Stone Cold - If your friend already reloads for you, and you are satisfied with how it shot this weekend, then talk with your friend about what equipment he uses to reload that ammunition for your rifle, and then duplicate the loads. I have read some books dedicated solely to bench rest shooting. I can't remember the last one, but it was titled "How the Benchresters Do It," or something like that. (for those out there that might have it, it is about 500 pages long, and kind of green/blue/black in color, soft bount). Anyway, that book is loaded with information that you would not be able to gather over the internet in a lifetime of trying. Handloader's Digest 18th Edition has an article dedicated to that also, "Are Benchrest Loading Techniques Worth the Trouble?" That article pretty much determined that it wasn't worth the effort for hunting grade ammunition.

Now, I ask you some more questions. And, don't get mad because I am, you started this thread, and people suggested some equipment that you would need, and you want us to "forget you asked," when we are trying to help you determine if it would be worth it for you to reload for "match grade ammunition."

So, here goes:
What is the primary intention of the rifle? What is your definition of"match grade?" The reason I ask - that Sendero will probably shoot 1" groups all day long every day with a handload that can be produced with an RCBS Rock-chucker kit, and a set of calipers and a Stoney-Point guage to get the bullet within, say .010" of the rifling. (heck, even .020" would probably work fine). So, do you plan to shoot matches with this rifle? Or do you just want a really accurate hunting rifle? Rockfish1 gave you a good list of equipment on top of a standard reloading kit that you would need to reload for maximum accuracy. But you have to really be wanting to spend the money. Also, if you are wanting to make a match rifle, you had best stick with match bullets, and plan to work up two loads if you want to use that gun for hunting also, which means twice the development, and twice the money in components, and twice the time involved. Now, you might get lucky, and get that RUM to shoot some 140 Nosler Partitions (a quality deer bullet in that cartridge, IMO), really good, and it will kill deer, but a 175 grain match bullet will be a very poor choice for deer at the velocities the RUM can produce!

Don't take all that the wrong way, but you asked, and I gave my opinion, and quite honestly, I know of some people that load for matches (USPSA 3 gun shoots, and single pistol shoots), and use nothing more that standard RCBS, Dillon (a little more expensive, but not overly priced), and other quality gear, without the REALLY fancy, smancy doo-dads that will get the neck of a chamber within .000001" of round, and do just fine!