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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Worn barrels: resell or recycle?
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<blockquote data-quote="bamban" data-source="post: 2306476" data-attributes="member: 17722"><p>For my friends I've done a few AR15 carbine barrels of varying finished profiles, the contours that suit their wishes. These barrels were salvaged from their shot out 20 inch service rifle national match barrels. </p><p></p><p>Shot out barrels in our service rifle competition world means losing X count at 600 yards launching single loading only 80 grain class bullets. These rounds are not your mag length type, mostly loaded with boat tail junction above the shoulder. </p><p></p><p>The barrels will still shoot the 69-77 class mag length ammo we shoot standing at 200 yards and rapid fire events at 2 and 3.</p><p></p><p>I do not worry about about timing the old gas port, I just drill, tap, and plug it with 8-32 set screw. The tapped hole is just enough to sink a 3/32 long ser screw. The old gas port just becomes a blind hole from the bore. Not an issue.</p><p></p><p>For chambering I use a carbide reamer for this purpose. The NM barrels having 12 inches of 1 inch diameter makes it convenient, just lop off whatever gets you you past the firecracking and cut a new chamber. Sometimes we even keep the old chamber just turn down the heavy section to mostly 0.850, and cut down the length for MK12 SPR 18 inch with rifle gas system. I've done all kinds of combo. </p><p></p><p>Sometimes I don't do the cutting, I will set up the older lathe and turn the barrel owner loose with my guidance.</p></blockquote><p></p>
[QUOTE="bamban, post: 2306476, member: 17722"] For my friends I've done a few AR15 carbine barrels of varying finished profiles, the contours that suit their wishes. These barrels were salvaged from their shot out 20 inch service rifle national match barrels. Shot out barrels in our service rifle competition world means losing X count at 600 yards launching single loading only 80 grain class bullets. These rounds are not your mag length type, mostly loaded with boat tail junction above the shoulder. The barrels will still shoot the 69-77 class mag length ammo we shoot standing at 200 yards and rapid fire events at 2 and 3. I do not worry about about timing the old gas port, I just drill, tap, and plug it with 8-32 set screw. The tapped hole is just enough to sink a 3/32 long ser screw. The old gas port just becomes a blind hole from the bore. Not an issue. For chambering I use a carbide reamer for this purpose. The NM barrels having 12 inches of 1 inch diameter makes it convenient, just lop off whatever gets you you past the firecracking and cut a new chamber. Sometimes we even keep the old chamber just turn down the heavy section to mostly 0.850, and cut down the length for MK12 SPR 18 inch with rifle gas system. I've done all kinds of combo. Sometimes I don't do the cutting, I will set up the older lathe and turn the barrel owner loose with my guidance. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Worn barrels: resell or recycle?
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