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Posted: 2/9/2006 11:54:02 AM EDT
I want to cut a barrel to 16" but dont know how to restore the crown area, I have acces to a full machine shop, any body has a print or any info on dimentions and how to?
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Posted: 2/9/2006 6:39:14 PM EDT
[#1]
I normally face the barrel to an 11 deg. target crown, i then put a 45 deg. crown on the rifling using a specially ground carbide cutter. When i crown the rifling i pull the cutter out from the bore so as not to push a burr into the barrel. Dont just put the barrel in the chuck and start cutting. Take the time to indicate the barrel so there is NO runout. For best results use a 4- jaw chuck. A barrels I.D. and O.D. are not always concentric so take your time and do it right, good luck PATRIOT ARMORY 07 FFL
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Posted: 2/10/2006 4:50:46 AM EDT
[#2]
Big +1 patriotarmory223. Charles the Gunsmith.
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Posted: 2/10/2006 9:40:12 AM EDT
[#3]
+1 for what patriot said.
Also, make your crowning cutter have an extremely high relief angle for chip clearance. I cut my crowns straight and slightly recessed. 
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Posted: 2/10/2006 10:52:32 AM EDT
[#4]
Patriotarmory223 THANKS A MILLION your the man that is what I was looking for and AR15barrels great picture now is time to go and do it THANKS>.........
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