One of the guys that I go p-dogging with got one at confirmed 304yds with my 10/22 and subsonic match hollow point ammo. I won't know how many rounds he fired to get that one, but if it was like the rest of our endeavors, it was a "few".
Groundhog, Savage 93R17 with heavy barrel and Burris Fullfield II 3-9x40 Ballistaplex reticle, 20gr Gamepoint HMR, lasered at 417 yards. It took 6 shots to walk in for the wind, but connected with a neck shot. The groundhog went 20 yards before expiring. Bullet was recovered just under skin with minimal expansion (tip gone, hp opened up, but widest diameter was still .177. I will never try it again, I have a .223 now for anything beyond 100, and am working on a 7mm-08.
Got a prairie dog at 283 with my Cooper .17 HMR a couple months ago. I was able to shoot all winter out on the Utah desert. Got a few marmots last year out around the 270 yard mark with the .17, and 170 with the .22 LR.
180yard crow and 210 yard red ffox with my savage 93r17gv. last year a luck shot at 240 on a squirrel with an old marlin model60 22lr. i had been going to the same spot shooting at a nice chunk of sandstone just for fun to blow off steam and went out to go shoot it one day after work. right as i was compensating for drop and drift glanced at the rock and a nice sized squirrel was sitting right on top of it lol. needless to say i had squirrel biscuits and gravy the next morning for breakfast lolgun)
About 10 years my dad dropped a coyote with a 10-22 at about 110yds on a run. He was decent size at about 35lbs. I shot a few rock chuck at 140yds with my BRNO #1 with a super high quality 3x9 center point mill dot scope.