When someone ask me about becoming a gunsmith the first thought is " don't quit your day job". While I have been able to keep the bills paid I'm not getting rich and I don't have much overhead. A lot of the tooling I had before I went into gunsmithing full time. Probably have $15,000 tied up in chamber reamers but that was spread out over 20 years. Schooling will teach you the basics but getting experience takes time. I was sort of lucky, having a background of mechanic welder and machinist before I had to make a living as a gunsmith.