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Rifles, Reloading, Optics, Equipment
Gunsmithing
Bushing Bolt face?
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<blockquote data-quote="Kevin Cram" data-source="post: 273357" data-attributes="member: 2215"><p>Absolutely, Remove the original extractor and ejector. Set bolt up in the lathe with either a Labounty bolt fixture or a spud in the rear and a steady rest and dial it in true. Bore the bolt face out to .625" diameter but stay about .001" - .002" shy of the bolt face. Make yourself a bushing out of 12L14 steel that is .623" diameter and about .175" long with a .250" hole in the center. Clean the bushing and bolt face very well. I use STL 1205 Silver Braze from Brownells, it is a braze and flux paste. Put a little all the way around the outside of the bushing and set down in the bolt face. Heat with a propane torch until you see the paste turn to a lquid. It will bubble a little and then quit. Remove the heat and use a popsicle stick to hold the bushing down in place until the braze sets. Cool sowly under cold water. Re-set the bolt back up in the lathe and bore out for whatever bolt face diameter you need. You will then need to cut out for a sako or m16 style extractor. Sometimes the ejector hole will get semi covered by the bushing. Just set bolt up vertically in the sako extractor fixture and use a endmill to cut a small radius around the ejector for clearance. It's easier than it sounds once you've done a few.</p></blockquote><p></p>
[QUOTE="Kevin Cram, post: 273357, member: 2215"] Absolutely, Remove the original extractor and ejector. Set bolt up in the lathe with either a Labounty bolt fixture or a spud in the rear and a steady rest and dial it in true. Bore the bolt face out to .625" diameter but stay about .001" - .002" shy of the bolt face. Make yourself a bushing out of 12L14 steel that is .623" diameter and about .175" long with a .250" hole in the center. Clean the bushing and bolt face very well. I use STL 1205 Silver Braze from Brownells, it is a braze and flux paste. Put a little all the way around the outside of the bushing and set down in the bolt face. Heat with a propane torch until you see the paste turn to a lquid. It will bubble a little and then quit. Remove the heat and use a popsicle stick to hold the bushing down in place until the braze sets. Cool sowly under cold water. Re-set the bolt back up in the lathe and bore out for whatever bolt face diameter you need. You will then need to cut out for a sako or m16 style extractor. Sometimes the ejector hole will get semi covered by the bushing. Just set bolt up vertically in the sako extractor fixture and use a endmill to cut a small radius around the ejector for clearance. It's easier than it sounds once you've done a few. [/QUOTE]
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Bushing Bolt face?
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