Some ammo is more accurate than others. In pistols, most people won't ever know which is which because properly evaluating the ammunition requires a very accurate pistol and either a very accurate shooter or someone willing and able to test the ammo carefully from a rest.
In my experience, most any ammo that is good enough quality that I would allow its use in my guns produces satisfactory accuracy.
Here's a 10 round group I shot at 15 yards with an STI GP6 using 6 different kinds of budget practice ammo all fired into the same group.
The entire group, all 6 different kinds of ammunition, measured only 2 inches in size.
Your target would have been far more meaningful had you fired six targets with ten round groups of each different cqartridge. That would have given us the relative accuracy, or lack of it, of each different cartridge.