Thanks for the informative post Dfariswheel.
Having spent 25 years as a machine repair shop / job shop machinist, this is the part that hit home:
"On the skills part of gunsmithing, you have to be one of those odd people who get satisfaction from constantly trying to do a job better, and always thinking you could have done a better job."
.44 Special: For those who get it, no explanation is necessary. For those who don't, no explanation is possible.