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Double Rifles, Single Shots & Combinations >> Paradox and Bore Guns

gmark1
.224 member


Reged: 06/03/19
Posts: 8
Loc: illinois
Re: making progress
      29/03/19 01:34 PM

been a learning experience on this project. Thought about leaving the bore at 31/32", and calling it good. But upon closer inspection, I notice something interesting. The shaft was a chromed hydraulic cylinder shaft, which apparently was cold rolled. Upon drilling out to 31/32" with a long bit, and shaft extension, it was easy see in the bore, spirals all the way down the bore caused by hardened areas from the cold rolling. I couldnt imagine a big drill bit could walk like that for 26", leaving the bore looking like it had screw threads. So next step was a 1" reamer, which cleaned up most of the spiral oversize areas. Then an oversize 1" reamer to take out the rest of the spirals. Last step Im working on now it with an expanding reamer to final size the bore. Next barrel I make will be with hot rolled steel

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Entire topic
Subject Posted by Posted on
* size of a 4 bore barrel gmark1 08/03/19 10:13 PM
. * * Re: size of a 4 bore barrel DarylS   09/03/19 10:04 AM
. * * Re: size of a 4 bore barrel szihn   09/03/19 12:57 PM
. * * Re: size of a 4 bore barrel Longknife   10/03/19 04:22 AM
. * * Re: size of a 4 bore barrel szihn   10/03/19 07:07 AM
. * * Re: size of a 4 bore barrel Wayne59   10/03/19 08:29 AM
. * * Re: size of a 4 bore barrel Ash   16/03/19 10:02 AM
. * * Re: size of a 4 bore barrel Kynoch   24/03/19 03:36 AM
. * * making progress gmark1   24/03/19 01:03 PM
. * * Re: making progress Longknife   26/03/19 12:27 AM
. * * Re: making progress gmark1   26/03/19 10:25 AM
. * * Re: making progress DarylS   26/03/19 11:11 AM
. * * Re: making progress gmark1   29/03/19 01:34 PM
. * * Re: making progress DarylS   30/03/19 04:45 AM
. * * Re: making progress gmark1   30/03/19 01:09 PM
. * * finally finished gmark1   16/04/19 10:07 PM
. * * Re: finally finished Longknife   16/04/19 11:19 PM
. * * Re: finally finished gmark1   20/04/19 03:26 AM
. * * Re: finally finished Longknife   22/04/19 03:03 AM
. * * Re: finally finished gmark1   24/04/19 11:57 AM
. * * Re: finally finished Longknife   10/05/19 10:59 PM

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