Everybody and their dog makes bullets these days. Just looked in my load notebook. Haven't shot -06 in years so shouldn't comment on that, but for Whitetail with .270 I've settled on 130 grain Nosler Partitions over IMR 4350 at around 53 grains. Missouri Bullets makes some nice coated lead bullets for practice but I have not hunted with them.
You should have no trouble finding .270 components, not sure about -06. Handgun powder is another matter entirely. I load rifle on my old Lee single stage press.

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