chasing file" to use on the threads.

if you have a way to center your barrel through the hole in your drill press table you could get creative that way

edit: on the otherhand i'm sure a local machinist would recrown it for you for almost nothing or a 6 pack

Hello Gunco,
Brownells sells a neet little tool that recrowns barrels using a drill. It has a guide bushing to keep things centered nicely. Hey, their address is at the top of this page !!! What a coincidence !!!

VD

Bob -- send it to me. I'll lathe the end off and re- thread it.

Winn R said:

Bob -- send it to me. I'll lathe the end off and re- thread it.

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You may not want to take any length off or he'll have to deal with it being an SBR. You could counter-bore it about 1/4" and that would take care of it.

my 2 cents on this is : u are going to need to cut at least a little
if u take your micro meter and measure the barrel diameter u will see that the dimple may have made your barrel mushroom. this is not good for rifle or tolerance.

i know it's a bummer but cut rethread and re crown that is the way i see it

Yes -- we'll have to measure it.

Viper Dude said:

Hello Gunco,
Brownells sells a neet little tool that recrowns barrels using a drill. It has a guide bushing to keep things centered nicely. Hey, their address is at the top of this page !!! What a coincidence !!!

VD

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I have one of these tools, they work great. I wouldn't worry about the overall length if your only removing material to where the damage starts. If you start by lopping off an inch and rethreading then I might worry, but only removing what you need there shouldn't be an issue when the muzzle device gets reinstalled.

Brownell's also has a hand-turned crown cutter that uses a pilot to center it. I have one, and it works fine for stuff like this.

riflecrankdotcom said:

Brownell's also has a hand-turned crown cutter that uses a pilot to center it. I have one, and it works fine for stuff like this.

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I have one of those too. Worth every penny. Unfortunately, in this case just re-crowning may not work. Counterboring may be the only option, if removing material from the end of the barrel drops over all length too close to 16" for comfort (I like to leave at least 1/8" extra on all of the barrels I have, for my own peace of mind).

I will get in line,Send it and I will fixer up ..Pat

I was going to say send it to me but I see you got it handled.

It may need to be counterboared some as the barrel end may be distorted but you will only have to remove the damage on the end so you will not lose much length. the barrel is measured to the bolt face BTW

From the looks of it, we'll probably not lose an 1/8". I'll see when it gets here.