I use Corelockts in my 25-06 and they grouped much better than the Federal 90 gr. which were shooting 1 inch groups [:'(] and Federal 150 gr. were shooting 1 1/2 in groups [] but the 100 gr. corelockts supposadly junk corelockt the cheap ammo shot a 3/8 in. group and totally out shot the other tested ammo I do not see why people say they are junk grouping like that