If you shoot hundreds of 115gr at the target range, how much different will it be to shoot 147gr? I am using Winchester White Box 115gr FMJ for target practice, but am looking to get some Winchester Ranger 147gr HP ammo for defense. Due to the steeper cost of the Ranger ammo, I wouldn't shoot it at the range as much, so I am concerned that I wont be as accustomed to the way the heavier weight performs. I can get the Winchester White Box FMJ in 147gr...would that be a better idea so it will perform to the same weight in HP? Or is the difference between the 2 weights negligible?