Plus , ( 100 to 115 grn bullet ) . 25x45 in AR15 .. if loading the heavier/longer 100-115 grn. , fitting in a AR15 magazine dimensions . he will disappointed with losing FPS.Vel. , With the restricted COAL of the AR Magazine, when you having to seat Longer bullet Deep in Case, and eating up usable powder volume .You don't need heavier than the 87's for goats. (and try the 85g Ballistic Tip). Another .25 favorite of mine for Antelope is the 90gr Sierra Hollowpoint. This is a game bullet (not a varmint bullet) with a stout jacket and has served me well now for over 50 years.