40x with 22 250 barrel chambered for .22lr. I have a 1/14 twist barrel that is a varmint 26" 22 250 remy 700. I am trying to figure out if this barrel will stabilize 40 grain cci standard velocity. What concerns me if the grooves in the barrel will work for the 22 rimfire. Also I want to put this in a mcree chassis. How will the conversion magazines work. I see stiller has a 25x copy of the 40x, this may be the way to go. If this could work out, it will feel exactly like my .243 and .308. I know alot of stuff is here, any help would be appreciated.