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-   -   Wall thickness relative to frame size (https://parkerguns.org/forums/showthread.php?t=24142)

Dean Romig 09-18-2018 01:01 PM

That may not have been the result of boring but rather the result of striking.

What is the length of the choke tapers?



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Garry L Gordon 09-18-2018 01:10 PM

Quote:

Originally Posted by Bill Murphy (Post 254002)
.020 "past the forearm" is definitely a sign that the gun has been fooled with. The scariest gun I have ever examined is the probably unique #1 frame ten gauge DH grade gun. It hasn't blown up yet, but the chamber walls are thin beyond description. It is factory original and is in the order book. It is #71767 as I recall. Look it up.

Just curious, Bill, if you remember, what was the wall thickness that you describe here as "thin beyond description"?

Mills Morrison 09-18-2018 01:47 PM

Quote:

Originally Posted by Dean Romig (Post 254024)
That may not have been the result of boring but rather the result of striking.

What is the length of the choke tapers?



.


Several inches, but I did not measure exactly. Seemed really long.

Dean Romig 09-18-2018 03:25 PM

When the choke taper gets up into the 6+" range I'll admit it does seem long. But that is very common on some Parkers.





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charlie cleveland 09-18-2018 03:31 PM

mills i believe that weight had something to do with thickness of the barrel...my light weight guns all have thin barrels....have not measured them but you can tell by eye that they are thin....charlie

Mills Morrison 09-18-2018 03:35 PM

Quote:

Originally Posted by Dean Romig (Post 254043)
When the choke taper gets up into the 6+" range I'll admit it does seem long. But that is very common on some Parkers.





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Could be 6, but I don't know for sure. One gun is 1889 and the other is 1906 or so. Very similar, despite basically two different Parker eras.

The variations in Parker barrels amazes me. They seemed to really know what they were doing though

Mills Morrison 09-18-2018 03:37 PM

Quote:

Originally Posted by charlie cleveland (Post 254045)
mills i believe that weight had something to do with thickness of the barrel...my light weight guns all have thin barrels....have not measured them but you can tell by eye that they are thin....charlie

You are right Charlie. It seems if they wanted to lighten the weight of gun, they made the barrels thinner.

Bill Murphy 09-19-2018 08:01 PM

We did not measure the wall thickness of 71,767.

Garry L Gordon 09-20-2018 08:34 AM

This information probably just confirms the obvious, but I have a GH 12 that has 30 inch Damascus barrels and is built on the #1 frame. It's unstuck barrel weight is 3 lbs 9 oz and the barrels weigh 3 lbs 2 oz. The gun weighs 7 lbs .55 oz. The chokes are .040 in each barrel and are about 4 inches long each. The minimum wall thickness at 9 inches from the breech is .047 for both barrels. This gun letters as weighing 7 lbs.

The barrel strikers could work wonders! Yes, these are factory guns, but when you look at the individual guns, they are much more like custom made than one would think at first glance.

Bill Murphy 07-21-2020 06:07 PM

Dean, we don't know, by measurement, what the chamber wall thickness is in the #1 frame ten gauge, #71767. However, this measurement can be calculated by knowing the pin separation and breech dimension of a #1 frame gun. The formula would be to know the breech dimension, subtracting the pin separation, dividing by two. Maybe another known dimension would be involved, but I think I gave us enough to calculate the wall thickness of the breech, at least at the outside.


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