I shoot pistols at 50 & 100 frequently. 100 because it is fun. On the rare occasion when you bust a clay the rifle guy put on the berm on your first shot you holster saying "that's it for today, I'm on".
I shoot irons. The technique is high front sight. In order to hit at 100 you can't "hold over" blocking the view of your target with your sights. Your target needs to sit on your front sight post but your front sight is high in the notch. How high you have to discover for your caliber, bullet weight & ammunition.
Warming up on a NRA B8 repair center prior to shooting a B8 at 25 is the way to go. When you bring the B8 in to 25 you feel like you are cheating.