February 17, 2000, 11:07 AM | #1 |
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Join Date: January 3, 2000
Location: Mills County, IA
Posts: 410
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Just wonderin. Does anyone have the ID measurements for all chokes and including the ID of a 12ga.? Maybe post measurements for 20 ga. also if you're feeling energetic. I'm curious as to which is the closest to a straight bore.
------------------ bullet placement is gun control |
February 17, 2000, 01:01 PM | #2 |
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Join Date: January 20, 2000
Location: Oak Forest, IL
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From my understanding, the Cylinder choke is the same as a straight bore.
Chokes are also more than just a change in ID. Some chokes will just taper down (conical), some will step down (beginning and end of choke cylindrical, middle part is conical). There may be other choke geometry I can't recall at this time. ------------------ "Ray guns don't vaporize Zorbonians, Zorbonians vaporize Zorbonians" The Far Side |
February 18, 2000, 12:34 AM | #3 |
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Join Date: January 20, 2000
Location: Oak Forest, IL
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OK Muleshoe, I dragged out my Gun Digest Book of Trap & Skeet Shooting, so get ready to highlight and hit <ctrl>-V.
American Standard Bore & Choke Dimensions ____________12 GA_____20 GA Bore ID______.729______.617 Full_________.035______.025 Imp Mod_____.025______.019 Mod_________.019______.014 SK2_________.012______.009 Imp Cyl______.009______.006 SK1_________.005______.004 Cyl_________.000______.000 (there is also data for 10,16,28, and 410), but I'm not THAT energetic. The choke dimensions are choke constrictions. (Change in diameter?) Now, choke styles: Cone plus parallel (most consistent and even patterns) Cone Cylinder Spreader WHew, I have got just TOO much time on my hands. Jason ------------------ "Ray guns don't vaporize Zorbonians, Zorbonians vaporize Zorbonians" The Far Side [This message has been edited by jcoyoung (edited February 18, 2000).] [This message has been edited by jcoyoung (edited February 18, 2000).] |
February 19, 2000, 11:31 AM | #4 |
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Join Date: December 26, 1999
Location: Vienna, Il USA
Posts: 83
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Muleshoe:
all of the above #'s from joy...... work well but the ID goes out the window if the bbl has been back bored and Beretta as an example runs slighly tighter ID on a stock bbl. Browning, in their comp guns tends to run just a hair over. |
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