I shot my Beretta PX4 at the range this morning. This is the usual patterns I went through in my shootings. I felt that all this time I was getting tired after so many rounds.

Then I thought that I still get my bead on the bulls eye every time so maybe it's not me.

My very first shot of the session, that was the norm in every session. The target is 8 yards down range. I'm shooting while standing in a two hand hold.



I shot five groups of 10 rounds with a small break in between. There you can see how it's drifting toward the left and then downward. It does that on every sessions.

Or is it really me? Fatigue in the hand maybe?

Down and left is either trigger finger or thumb grip... could very well be fatigue from tight grip.

there are better shooters here than I and I know they'll pipe up

I'm sure you're right. The more I see it the more I think my hand's tiring.