i have been loading and shooting Zero 180JHP bullets. I'm new to loading the .40 I've been using 4.6 grains of Win 231. Now, shooting at a target of around 30' feet away, all my shots seem to be low,left of POA. This from a Glock 22,23 and two XD's No issuse with 9mm,.38 or .45 loads. Could it be the load itself. I didn't have factory ammo to test against.But I remember these guns being more accuarte.