Cutting your own barrel down...

[6.5savageguy]

$53 for the face cutter from Brownells, $20 for the case trimmer, $10 for assorted bronze rods.

Honestly, if you didn't care about a recessed crown you could just leave it flat and it would still come out fine.

Mine did! I cut a 6.5 Creedmoor down to 20" new years day. Sanded/filed it flat and barely touched it with one of those cone shaped stones in a Drexel.

Shoots 123s @ 2812, 130s @ 2715 & 140s @ 2610 other than the speed I don't think I hurt it.