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-   -   Back bore to remove pits (https://parkerguns.org/forums/showthread.php?t=19297)

Bill Graham 07-04-2016 06:42 PM

Jack Rowe called is "striping" in a video series he did with Larry Potterfield.

Brian Dudley 07-04-2016 06:48 PM

1 Attachment(s)
Bill,
Yes, the breech was broached on even the V grade.

The "rays" would come out from the center of the bore.

See photo of an original VH 16g. There is some wear on this one, but it is quite visable on the one side.

Attachment 49204

Dean Romig 07-04-2016 06:55 PM

Quote:

Originally Posted by Bill Graham (Post 198077)
Jack Rowe called is "striping" in a video series he did with Larry Potterfield.

Okay... If they say so, I guess...


I've always understood that "striping" was the act of applying 'stripes'.





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Jim DiSpagno 07-04-2016 07:08 PM

Dean, I always thought cross hatching was a quail sitting on turkey eggs😂😂😂

Bill Graham 07-05-2016 09:17 AM

Quote:

Originally Posted by Brian Dudley (Post 198079)
Bill,
Yes, the breech was broached on even the V grade.

The "rays" would come out from the center of the bore.

See photo of an original VH 16g. There is some wear on this one, but it is quite visable on the one side.

Attachment 49204

Breech, but not the extractor?

Bill Graham 07-05-2016 09:20 AM

Quote:

Originally Posted by Brian Dudley (Post 198064)
Pretty good looking results for steaming. I am going to be trying some steaming instead of boiling coming up here real soon.

Thank you. This was my fifth barrel. I've never had tanks, so I went with steaming from the beginning of this educational experience. The first I heard of it was on the RustBlue.com site, which I happened upon when searching for solutions. One other their customers had constructed a steamed.

Dean Romig 07-05-2016 10:43 AM

The 'broaching' of barrel breeches on Parker guns was part of the precision machining process of 'squaring up' the barrels with the horizontal and vertical surfaces of the frame. I'm quite sure it was done to all grades.

Sometimes when guns are refinished or are simply being presented as "lightly used" the broaching marks are applied by other than a broaching cutter. I have seen a number of Parkers 'faked' in this manner.

A prospective buyer should be aware of what he is looking at.




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Bill Graham 07-05-2016 10:57 AM

Quote:

Originally Posted by Dean Romig (Post 198100)
The 'broaching' of barrel breeches on Parker guns was part of the precision machining process of 'squaring up' the barrels with the horizontal and vertical surfaces of the frame. I'm quite sure it was done to all grades.

I think we're talking about different, but related, things here. "Broaching" as you've described seems a structural process. What I was originally asking about was the visible evidence of the barrels having been broached; the marks on the breeech faces.

The process I learned about to apply these marks is done by using 440 grit to polish in direction, and then 400 grit polish in a different direction with a very thin backer to create the breech face "striping" effect. Faux broaching?

I trust the historical account that all Parker barrels were broached. Thank you for sharing that history. If that process created the markings in the picture that Bryan provided, then restoring the marks wouldn't be wrong to do as I finish up refinishing these barrels.

Here's another example from Mr. Dudley's site: http://bmdgunstocks.com/wp-content/u...5/IMG_8571.jpg

Brian Dudley 07-05-2016 10:57 AM

How could any machining marks be visible after the hand fitting of the barrels to the breech face of the frame?

The marks are done by hand after fitting, bluing and fine polishing of the breech face. Purely cosmetic in nature.

Broaching, striping, cross hatching... I am sure there are many other names used for this.
I had heard it referred to as broaching. But as dean suggests, technical broaching is a machining process. Who knows what this cosmetic pricess is technically called.

When i do this, i normally take the polish up to 1,000 grit and then use either that same grit or finer to put the marks on the breech.

Bill Graham 07-05-2016 11:01 AM

Yes, purely cosmetic. What I wish to confirm is whether or not Parker VH grade guns left the factory this way or not.

Brian Dudley 07-05-2016 11:03 AM

1 Attachment(s)
Yes. They did. As per my photo i posted above.

As a sidebar. Here is a 20g repro that i did this to on the breech.

Attachment 49206

Dean Romig 07-05-2016 06:10 PM

Thank you for confirming my statement by showing the Repro picture Brian.





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