I've had a pair of 270's that both killed like lightning bolts. They both did it with ONLY 1 shot each time. A good soft point bullet, not even a "premium" 130 grn bullet did it. I usually make neck shots unless I don't have a rest for the gun or the shot is really long in which case it is a shoulder/lung shot. Sounds like you may be flinching and pulling your shots like someone else suggested. You have plenty of gun in the 270.