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-   -   How to recrown? (http://www.firearmstalk.com/forums/f33/how-recrown-73562/)

Mosin 10-02-2012 01:55 PM

How to recrown?
 
Hey all, I'm thinking about taking a few inches off my .22 barrel, then recrowning it. I've never done this before but have decided this rifle would be a good start for this project.
Does anyone know how to do this? Any advice, instructions, etc?...
Yes, I have access to a full machine shop.

masterPsmith 10-02-2012 05:53 PM

The barrel can be hand cut with a hacksaw.Then the best way to re-crown would be on a lathe, if you have one. You can also do it by hand with the proper tools, but would have to purchase them (not cheap). I would suggest you take it to a gunsmith to have it done, it would be cheaper and should be done right. If you want to check into hand tools, check for barrel crowning tools at www.brownells.com .

Jim........

hiwall 10-02-2012 11:27 PM

You don't really have to crown the barrel. You can de-bur it and that's enough(if you want). Barrels are crowned for looks and to protect the bore right at the muzzle. If you want to crown it then listen to masterPsmith. Midwayusa also has stuff for crowning.

Mosin 10-03-2012 12:11 AM

Like I said, I have full access to a machine shop. So i have a lathe.
Now, this just highlights my ignorance, but I thought a crown was for improved accuracy...

trip286 10-03-2012 12:17 AM

Quote:

Originally Posted by Mosin
Like I said, I have full access to a machine shop. So i have a lathe.
Now, this just highlights my ignorance, but I thought a crown was for improved accuracy...

I have no idea how the just for looks idea came about.

Crowning does help with accuracy, as a good target crown is designed to allow the gases to escape evenly around the bullet as it leaves the muzzle.

c3shooter 10-03-2012 12:18 AM

A crown provides an even muzzle, so that the gasses are not expelled more to one side than the other (pushes bullet off course), and protects that last little smidge of rifling at the muzzle from getting dinged up.

Instead of the traditional rounded over, some of my target rifles have a recessed "flat" crown, or a straight 11 degree recess at the muzzle.

Be sure you do bot drop barrel length below 16 inches, or you have other problems (with the ATF)

Mosin 10-03-2012 12:34 AM

Quote:

Originally Posted by c3shooter (Post 962117)
A crown provides an even muzzle, so that the gasses are not expelled more to one side than the other (pushes bullet off course), and protects that last little smidge of rifling at the muzzle from getting dinged up.

Instead of the traditional rounded over, some of my target rifles have a recessed "flat" crown, or a straight 11 degree recess at the muzzle.

Be sure you do bot drop barrel length below 16 inches, or you have other problems (with the ATF)

Yeah, it's a Remington 597. I'm looking to "revamp" her. Volquartzen trigger, new ejector (it broke, which inspired this project), and a new paint job. I figured I'd take a few off the barrel and recrown it. as well. I have lathe experience, just not on a barrel...

bearrwe 10-03-2012 12:54 AM

Mosin, check this out it will give you a pretty good idea of what's involved.
http://riflestocks.tripod.com/targetcrown.html

Mosin 10-03-2012 01:56 AM

Thanks bearrwe! That's pretty much what I was looking for... OFF TO THE LATHE!!!!!!

hiwall 10-03-2012 02:13 AM

actually I am totally correct in my statement above. cutting the barrel square and de-burring is where the accuracy is achieved. the crown is only for looks and and to protect that true cut on the muzzle. if you do not run the muzzle into rocks or other hard surfaces there is no need to crown.


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