Please, critique my shooting!!! 15 yards w/ Glock 26

Looks okay to me, I'm sure you could tighten up the head shots though with some snap cap practice. Also, Heres a tip correction chart, It might help you man. Just keep practicing if you can find any ammo! You'll be a dead eye!

http://www.silvercitygunclub.com/analysis.html

Certainly not shabby, and looks "combat effective" to me. Work on controlling the nature of your trigger pull (avoid abrupt pulling -- it should be fluid and use the "meat" of your finger instead of a joint).

+1 to the idea for snap caps. At the range with someone else practicing with you, load their mags with snap caps loaded randomly and have them do the same for your mags so you won't be able to anticipate when/where they are. When the round doesn't go bang, you can very easily see if you're pulling the weapon around anticipating the shot, and it will help you to become familiar with clearing a FTF quickly.

What the hades you shootin?! Martians?! Get yourself a man-sized target! Those would be good groups then! They only look bad because the "humanoid" target is the size of a pen!

Good shooting, and keep at the practice! Edit to add: Here is my target from my G26 on a B27 reduced-target at 7 yards:


By doc2005, shot with PENTAX Optio M10 at 2009-03-12

Geno
(Formerly Doc2005)

Not bad at all for 15 yards. The difference between the closer targets & this one could be the speed at which you're shooting. If you're shooting faster close-in & keeping the same hit quality you're doing pretty good. If not, you're probably not paying as much attention to your fundamentals as you were at 15 yards.

Anything low, low left or even some left can be attributed to anticipation/flinch. Those shots that are high are high because you're looking over the gun trying to spot your hits. Don't bother looking for them. The Zen of shooting is that if you stop worrying about your hits they'll go where you want them to go (credit to James Yeager). If this continues to be a problem cut out the middle of your target creating a negative target. Now you'll stop looking for your hits because everything should go through the hole.

Use the ball & dummy drills mentioned above (snap caps/dummy rounds mixed in your mag with live ammo) to help cure your anticipation & go visit Ron Avery's Practical Shooting Academy & print off the 1" dots. Paste that up to your target & from 3-5 yards shoot 1 to 10 rounds at each dot trying to get them all in the same hole. This will really narrow down your focus & help refine your trigger control.

Head over to Tactical Response Gear & pick up a copy of Shooting Missology. Lots of good info on how to properly apply the fundamentals.

Don't worry about the above linked target- there's too much going on there. The issues are front sight focus, trigger control, follow through & eliminating anticipation.

Your head shots are probably more strung out because, like you mentioned, you don't have a really distinct aiming point. Draw eyes on your next one & shoot for them. The forehead is amazingly tough anyway so the eyes/nose are your best bet for actually getting a round into the grey matter.

Tape should work fine unless it's the 10 rolls/$1 variety.
Your COM group is fine assuming 1 shot/sec. The head shot shows anticipation or pushing. Possibly a sight alignment issue due to the higher target. Try dry firing in an "aiming for the head" stance. Look at the sight picture when aiming higher. You might not be moving your head far enough (or too much) to compesate for the elevated position if the pistol. If that looks ok then look to see if you're getting more movement in the front sight when aiming higher as opposed to lower.

Looks like pretty-good shooting to me.

Here's what you should be aiming for in headshots. You should be shooting for the "T-zone" which is formed by drawing a line between the eyes and down the nose. This is where bullets will likely enter spine/brain and not be deflected by the curvature of the skull. When looking at a 'blank' target, aim for the spot halfway between the top of the head and the bottom (jawline) -this should put your shots into the "T-zone"

I had the same problem as you except at long ranges I would loose focus on my sight picture, used my buddies gun with night sights and it worked wonders for me.

Plenty accurate to be deadly. Remember to squeeze. Focus on that front sight, gradually increase trigger pressure, it'll surprise you when it goes off, and the bullet will go where you wanted it. That's with a subcompact? Nice!

Thats about as good as I could get my G19 to group, however, my G23 could lay em in there alot tighter. The triggers take awhile to get used to, and those groups will shrink. I never did get my 19 to shoot all that great, but my 23 was a tackdriver