Weirdness

I recently became aware of something odd.  While working for the state I carried a Glock 23.  I had a lot of training on this model.  I own a 19.  It was my first ever Glock.  I have shot it a lot.  These guns are pretty much identical.  I shot the 23 better.  I don't know if this every registered with me, but it was true.

I was recently shooting.  I was helping someone get ready for her carry permit test.  After she was done, I took some time to shoot.  I shot about 50 rounds out of the 19.  Then I brought out my 30s and shot about 25 rounds out of it.  I shot way better with the 30s.

A couple of weeks later we went to a different range.  I shot my newest treasure, a CZ P-07.  This was my first non-striker fired handgun in 10 years.  I put about 100 rounds through it, first time out.  My son also fired about that many rounds out of it.  He shot fairly well, although I didn't have him fire any double-action shots from it.  I did a lot better than I expected with it.

I've never compared how I shoot the 19 against my 26 or 43.  I haven't formally set out to compare my performance with it to the 30s or any other firearm, but on casual inspection, I seem to shoot worse with it.  Which is alarming since it is my  carry gun except in the heat of summer, when I carry the 26 or 43.  This may change after some more trigger time with the CZ though.  It's similar in size,  a bit heavier, and a lot harder to accessorize, but it's more glove friendly and I like it.  I seem to shoot it well, even with the double action first shot.

Why would this be?  The 23 should be harder to shoot.  The 23 is supposed to have more recoil.  I never felt there was much difference in recoil between the 19 and 23.  It could be sights  The 23 had 3 dot night sights.  The 19 had standard Glock sights, until I switched it to XS big dots.  But the 30s is a shorter barrel, larger caliber, a bit fatter, and has the same XS sight set up.

Maybe I like bigger calibers?  But then why better with the CZ, which is also 9mm?  I don't have any idea.  But then I also have a sample size of 1.  I have only one 19, 30s, CZ, and no longer have access to the 23, but it was the only 23 I ever fired.