Sidearms & Scatterguns Another Glock question
- Thread starter Jrb572
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^^^ What this guy said the reason is because of the coating on the barrels you will find some that will do it ( at a cost almost that of a new barrel) Lonewolf or again order another factory one. The first one shot great right? When it good why mess with it. Drop in a new one and happy shooting.
Also another thing is to recrown means to remove material from the barrel even somewhere near 2/10 of an inch to recrown (which isnt much at all for recrowning a rifle) but on a semi-auto pistol like a glock if you remove around that much material you run into the barrel not extending past the slide and when that happens. KATIE BAR THE DOOR because the first time you pull the trigger the barrel will more less hop up into the top of the slid as the bullet is leaving the chamber. You figure out how bad that would be.
If it really bothers you just replace the barrel both factory own and lone wolf barrels work well.
Do most of the other posters in this thread get a commission from Glock aftermarket barrel manufacturers?
Just how bad is this "nick" on the crown? If it's nothing too serious (and I doubt is is since you say that it still "shoots great"), just use a glass marble or chromed ball bearing of the appropriate diameter (around 1.5x the bore diameter) and some lapping compound to polish out the damage. I've done this several times on used and mil-surp weapons, and it works beautifully. Unless it's a really bad ding, there usually need not be any significant material removal - certainly not enough to impair function.
And as far as the finish is concerned, big fuckin' deal - the barrel is already damaged, so what's the problem with exposing a bit of bare metal? Just hit it with some cold bluing compound if it looks funny, and make sure that it's oiled after use to prevent corrosion. It's not like this area is usually exposed to any significant wear, and damn near every other type of pistol in existence functions just fine without any magic Tenifer/Melonite/nitriding of the crown.
Just how bad is this "nick" on the crown? If it's nothing too serious (and I doubt is is since you say that it still "shoots great"), just use a glass marble or chromed ball bearing of the appropriate diameter (around 1.5x the bore diameter) and some lapping compound to polish out the damage. I've done this several times on used and mil-surp weapons, and it works beautifully. Unless it's a really bad ding, there usually need not be any significant material removal - certainly not enough to impair function.
And as far as the finish is concerned, big fuckin' deal - the barrel is already damaged, so what's the problem with exposing a bit of bare metal? Just hit it with some cold bluing compound if it looks funny, and make sure that it's oiled after use to prevent corrosion. It's not like this area is usually exposed to any significant wear, and damn near every other type of pistol in existence functions just fine without any magic Tenifer/Melonite/nitriding of the crown.
Seems to me (the OP was a little vague and contradictory) that the pistol shot great previously. Then he nicked the crown and now it shoots poorly.
Recent Glocks are finished in a process that leaves them with a Rockwell hardness a few points harder than the old Tenifer. Breaking through that finish by the methods you describe would be difficult. If the nick resulted in any raised areas then the refinishing marble/BB/whatever would not sit centered in the hole and you would have an offcenter crown. Not what you want for accuracy.
The method you speak of does work though and can be a huge benefit to old battle rifles where the crowns are very damaged and the metal is relatively soft. I don't think it would be very beneficial in this case but the OP could always give it a shot.
Recent Glocks are finished in a process that leaves them with a Rockwell hardness a few points harder than the old Tenifer. Breaking through that finish by the methods you describe would be difficult. If the nick resulted in any raised areas then the refinishing marble/BB/whatever would not sit centered in the hole and you would have an offcenter crown. Not what you want for accuracy.
The method you speak of does work though and can be a huge benefit to old battle rifles where the crowns are very damaged and the metal is relatively soft. I don't think it would be very beneficial in this case but the OP could always give it a shot.
So the solution is to simply give up and throw away a $150 barrel instead of attempting to fix it with $5 in materials. OK, cool - you guys have it your way.
If I had the barrel in my hands, it'd have been chucked up in my lathe and fixed in less time than I've spent typing responses to this thread (carbide tools don't give a fuck about the Internet's conclusion that Tenifer is, like, the toughest finish ever). But even in lieu of such tools, silicon carbide lapping compound will do its job in this situation. Granted, it probably would be slightly quicker to whip out a credit card and buy a new barrel, but that's not the way I do things.
If I had the barrel in my hands, it'd have been chucked up in my lathe and fixed in less time than I've spent typing responses to this thread (carbide tools don't give a fuck about the Internet's conclusion that Tenifer is, like, the toughest finish ever). But even in lieu of such tools, silicon carbide lapping compound will do its job in this situation. Granted, it probably would be slightly quicker to whip out a credit card and buy a new barrel, but that's not the way I do things.
I'm not doing this for Internet ego masturbation, but rather to attempt to save the OP some money by not throwing away a barrel because it got a small boo-boo on it.
Look Bryant, everyone on this thread has tried to offer helpful advice on possible courses of action. The OP, having gained such advice (which includes yours) has the free will to make an educated decision of his own. NOBODY needs you coming in here with your panties in a twist and a bad attitude trying to accuse everyone else of being stupid because we wouldn't choose or recommend the same action as you did. There are ways to save money but skimping on gun parts isn't one of the methods I use.
Deuces.
I would have to agree with McCrazy. I am assuming that the OP does not have the tools or know how to fix this himself or he probably would have done that instead of posting here. A pistol smith will probably charge more than a new barrel just to recrown it and since buying a new barrel is relatively cheap and easy to do (with a Glock) that is the direction I would recommend. However once a new barrel is in hand there is no point throwing out the old barrel with fairly minor damage. Use it as a learning tool so that you can repair it as Bryant suggested, and if you do completely mess it up, well you already have a perfectly good barrel in the gun.
a picture of the damage would help determine what way to go with this. If it's not too bad, I'd just find one locally or find someone that is a machinist that can repair the damage...it's not rocket science, very simple fix.
you could get a piloted crowning tool and do it yourself...doesn't require a lathe
you could get a piloted crowning tool and do it yourself...doesn't require a lathe
Yes, a picture would be nice. I'm just curious how the barrel is so fragile that it got damaged to the point where it has hurt accuracy, but yet so tough that it completely defeats the use of normal repair tools and techniques 
For what it's worth, here is an OEM barrel for sale by a forum member:
http://www.snipershide.com/shooting/options-accessories-sale/181982-glock-20-10mm-barrel-new.html
For what it's worth, here is an OEM barrel for sale by a forum member:
http://www.snipershide.com/shooting/options-accessories-sale/181982-glock-20-10mm-barrel-new.html
One thing that happens to many of us is when we notice something wrong we tend to focus on it. Then if we have a bad day of shooting (just bad groups) we'll obsess on what ever issue we noticed. What ends up happening is a self- fulfilling prophecy...we make the bad shots happen.
I'd say, have someone else shoot the pistol, from a rest with accurate ammunition, to determine if it's you or the gun. You should shoot a group on one target, they should shoot a group on another target- side by side. If you end up with erratic groups- fix the barre (assuming the damage is small).
As mentioned, a picture would help.
As to buying another barrel-- so far, I don't see any reason why that would be necessary. That said, if you do get one, do not get a drop-in. Make sure the barrel you order will not fit the gun and have it properly installed by a competent gunsmith.
I'd say, have someone else shoot the pistol, from a rest with accurate ammunition, to determine if it's you or the gun. You should shoot a group on one target, they should shoot a group on another target- side by side. If you end up with erratic groups- fix the barre (assuming the damage is small).
As mentioned, a picture would help.
As to buying another barrel-- so far, I don't see any reason why that would be necessary. That said, if you do get one, do not get a drop-in. Make sure the barrel you order will not fit the gun and have it properly installed by a competent gunsmith.
