Glazed Barrel

JP65

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An old topic, but thought I would revisit.
Yeah..... I know..... this topic was debated. Some agree and some say they've never seen it.
Well just because you haven't seen it doesn't mean it doesn't happen.....just be glad you haven't experienced it.

Had a barrel sent to me, it used to be a "killer", customer was very happy with it. Then it laid down.
Engraving is good, chamber is good, no cleaning rod damage, good crown.......one problem!!
Push a slug thru it and it will pop out looking like it's been chromed and should be mounted on a sports car. Push 3 more.....the same results.

Looks like I'll be breaking out Bill's old lapping rod. Thanks Bill
Oh yes! I miss my friend.

I'll follow up and let you all know how it turns out.

JPatt
 
An old topic, but thought I would revisit.
Yeah..... I know..... this topic was debated. Some agree and some say they've never seen it.
Well just because you haven't seen it doesn't mean it doesn't happen.....just be glad you haven't experienced it.

Had a barrel sent to me, it used to be a "killer", customer was very happy with it. Then it laid down.
Engraving is good, chamber is good, no cleaning rod damage, good crown.......one problem!!
Push a slug thru it and it will pop out looking like it's been chromed and should be mounted on a sports car. Push 3 more.....the same results.

Looks like I'll be breaking out Bill's old lapping rod. Thanks Bill
Oh yes! I miss my friend.

I'll follow up and let you all know how it turns out.

JPatt
Howdy Jeff,

Please do follow up on this. If you can post some pics that would be great. I pushed a slug through a barrel awhile back and it just didn't look right at all.

Sorta chromed looking.....

I didn't get to examine any further and forgot about it.

So anything you post will be appreciated, I'm always looking to learn.

If my memory is right......Bill's favorite lapping rod was the one made for him by Bill Meyers.

Bill's 80th birthday would have been this month. I can't recall the day. I miss him, too.

Take care,

Greg
 
Hi Greg,

One has to be careful when de-glazing the barrel, because the rough barrel texture is present (rocky road) and you cannot lap enough to remove all the rocky road texture.....just enough to remove glaze and you can see the black oxide still on the slug. If one laps too much, obviously the bore size will increase too big and then you've lost it all.

Comparison picture posted...... I would like to see a little more black oxide on the slug.....but.....bore diameter is at it's max.
If you look carefully....you can see how smooth the slugs on the left are (no wax carrying scratches present), then look to the slug on the right.... you can see the difference. You can also see the difference when comparing the bullet wax serrations before and after. After de-glazing the serrations are back to original.

JPatt

Slug Comparison.jpg
 
Jeff will using Iosso on a bore mop help in deglazing? My barrel has about two cases fired and has pitting caused by the priming cpmpound also. Thank you, Les
 
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Do not use Iosso. It will have the opposite effect. It polishes the bore which will not allow it to carry wax
 
Hi Greg,

One has to be careful when de-glazing the barrel, because the rough barrel texture is present (rocky road) and you cannot lap enough to remove all the rocky road texture.....just enough to remove glaze and you can see the black oxide still on the slug. If one laps too much, obviously the bore size will increase too big and then you've lost it all.

Comparison picture posted...... I would like to see a little more black oxide on the slug.....but.....bore diameter is at it's max.
If you look carefully....you can see how smooth the slugs on the left are (no wax carrying scratches present), then look to the slug on the right.... you can see the difference. You can also see the difference when comparing the bullet wax serrations before and after. After de-glazing the serrations are back to original.

JPatt

View attachment 6347

Howdy Jeff,

Thank you very much, that helps. I need to push another slug or two through that barrel and compare them to your pics.

Thanks for the explanation as well. This is useful.

Take care,

Greg
 
Howdy Jeff,

Thank you very much, that helps. I need to push another slug or two through that barrel and compare them to your pics.

Thanks for the explanation as well. This is useful.

Take care,

Greg
Hi Greg,

Here's another comparison picture for you......
This is an Octagon....... Barrel presently on "Chisum"..... it was in my shop for evaluation, I de-glazed it (couple years ago).
JPatt

Chisum De-glaze slugs.jpg
 
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