I recently acquired an Ultralight .257 Weatherby to be used for antelope at distances from 100 to approximately 500 yards. In the past I've used a 25-06 and 115 grain Combined Technology Ballistic Silvertip bullets, with good success and no complaints. The most accurate load in my Weatherby, so far, is a load with 110 grain Nosler AccuBond bullets. I am getting 3/4 inch groups at 3450 ft/second. I have tried several loads with the 115 grain ballistic tip that shoot at around 1" at 100 yards, at around 3400 ft/second. Would I be making a mistake to settle on the AccuBond load? The ballistic coefficient, according to Nosler, is .418 while the ballistic coefficient of the 115 grain ballistic tip is .453.