I CALEED HORNADY TECHS. ABOUT SHOOTING MY 100 GR. HORNADY INTERLOCK SPIRAL POINT IN A 257 WBY. VANGUARD SYNTHETIC STAINLESS WITH A 24 INCH BARREL ABOUT HOW MUCH FPS I WOULD LOOSE COMPARED TO A 257. WBY. WITH A 26 INCH BARREL. THE HORNADY TECH. STATED 25 FPS EVERY 50 YARDS. I WILL BELIEVE HIM BEFORE YOU!