Us older coots should remember the pistol cartridge gas prices, I do. .30, ..32, .38, .40 (not invented yet), .41, .44, and .45. As Husky said, get ready for the British double gun caliber price correlations. On a side note, I have been on the highway a bunch yesterday and today, and according to my engine computer, I averaged almost constantly, 24.0 miles per gallon in my Jeep. Does that mean that a .240 Weatherby is in the picture somewhere. MM