I have an M&P 9c, and like many other people, I started out shooting low and left. I am improving, and I'm now mostly just left, and sometimes on target. I almost never shoot right. Should I continue practicing as it is, or should I adjust the rear sight slightly to the right at this point? I have Trijicon sights that were installed by the gun shop. What do y'all think?

You have to know where the sights were when the gun goes off.Concentrate on seeing the flame come out of the barrel and the front sight rise in recoil.
That way you will know if the bullet hits somewhere other than where the sight was when the gun went off...... or you pushed the gun off target before the gun fired, but after you stopped looking....

Untill you see a definite group somewhere else than at point of aim, you shouldn't move the sights around. If you find the majority of your shots are all left then bring your rear sight over some.

I agree with handgunner356 - practice until you are happy with your group size, then adjust your sights, then practice some more.

If your group is an 8 or 10" pattern, adjusting your sights never seems to move the pattern as you would expect. I'd say when your groups are 4" or less with no more that one flyer per group, it's prob time to adjust your sights.

Thanks for the help! I'll practice some more and then see if I need to make a sight adjustment. Just wondering....what size brass punch is used to move rear and/or front sights? Or is something else used to move them? It would be nice to avoid a $100 sight mover, if possible.

Are your Groups staying constant,(always to the left of your if P.O.A.) and all of your shots staying in a fairly close grouping?

With fixed sighted guns guns if you want to move your POI to the right move your trigger finger to the right. To move your POI to the left move trigger finger to the left. If that helps you are good to go; if not have an experienced shooter try your pistol and see what their POI is.
You may also want to experiment with different types of ammo, as this can make a difference in your POI.

Lots of easy things to try before you start to monkey with the sights.

Best of luck.

How does it shoot off a rest?

You really need to determine if it's the gun or you BEFORE you start moving the sights around.

Bob

Thanks everyone! I'm going to try finger adjustments and shooting from a rest before I start moving things around. The front sight (aftermarket Trijicon) looks the slightest bit off, but I can adjust myself rather than the sight, it'll be a whole lot easier!