overall test, open wear. Ditto 20 yds, ccw gear. If you can get all your hits in the 12"x14" C zone, over half in the 10" circle of the chest, you are as good as anyone ever proved that they could hit with a pistol, while actually being shot at.
Any shooting practice puts you at a good stead. Limiting your practice to a specific drill, is not an intelligent plan. Flexibility and versatility are going to be your best friends if the balloon ever goes up.
Applause, Garand. You can train for years at 10 yards and be able to pick off a gnat's wings, but what happens when your deadly opponent is at 25, 50 or 200 yards? Say Whoops! And surrender? Pistols are fine defense weapons. Get the best you can. But when push comes to shove, I'll take a rifle any day. Even if it's an outdated POS like the MKII Enfield.
Shooting at 25 yards with a pistol is a good idea. But I read somewhere that IPSC shooters spend too much time trying to get a pistol to do the job of a carbine to ever get good at what really matters, the up close and personal stuff. So, if you shoot at 25 yards, don't over do it.