The max I practice at is 25 yards, but I have shot a .38 super for fun at 100yd. targets. It's a confidence booster, mostly. The reason most of my practice is at 25yd or less is that as an armed citizen, not a LEO, if they're farther than that away from me, I probably need to find away out of the situation instead of engaging. I practice a lot of close range, push back and double tap, on my back, weird angle stuff.