I think the Bergers have a 115 that is about .470 or so. You get into the same dilemma that you have with the 270; lack of suitable rifles to shoot a bullet any longer. The 1:10 twist that you find on most factory barrels is just not going to get the job done. There is no point in making bullets in 25 cal that require an 8 or 9 twist when the target shooters have already exploited the 6 and 6.5 mm extensively. The good 25s out there are for existing rifles.
