Factory barrel is 26" and shoots mid to fast.  Draw back is that its a 9 twist, but it does stabilize my old 75gr A max out to at least 400 yds.  This question was admittedly for down the road a little ways.  I'm currently saving up to build a 22BR.  With a 22BR in the safe, I see not benefit to the 22 ARC.  Otherwise, the 22 ARC would make a lot of sense.  The reason for staying with a 223 based cartridge is the abundance of 223/556 brass that I already have on hand (and continue to accumulate), and a presumably straight forward re-chambering process.  I'm also waiting on a 20P upper to arrive.   Practically speaking, the 20P will make my 223 bolt gun somewhat obsolete because it will duplicate what I get with a 53gr v-max using less powder and less recoil.  Just kicking around ideas to give the rifle a little boost and keep it relevant.  The alternative is to sell it to fund something else, but I'm of the opinion that a person should not be without a bolt action 223.  They are just too versatile.  Worse case, I keep it for dispatching groundhogs and coons in the back yard, and work up a deer load for it that a young hunter could use during our youth season.  I'm not a fan of the cartridge for deer (our state just legalized them this year), but with the right bullet it would be fine for taking a nice doe.