I may have the answer! I just received the new Remington 2008 catalog. The .220 Swift, I thought would be the answer, same 50 grain bullet but just throw speed at it when compared to my .222 Rem. The new MODEL SEVEN PREDATOR in the catalog shows all rates of twist to be 1-9 1/8". This would solve the problem same bullet not faster but bigger. I only thought the fast twist was available in the .223 but here it is offered in .17 to .243. Including the 22-250. gun weighs in at 7#. Does anybody know how this gun shoots "out of the box". It sure is ugly as all get out but so is my 788 and that has been my most accurate gun I have had.