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#3 | ||||||
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BNP= Birmingham Nitro proof. .615= Chamber diameter. Crown over BP= Black power proof. 2 1/2= chamber lenght. Diamond 20= 20 gauge. 3 tons/sq in= Proof test pressure. Crossed swords with letters= Birmingham inspector date codes.
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| The Following User Says Thank You to David C Porter For Your Post: |
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#4 | ||||||
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I wouldn't see why the English proof marks would have much bearing on lowering the value of a gun like this. I would think finding a damascus barreled Parker with English nitro proofs would add to the value.
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"Where would a minister be without the help of sin, or the dry without alcohol?" Gene Hill Shotgunner's Notebook "May the honkers fly low and slow." Douglas Bandemer |
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| The Following 2 Users Say Thank You to Matt Buckley For Your Post: |
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#5 | ||||||
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Thank you gentlemen.
Going to shoot it some on Friday with my normal low pressure 3/4oz reloads. Assuming I can shoot it acceptably, this one my be headed off to Mike Orlen to have the chokes opened up for quail hunting. Thinking -.005" and -.010" The current chokes would be bird manglers even with my 3/4oz load. |
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| The Following User Says Thank You to Don Anderson For Your Post: |
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#6 | ||||||
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The gun was proved in 1963 (the Birmingham date code O B on lower left)
3 TONS proof is the standard for 2 1/2" chambers and would be for a max. service pressure of 9000 psi
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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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#7 | ||||||
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I had that done to a 20 ga. Sterlingworth Ejector about 5 years ago, by Dean Harris. I chose to go with .006" R and .016"L. I have been very happy with the gun on quail. My reasoning in having that much choke in the left barrel is that we get into wild birds here occasionally, and with the right conditions they just won't hold for the dogs long enough for us to approach. The others are early release birds, turned out in coveys in August. By October they often won't hold for you to approach the dogs, and bust out at the sound of leaves and grass underfoot.
When they flush "wild" a little extra choke is nice. I've never mangled a close bird with it. |
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| The Following User Says Thank You to Stan Hillis For Your Post: |
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#8 | ||||||
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A British shotgun proof rating of 3 tons/sq in (often seen as a "3 TONS" or "3" mark on older shotguns) equates to 6,720 pounds per square inch (PSI). Service pressure= 8939 psi.
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| The Following User Says Thank You to David C Porter For Your Post: |
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#9 | |||||||
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Quote:
It looks like the silver inlay on the stock has a very faint "Winston Churchill" engraved.....ha ha .. kidding. If these old guns could only talk. I load 12.9gr of Green Dot behind 3/4oz of 7 1/2s that is listed for 8700 PSI so I should be good to go. |
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#10 | |||||||
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Quote:
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| The Following User Says Thank You to Don Anderson For Your Post: |
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