I try to get to the range at least once a month, more often if I have time. When I go I normally take my two carry guns at least and spend some time shooting both guns as if I am qualifying for my CCW. To warm up I toss between 50 and 100 rounds between my 380 and my 9mm.
What I have noticed is that for the first three or four magazines in each gun the 380 seems easier to keep in black on a Silhouette at both 7 and three yards. By the time I have gone through 6 magazines the 9mm is a bit easier to hit where I point. at 10 yards the 9mm is always the tighter group.
I was thinking it was less recoil at first but I am beginning to wonder if the sight plain being about 1/2 inch longer on the 9mm is enough to give it the advantage at 10 yards? Could I be on the right track? I can still qualify with both guns but maybe the 9mm has a more consistent trigger break? Just musing here.