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12-31-2024, 02:15 PM
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This? The Parker Bros. Overload Proved stamp first appeared about 1925
 A Parker Service and Proof Load table was published in the 1930s and reproduced in the The Parker Story p. 515. 12g 2 3/4” shell service pressure was listed as 10,500 psi. Definitive proof used 7.53 Drams Black Powder and 2 oz. shot with a pressure of 15,900 psi. The pressure was no doubt measured using LUP and modern transducer values would be 10-14% higher, or more than 17,500 psi. LTC Calvin Goddard reported the same numbers in “Army Ordnance”, 1934. He wrote that Parker followed the SAAMI standards of that period: 13,700 psi proof, 9500 psi service for 2 5/8” chamber; 15,900 psi proof, 10,500 psi service for 2 3/4” chamber (by LUP) + 10-14% for modern transducer measurement.
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http://sites.google.com/a/damascuskn...e.com/www/home |
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| The Following 3 Users Say Thank You to Drew Hause For Your Post: |
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12-31-2024, 02:27 PM
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#24 | ||||||
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Yes
This shows up on my second Parker A 1928 12 ga I still don’t plan to use anything other than the lights rounds  Thank you |
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| The Following User Says Thank You to Clark McCombe For Your Post: |
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01-01-2025, 09:08 AM
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pardon my attempts to upload picture - not as easy as drag it over !Untitled.jpg
maybe this worked! now my questions is this a 2 grade ? meaning weight? and the rest of the markings? I really appreciate the patience of the members Happy New Year |
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01-01-2025, 09:25 AM
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A 2 frame 12 gauge with unstruck barrel weight of 3 pounds, 15 ounces.
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"Doubtless the good Lord could have made a better game bird than bobwhite, and better country to hunt him in...but equally doubtless, he never did." -- Guy de la Valdene (from A Handful of Feathers ) "'I promise you,' he said, 'on my word of honor, I won't die on the opening of the bird season.'" -- Robert Ruark (from The Old Man and the Boy) |
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| The Following User Says Thank You to Garry L Gordon For Your Post: |
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01-05-2025, 09:12 AM
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#27 | ||||||
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Good Morning,
Would there be a reason not to use the AA shells? They appear to be a very light load. I have used Would appreciate a comparison of the two. Thank You ! |
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01-05-2025, 09:41 AM
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This is old independent testing data. Winchester declines to share pressure data. FPS and PSI
AA ‘Low noise Low recoil’ 15/16 oz. AA12FL 980 6,200 Old AACF Xtra-Lite 1 oz. WAAL12 1,190 8,000 New AAHS Xtra-Lite Target 1 oz. AAL12 1,180 8,760 Old AA 3 Dr. Eq. 1 1/8 oz. Trap WW12AAP 1,200 9,600 Super-Target 1 oz. TRGTL12 1,200 10,440 Super Sport Sporting Clays 1 1/8 oz. AASC12 1,360 11,660 IMHO if barrels are unsafe with 1 oz. at 1200 fps loads, they are unsafe.
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http://sites.google.com/a/damascuskn...e.com/www/home |
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| The Following User Says Thank You to Drew Hause For Your Post: |
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01-05-2025, 10:20 AM
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#29 | ||||||
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It looks like then the AA low noise are ok?
They’re available locally to me for about $17 a box |
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01-05-2025, 12:23 PM
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Those are ridiculously light. I think you're over reacting.
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| The Following 6 Users Say Thank You to edgarspencer For Your Post: |
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Linear Mode
