Been looking for a 257 Roberts caliber rifle their not to popular and the ones out their are to high priced, got to looking at the ballistic of it and my 6mm Remington and their aint that much so am going to forget the Roberts and stay with my 6mm.
Tom W said:If you want one you'd best get one. It will haunt you for the rest of your life......
robertkirksey said:I would not worry about it. Think of it this way, the cases are each derived from the 7X57. No difference there. the bullets are 0.014" different in diameter and there is 0.0457 ounce difference in the most common hunting weight bullets. The 257has a SAAMI pressure of 54000 PSI (58000 for the +P loading) and the 6mm has a SAAMI pressure rating of 65000 PSI. This means the slightly smaller 6mm bullet will be traveling about 300 FPS faster at the muzzle. Do you think you or the game will know the difference?
chuck said:Been looking for a 257 Roberts caliber rifle their not to popular and the ones out their are to high priced, got to looking at the ballistic of it and my 6mm Remington and their aint that much so am going to forget the Roberts and stay with my 6mm.