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Visit Drew Hause's homepage! | |
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#73 | ||||||
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It does appear that Coxe was simply converting tons X 2240 to derive psi.
From “Smokeless Shotgun Powders: Their Development, Composition and Ballistic Characteristics”, 1927, a DuPont Oval Pamphlet, p.20. Dram Eq. is listed on the graph as 3; charge was 1 1/4 oz. Pressure is expressed in Long Tons. Using Burrard’s estimated Tons Lead Crusher Pressure (Cp) conversion to PSI (pound force per square inch): (Cp x 1.5) - .5 = TSI; TSI X 2240 = PSI in BLACK IF Coxe was simply converting Tons X 2240 to estimate the PSI in BLUE and is compatible with other 3 Dr. Eq. published measurements (+ 10-14% for modern transducer numbers) Ballistite maximum pressure at 1” was 4.9 Long Tons = 15,344 psi (by Burrard) or 10,976 psi Schultze at 1 3/4” was 4.5 Long Tons = 14,000 psi or 10,080 DuPont Bulk at 1 2/3” was 4.1 Long Tons = 12,656 psi or 9,184 FFFg at 1 1/2” was 3.8 Long Tons = 11,648 psi or 8,512 DuPont Oval at 2” was 3.5 Long Tons = 10,640 psi or 7,840 I wish he'd just used the Tarage table for psi instead ![]() Or maybe he did, and for some unfortunate reason chose to express the numbers as Long Tons?? The BLUE psi numbers are similar to “Smokeless Shotgun Powders: Their Development, Composition and Ballistic Characteristics”, 1933. The pressure curves (PSI by LUP) are also for a 3 Dr. Eq. 1 1/4 oz. load (+ 10-14%) DuPont MX = 9,800 psi DuPont Bulk = 9,600 psi FFFg = 9,000 psi DuPont Oval = 8,700 psi
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http://sites.google.com/a/damascuskn...e.com/www/home Last edited by Drew Hause; 07-12-2018 at 12:35 PM.. |
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#74 | ||||||
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Interesting that a statement was made that live bird shooting was dead by 1900. Later in the thread a 1910 shoot was described. Also interesting that my grandfather did not close his bird ring in Hazleton until 1927, two years before his death. I am still shooting the barrels from Captain Money's 1897 CH grade pigeon gun. However, they are now mounted on a later DH grade gun, but still active.
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#75 | ||||||
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The last Interstate Association GAH at Live Birds was in KC at Elliott's Blue River Park in 1902
http://www.trapshooters.com/threads/...-birds.208505/ https://www.trapshooters.com/threads...c-1900.824043/ Live Bird competitions continued long thereafter https://www.trapshooters.com/threads...gramme.825695/
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The Following User Says Thank You to Drew Hause For Your Post: |
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Pigeon guns | ![]() |
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#76 | ||||||
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Here are two Pigeon guns that are consecutive serial numbered, both with 32" Whitworth barrels marked pigeon gun. What is neat is one is a AA Hammer gun and the other is a AAHE. PGCA letter confirms both as pigeon guns, will have this pair in Sanford for display
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The Following 14 Users Say Thank You to Gary Carmichael Sr For Your Post: |
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#77 | ||||||
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Now that is one beautiful set! WOW.
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#78 | ||||||
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Gary, i am so glad to see that AAHE again, where it is now. Looks great, thank you.
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#79 | ||||||
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That pair of AA Parkers is probably the only ones in existence, consecutively numbered, one being a hammer gun the other a hammerless and both being Grade-7. It’s good to see that AAHE where it belongs.
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"I'm a Setter man. Not because I think they're better than the other breeds, but because I'm a romantic - stuck on tradition - and to me, a Setter just "belongs" in the grouse picture." George King, "That's Ruff", 2010 - a timeless classic. |
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The Following User Says Thank You to Dean Romig For Your Post: |
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#80 | ||||||
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Thanks all, Dean had a lot to do with me acquiring that AAHE picked it up for me, took several months to make the deal but persistence pays off, Gary
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The Following 2 Users Say Thank You to Gary Carmichael Sr For Your Post: |
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