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Parker 8900 |
04-22-2012, 07:39 AM | #53 | ||||||
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Parker 8900
The list of 11ga guns that I posted contains that top action gun. I think some one found it to be an entry error in our "Odd Gauges" discusion in Parker Pages.
I owned 8900 in the 1990's. It shows in the middle of a run of 12/30 inch guns in "Serialization. My notes show it to be .755/.755 cyl bores, with slightly short 12 ga chambers. Could that number be transposed? 7004 .756/.759 18122 .752/.751 The gauge surcharge was still present at 17448, as my lifter 20 carried it. Best, Austin |
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04-22-2012, 01:44 PM | #54 | ||||||
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Austin,
That data matches the measurements BIll Furnish and I got for S /N 8900 in the mid 1990's. WE concluded it was an 11-gauge gun with 810" diameter chambers, perfect for Brass 12A shells. Do you know if 46740 still exists and if the bores and chambers have been measured. I did not see the article you mentioned. Thanks, Richard |
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Parker Bores |
04-22-2012, 06:26 PM | #55 | ||||||
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Parker Bores
The Parker Story shows that there was an abrupt change in Parker barrels near s/n 70000. This figure was used in a Parker Pages article relative to this, and has been on the forum in the past. It is a frequency analysis of Parker 12 ga bore diamerters, showing the abrupt change with the post 70000 tooling.
The two large circles are from live bird guns; much similar to Super Foxes, but may have been post production re bores. Best, Austin |
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04-23-2012, 11:05 AM | #56 | ||||||
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The full-length taper: I have a 10 ga 1883 Colt that he's a choked modified right barrel and a full length tapered left. I have often wondered about why one would go to the trouble of a full length tapered bore? David
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04-23-2012, 11:56 AM | #57 | ||||||
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David,
That is interesting. I suspect that those early full length tapered bores were made during experiments to obtain improvements in choke. In the late 1860's and 1870's Parker, Greener and other makers were just learning about choking methods, and some of the very early Parkers had relief muzzle boring, while others had constrictions of different extent, contour and degree. Have you patterned your two barrels? Also did you do the measurements of the bores to determine the bore diameters were from chamber to muzzle. If so, I would be very much interested in learning the results. Richard |
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04-23-2012, 12:24 PM | #58 | ||||||
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Austin,
That plot is very strange. I would like to read the article where it was published. By the very definition of shotgun gauge it truly makes no sense. Did it say where the bore diameter was measured? It was well known long before Parker started making shotguns that a gun with a bore diameter of 0.740" to .751" is a tight 11-bore and .751" and above is a wide 11-gauge and should be proof tested accordingly. It seems to me that such over boring of the barrels would result in loss of pressure, permit escape of gasses around the wad, and reduce the shooting quality of the gun. Parker always prided themselves on making a hard shooting gun. I had always thought they abandoned production of eleven gauge guns by the mid-1870's. Why would they make 11-bore barrels for "12-gauge" guns? That is really wierd. Please give me the info about the Parker Pages article---maybe it gives some clues. Thanks, Richard |
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04-23-2012, 01:05 PM | #59 | ||||||
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My grade 0 underlifter S/N 8036 has chambers (3") that measure .810 as best I can measure with small digital calipers. The bore diameters are .744 and .746. I'm sure the chambers, forcing cones, and chokes have been messed with. The bore diameters are consistant from about 6" from breach to the start of the choke.
What do I have? Also, my 12ga TL S/N 27356 have chamber diameters of .810 and bores of .758. These are consistant with Austin's plot. |
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04-23-2012, 03:59 PM | #60 | |||||||
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Quote:
I use thin walled brass in both my 12 and 10 bores, with 11 and 9 gauge wads respectably. From what I understand about this topic, these dimensions are common for Parker guns of this vintage. I don't know when "modern" dimensions became the standard, i.e .729, .775 etc. for Parker guns, although Austin's chart gives us a pretty good idea. There is nothing that confuses me more about Parker shotguns than the 11 gauge discussion. According to some people's definition I own one, as do many others. I think the larger bore diameters are just common for early guns. Time to break open my copy of TPS to bone up on this topic. |
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