Cutting down a heavy fluted barrel

SpeedDrop

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Minuteman
Jan 23, 2019
114
143
TX
Currently have a Howa 1500 chambered in 308 with a 20" heavy fluted barrel. Wanting to cut down to 16.5", but this will cut directly into the flutes and look like a gear shaft at the end. Has anyone cut a fluted barrel and threaded? Interested to see what that would look like or hear about negative performance results.
 
"heavy" is very subjective. I varmint contour barrel is considered a heavy profile, but its nothing to an m24/M40 or MTU contour. and a fluted varmint or sender type profile might certain not have enough wall thickness to cut back and thread