Thanks, I appreciate the responses, and sorry of the long reply, but I figured if you know where I am coming from, it might help to understand what I want.
I have a CZ457 Manners MTR, that I was going to use as a "light" rifle, but I'm sour on it. The more I shoot it, the less I like it, to the point there really isn't anything I like about it anymore, except maybe the stock, but even that doesn't impress me and I'm not going to spend any more money on it. I'll probably sell it, let's just say it was a learning experience, I'm disappointed it didn't work out, but I'm done with CZ's after supposedly buying their best.
However, I am extremely impressed with my Vudoo, it was a Bartlein barreled action supposedly tweaked by Paul at Vudoo that I put in an MPA Pro2, Diamond trigger, and ATACR scope, and well, all I can say is, they put some magic in it, because it shoots groups that even surprises me sometimes (and I am pretty hard to please, I sold a Weatherby Mark V Apex 300 Win Mag last year because I wasn't happy. It only shot to it's 1 MOA guarantee, and I couldn't tighten it up, and I prefer 1/2" MOA for even my hunting centerfires). The VuDoo shoots well up into the "stupid tight" groups after I spent an enjoyable amount of time figuring out the barrel and stock harmonics, playing with ammo, and now, yeah, I'm actually pretty doubtful I won't find a repeating rifle to beat it, but I will try. The reason I don't go VuDoo again for a second winning lottery ticket is they don't exist anymore, at not least the way they were. However, I am more than impressed with it.
So I'm now I want a "VuDoo killer", and have a brand new RimX action, and nothing else. I have talked to Mike Manzella, a very well respected smith, and he is building me a barrel with the only guidance from me of "I don't care what barrel or weight you want to put on it, build me the best, most accurate barrel you can." So I'm not sure exactly what he will do, and I will leave it up to him, but I believe he is leaning toward the M24 with Eachus chamber, 22" or 23" and 16 twist. He mentioned I could also do a lightweight Kukrie profile as a second "lighter" barrel, but that's VuDoo-ish and I wasn't really wanting that.
My buddy who owns a local gun shop, chambers 22's and shoots PRS says I need a Proof Sendero with Nevious chamber that he wants to sell me, but I'm not sure I'm impressed with what I have read about Proof barrels.
So the problem is I don't personally know anyone who shoots rimfire benchrest, and in the back of my mind I keep thinking there is a benchrest barrel profile that is considered the gold standard. Although not a true sporter barrel, it would be in the .9 inch range, would need to fit the RimX action, and if the Manzella barrel doesn't outshoot my Vudoo, this second benchrest barrel at least would have a chance. Plus, maybe, it would be in a hunting weight, or at least weigh less than a truck axle. So I want a plan A and a plan B and I don't have a plan B except surf the web, and since the name of the Forum is "Accurate Shooter" that's why I came here.
So any and all help is appreciated to build my "Vudoo killer".