When I first fired my 45acp P220 with fixed sights at a silhouette I was standing alongside of soon to be LAPD cadet using a Beretta 9mm watching him pepper the target and when I checked mine I thought I was missing until I pulled the target and found where the 100 rounds had gone there was a 2" by 3" center mass opening in the target.Sigs are accurate to 50 meters according to an ex marine corps armorer/ police officer I met and they'll stay accurate after 50,000 rounds are fired thru them.