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A question on my 1912 DWM....
What is the number, 8,84 on the barrel below the serial number.
http://www.fototime.com/{27CEF8BC-99...D}/picture.JPG |
The marking is the inner bore diameter, and I think it is land to land.
From a previous posting [quote]the 8,82 indicates the bore diameter or the distance from the top of one land to the top of an opposing land...<hr></blockquote> So you will see 8.83, 8,82, etc on guns. |
I think I have it figured out. 9MM bore is .354 and if I multiply .884X4 it comes out .3536 so the number is the bore size....
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The 8.84 mm is the lands diameter, like Ed said and converted to inches is 0.348" A .355" diameter bullet corresponds to 9.017mm groove diameter. The multiplier is not exactly 4 it is 1/.254=3.937 When you show these diameters to 3 decimal places, you also need to use the multiplier to that many places also.
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p.s. Europeans use a "comma" whereas we Yanks use a "period" in their metric measurements...
Regards, Pete... <img src="graemlins/yltype.gif" border="0" alt="[typing]" /> |
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