ttarp, you didn't mention your intended application (hunting, bench, etc.), so I'm going to assume your just looking at general shooting skills.
For that, I would say 90% of my shooting is within 50 yards and more than half of that is at 25 yards. I practice towards two end goals. (1) Hunting. (2) Practice so that at some point I can shoot silhouette competition and not embarass myself.
I only returned to riflery a few years ago. I relearned the fundamentals getting my Rifleman patch. Now I'm just working at getting better. I like offhand shooting with the .22, so for small game I'm (right now) limited to about 25 or 30 yards, although I'll go to 60 or so if I can use a support.
I'm guessing about 75% of my shooting is offhand, with the other 25% being split between sitting and prone.
I find anything between 25 and 50 yards is good practice for fundamentals. After 50 yards other conditions start to become a significant influence and while (very) important, if I'm practicing fundamentals then I want to eliminate wind, etc. from the equation and focus on technique.