my advise is you have to either get into it deep or stay out! I freely admit my addiction. I have more money tied up in Benchrest than in my first house! My machining is all because of shooting. My 14 x 40 grizzly lathe (with spindle bearing upgrades, 3 phase with vfd, DRO, buck 6 jaw with jaws edm'd off flush with chuck face for short barrels,) is mostly for chambering and making dies. My 9 x 42 mill is for fluting barrels and inletting stocks. I have a surface grinder that does a wonderful job of hiding my lack of machining skills.You BR guys... I'd love to try out that game, but for now have to content myself building a solidly sub MOA 7 lb hunting rifle or three that don't beat me up when I carry them all day! I have a trued up Rem 700 action in the safe that I hope to someday turn into a heavy varmint/light BR rifle, but not this year and not till I get a lot better with my lathe!
This whole thing started with my lifelong interest in hunting and shotgun shooting. I had a 22-250 that I thought was a shooter. There was a local club match that I went to watch. Seeing what those guys were doing and the groups they were shooting made me realize that I had work to do.
I bought a used custom gun and was hooked. Since that time, I have acquired all the machining stuff that I have. I also make my own jacketed bullets. I have both flat base and boat tail die sets. We (benchrest shooters) spend countless hours testing everything you can imagine. Things like firing pin fall distance, angle of the crown, freebore in the chamber, trigger pull, the list goes on to get the best accuracy possible. Just because the other guys find something that works, is no reason to believe it will work for you in your setup. You have to find what works for you. The greatest feeling of accomplishment is when you do well in a match (beating the guy you want to beat) with your own stuff - bullets, barrel, load. After you have the best equipment that you can buy or build, it comes down to gun handling and wind reading. Bottom line here is that bench shooters are proud of their equipment. They are eager to show you what they have and will also let you shoot their gun. (they want a new guy to join the community so they have someone that they can beat for a while.)