- Mar 22, 2022
Learning lots, thanks to all.
It is my understanding that Ruger gets long rods from the steel mill via rail car, this is what they machine cylinders out of. It is heat treated at the factory, but I must truthfully say, it is VERY inconsistent! Hardness varies greatly, and there seems to be absolutely no rhyme or reason to this anomaly. I have been reaming and now honing cylinders for years, probably the 44 and 45 cylinders I have done are in the thousands.I should have been more specific. Cyls are not heat treated after reaming for a different cartridge. Cyls are not annealed for rechambering, the reaming does not affect the factory heat treatment, and therefore re-heat treating would only degrade the original factory heat treatment quality. Heat treatment doesn't have a depth of hardness, it's the same all the way through; it's not to be confused with case hardening. Rechambering reamers are sufficiently hardened and durable to be able to ream heat treated cyls.