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Old 11-23-2012, 06:27 PM   #1 (permalink)
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Re Barrel help- what is the position of a sidetube feedport entrance?

I am about to re side tube and re barrel a KP2 i recently acquired and was wondering if anyone had the position of the sidetubes feedport entrance into the barrel? As in what degree it is at compared to the top or bottom of the barrel tubing? Thanks.
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Old 11-23-2012, 09:50 PM   #2 (permalink)
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i usually mill the slotting first, then eye ball it. should be around 90 degrees from the slotting.
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Old 11-23-2012, 10:17 PM   #3 (permalink)
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id say right around 100- 110* from the slotting
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Old 11-23-2012, 11:56 PM   #4 (permalink)
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I think anything over 90 would be more like a right offset feed like a cocker or nelson type marker. It looks like this barrel i have is not opened up as much as i thought so i should be able to measure it if i can. I was thinking somewhere around 60 degrees but its hard to tell.
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Old 11-24-2012, 12:06 AM   #5 (permalink)
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oh, yes your right, last few guns i made they were offset and i was basing my information on those. Sorry
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Old 11-24-2012, 02:53 AM   #6 (permalink)
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Since all three tubes are roughly the same size, the angle is going to be the same as one angle of an equilateral triangle, or roughly 60 degrees.
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Old 11-24-2012, 04:49 PM   #7 (permalink)
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Since all three tubes are roughly the same size, the angle is going to be the same as one angle of an equilateral triangle, or roughly 60 degrees.
Thats what i was thinking also but wanted a 2nd opinion before i cut some expensive tubing and had to swear a lot because i was wrong. Thank you for the input.

Last edited by crazyorigin; 11-24-2012 at 09:52 PM.
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Old 01-09-2013, 05:57 PM   #8 (permalink)
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Ok. I have finally got around to tackling this project. Measuring up the feedports entrance on my lathe using its spindles axis i come up with either 15deg or 75deg for the location of the hole for a sidetube. It is 75deg from its vertical axis and 15deg from its horizontal.
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