I bought one of the Rem 541X rifles from the CMP several years ago, but wound up selling it to a friend when I discovered the non-adjustable trigger pull was way heavy for target shooting. Wasn't all that fond of the stock's shape either. Replaced it with a CMP H&R M12, which I felt had a lot more potential accuracy than the Rem, along with an adjustable trigger that was easily adjustable for a very nice break at a light weight.
The M12's downfall was a stock shaped somewhat like a club, and since I didn't want to spend the time required to inlet & finish a custom stock for it (even though some nice ones were available at the time), I traded it to Mac Tilton at MT Guns for an excellent Anschutz 1611 prone rifle, complete with sights. Somewhere along the way, someone who obviously knew what they were about did an excellent job of bedding the 1611's action. Together with the awesome Anschutz trigger, a very comfortable prone stock with adjustable cheekpiece that just happens to have very nearly the same shape & proportions of the Robertson H&H prone stocks on several of my LR prone rifles, and excellent accuracy, this rifle fills the bill as a near perfect prone trainer. It'll easily clean a 20 shot string on the 100yd prone target when I do my part with Wolf match extra.
I also bought three of the Rem 40X & two Win M52Ds from the CMP several years ago, and although they're all pretty darned accurate - and much as I hate to admit it - the Anschutz will out-shoot all of them from bench or prone. One of the 52Ds was restored (re-finished stock, fresh crown, Kenyon trigger modification, Ken Viani scope base) as a target rifle, while the other one - which had a trashed stock & bbl, and whose bolt s/n didn't match the receiver's - got a new sporter contour Broughton match grade 22RF bbl, along with a nicely done sporter stock of highly-figured English walnut and another Kenyon trigger. This is now my most highly-prized 22RF rifle, and is an absolute tack-driver.
One of the CMP 40Xs (std. weight bbl, older action with 721-style bolt handle) is in the same shape as the poorer of the two 52Ds, and may very well lose its OEM bbl. & stock, and have them replaced with a Krieger bbl. and custom prone stock. Since the 40X action is so nearly the same as a M700, it's easy to find custom stocks for them.
Sorry for the long, drawn-out post, but that's how I aquired the two 22RF rifles that suit my needs.