Genuine Gunsmith fit barrels..

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Genuine Gunsmith fit barrels..

Post by Jerry Keefer on Fri Feb 12, 2016 4:11 pm

True blanks, no chambers, upper or lower lugs.. These are going to be single upper lug barrels..for Bullseye  Interesting concept initiated by Chuck Warner.. We have been shooting a one lug 45 since Sept. 15



Last edited by Jerry Keefer on Fri Feb 12, 2016 4:29 pm; edited 2 times in total

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Re: Genuine Gunsmith fit barrels..

Post by Wobbley on Fri Feb 12, 2016 4:14 pm

For what pistol?

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Re: Genuine Gunsmith fit barrels..

Post by Jerry Keefer on Fri Feb 12, 2016 4:18 pm

Wobbley wrote:For what pistol?
1911 in 45, 9mm and S&W 52/38

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Re: Genuine Gunsmith fit barrels..

Post by AllAces on Fri Feb 12, 2016 6:34 pm

What is the twist on the M52 barrel?

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Re: Genuine Gunsmith fit barrels..

Post by Blsi2600 on Fri Feb 12, 2016 6:45 pm

And the advantage is ??

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Re: Genuine Gunsmith fit barrels..

Post by Dr.Don on Fri Feb 12, 2016 7:13 pm

Jerry will have his own list of advantages.  But the main one to me would be you can have the twist you want, instead of the "standard" 16, which is not ideal in either 9mm or 38 IMHO.  This is of course way beyond what most of can do, even those of us with a bit of a machine shop.

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Re: Genuine Gunsmith fit barrels..

Post by Dr.Don on Fri Feb 12, 2016 7:16 pm

Jerry, I have long assumed (perhaps in error) that a standard chrome moly barrel blank is not hard enough for lugs.  Is that not true?  Do you do any heat treatment to the lug areas?

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Re: Genuine Gunsmith fit barrels..

Post by Jerry Keefer on Fri Feb 12, 2016 9:01 pm

AllAces wrote:What is the twist on the M52 barrel?
10 Twist

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Re: Genuine Gunsmith fit barrels..

Post by Jerry Keefer on Fri Feb 12, 2016 9:12 pm

Blsi2600 wrote:And the advantage is ??
Complete control of the machining process, which means, control of all C/L axis.. the barrel should be built from the bore C/L out.  The chamber can be single pointed to within several thousandths, and then reamed in a spider to attempt absolute concentricity. You can't do that with after market barrels..  The lugs, both upper and lower  can be controlled..All those will have one upper  lug.
Dr. Don, those complete 1911 blanks are in the mid 40s if I recall. The 52  is turned from a Douglas blank which carbide cutters were used.. It was hard on HS cutters..I am not sure of the RC on the Douglas but it is tough...   The lugs when fit tight between the breechface and slide lug really are not subjected to heavy wear, because nothing is moving under pressure.. 9 out of 10 1911s are running on the first lug.. I cut the lugs off my lady shooters 45 in Sept. and it has been running all winter like a Swiss watch.. ..


Last edited by Jerry Keefer on Mon Feb 15, 2016 9:22 am; edited 1 time in total

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Re: Genuine Gunsmith fit barrels..

Post by troystaten on Sun Feb 14, 2016 2:50 pm

Jerry you sure do some interesting and what looks like high quality work.  Thanks for showing us some of the projects you work on.

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Re: Genuine Gunsmith fit barrels..

Post by Jerry Keefer on Sun Feb 14, 2016 4:09 pm

Thank you Troy..
Here's a shot of the lugless 52 barrel.. It's coming along nicely..I enjoy the challenge of R&D
I am running out of time, so I stopped taking in work, so I could devote all my time to experimenting..SmileSmile


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Re: Genuine Gunsmith fit barrels..

Post by troystaten on Sun Feb 14, 2016 5:32 pm

A question for you, I know the model 52 is a really nice pistol with an excellent trigger but would a 1911 be a better platform because of the wide range of parts and frames available? 

thanks

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Re: Genuine Gunsmith fit barrels..

Post by Jerry Keefer on Sun Feb 14, 2016 6:09 pm

troystaten wrote:A question for you, I know the model 52 is a really nice pistol with an excellent trigger but would a 1911 be a better platform because of the wide range of parts and frames available? 

thanks
Yes, absolutely..

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Re: Genuine Gunsmith fit barrels..

Post by JayhawkNavy02 on Sun Feb 14, 2016 8:36 pm

Jerry, your a magician as always!   Can't wait to see the results!

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Re: Genuine Gunsmith fit barrels..

Post by Colt711 on Sun Feb 14, 2016 10:05 pm

Jerry,
Lugless: 45 barrels. Is there a (lower) pressure limitation on these brls? If so should they be stamped something like "mid range ammo only"? Just wondering. Oh and the advantage? Smoother operaration? Better repeatability?
Thanks.

Ron Habegger

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Re: Genuine Gunsmith fit barrels..

Post by Jerry Keefer on Mon Feb 15, 2016 12:22 am

Most modern high pressure pistols are one lug. 357 Sig is one example. It doesn't get much more high  
pessure than that.  Most 1911s are only fit to the first lug.  When fit tightly to the hood /breechface/upper slide lug the lock up is very strong. 
Our proto type has many thousands of rounds thru it with no ill effects. Some one lug slides may appear on the future. That will allow a larger area for radial lock up and perhaps tighter groups.. We shall see..

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Re: Genuine Gunsmith fit barrels..

Post by HenryA on Mon Feb 15, 2016 11:47 pm

You could make a limited run of those - especially the 9mm 1911...

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Re: Genuine Gunsmith fit barrels..

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