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Old February 7, 2009, 01:18 AM   #14
Unclenick
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Join Date: March 4, 2005
Location: Ohio
Posts: 21,020
A half thousandth isn't much, but what was described was a taper that was 0.0005" wider at one inch growing to 0.0010" wider at 2", and perhaps wider beyond that? That would take a little more work with the paper, but it is doable.

cjw3cma,

It is standard practice in target barrels not to use the old military straight barrel form, but to have a dog nut in the muzzle region. In other words, the last half inch is full diameter, then behind that going toward the breech, it tapers down a hundredth of an inch over another eighth or quarter of an inch or so then keeps that narrower dimension for the rest of the tube length before the chamber body portion. This ensures free movement in the bushing without binding. If you want something more to do with your paper, that might be the thing.
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