I want to hear from those of you who practice to hit bullseye. I am talking about hitting a 7up can at 100 feet. Please discuss techniques including stance, grip, breathing, aim, and other important factors that help improve aim.
This is a loaded question. There's a ton of information already out there - some good some not. If you're interested in improving your own shooting, avail yourself of these resources and practice, practice, practice. Shooting accurately is theoretically easy - just obtain the perfect sight picture and pull the trigger without disturbing the sights. All that's written beyond that is about
how to do these 2 things, and how to do them consistently.
To get you started, check out:
http://www.bullseyepistol.com/
There's lots of good info there. Also see if you can find a copy of
The Pistol Shooter's Treasury, or the
USAMU Marksman Guide (A copy is on the bullseyepistol.com site).
Does it matter if we use pistol or revolver?
Shootin's shootin'. You can even use an air pistol at home (highly recommended). That said, trigger control while shooting a double action revolver in double action mode is particularly tough to master. Do that, and everything else comes easier. OTOH, if you prefer semi-autos, there's no particular reason, IMO, why one should have to master a DA revo first.
In either case, the fundamentals are the same. If you get good with one particular gun, and are horrible with another, it's a good sign you picked up a bad habit with your first gun and "fixed" it by compensating with a 2nd bad habit. Switching between platforms on occassion keeps you honest, then.
How do 9, 45, 38spl, 357 and 44 will perform at 100 feet with respect to perfect hit.I am not talking stopping power etc. Just compeition shooting.
When it comes to formal competitive target shooting, there may be some slight advantages of one caliber over another, but I suspect it's more due to the gun itself - e.g. a .45acp shot from a 1911. Very popular gun, and lots of good gunsmiths have figured out how to make it run really well.
All the calibers you listed are capable of excellent accuracy. If a shooter's accuracy generally goes down when shooting a bigger caliber, it generally means they're flinching or a bad habit is being exposed (see above).
I don't know why you'd feel that way. Do you feel it's not a "real" gun? No serious serious student of the handgun would brush off the vallue of a .22LR. Be a student!