Interesting; thanks. I was wanting the 1:12, hoping it would stabilize and shoot accurately the 53 or 60 grain V-Max and preferably through one of those 112 .220 Swifts (found one reasonably priced, but don't know the rate.)
Maybe I'll just get a Cabela's 12FV in .22-250 for now, and if it won't shoot either of those above bullets very well I won't be out that much $. Can always screw on a different barrel in a different chambering or twist later.