There was a period of time when the khsc pistol range was çlosed so we had to shoot pistol on the rifle range.
We threw a golf ball out on the grass and the first person to push it past the 50 yd line wins.
At the last hunting fishing day, I had a little kid who shot well with the 22 rifles. So I challenged him to some timed fire shooting.
IIRC he fired a 5 shot string from a bolt gun at 5 fairly small steel plates. His best run was less than 9 seconds with all hits.
When he picked up the ar1522 he did it in about 5 seconds. I bought him more scŕip. 
Golf ball at 25 yards with a pistol would definitely be a challenge.
Loved working the 22 booth and working with the kids. It's just pure fun for them and many seem to pick it up naturally.
I did that. I wasn't the only one but I think I did it first. We were allowed to shoot at golf balls on the ground back then. I took some out to the deer. I could hit one once in a while with my AR.
I used to buy a big bag of second hand golf balls from somewhere....Maybe Walmart. We had a bunch out at 100 yards for weeks. So much fun to throw them high on the embankment and if you hit them and try to hit them as they rolled down. Then when they were at the bottom if hit just right will fly straight up.
Now I buy easter eggs after the holiday and get them real cheap. I put a string through them and hang 'em out at 100 yards and let the wind blow them around. Not easy to hit even at 50 with irons. A scoped .22 is a lot easier to shoot at the eggs with.
The golf balls were more fun with my scoped rifle. The head of the deer was enough challenge for my AR with red dot only.

On the steel silhouette range, I do an informal competition with pisto/rifle, standing or seated.
On the hanging plate racks at the 50 yard line, shoot 5 plates from left to right. First person to get a shot on each plate in order wins. For rifle I count that tiny hanging square as a target.
I would do that with one of my best friends. He's pretty accurate, but not quick on the transition. I'm a much more seasoned shooter than him, but he'll beat me from time to time if just allowed to take the time and shoot at one's own pace. Once you put any sort of time on it, his performance goes way down.

A common one that we do is pick three targets across the array and have to shoot 1, 2, 3, 2, 1.
I bought a shot timer last year and when we have a chance in the action bays, the shot timer proves to be really fun. For those who shoot IPSC/USPSA, we are used to the timer, but still adds a level of self induced stress. Put other shooters on the timer for the first time, and many almost seem to panic. Well, not quite panic, but it's amazing at how much stress that buzzer can put on a shooter.