Not really a kill, but i did have a fun shot using a buddies rifle by applying math on a blade of grass at 250 or so awhile back. This buddy had a 6.5-20x Leupold/Duplex reticle on his rig for lack of another scope. We were trying to get to the longest possible range with it and i developed a system for him using the plex post tips at 6.5 power where the subtension between x-hair and lower PPT becomes 4 MOA. Sighted in for 175 yds. 250 yds. is .9 of the way down to the PPT. After an unsuccessful coyote stand one day last season we though to take a shot at a wide grass blade stickin' out of the snow at 250. I wasn't sure what the hold was so my buddy says .8 down. So i hold for it and sure enuf miss just low. I then looked in the Butler Creek scope cap cover and saw it's supposed to be .9, and on that next shot hit the grass blade and it broke off. Thought that was a heckuva' fun shot...at least my kind of a rewarding long-ranger.
We have shot out to 400-450 on rocks and such with it using the tgt. turret.
On of those situations where my shooting pardner's only comment on watching the shot was "your kidding me right, how did you hit that?" He had just taken a poke at it with a 223 minutes earlier and missed.
Iv had a 17 HMR rifle since it first came out. Most all of my shooting is at prairie dogs. I live in prairie dog country so when it gets windy I dont go or come home. When I first got the Cooper 57 M LVT rifle I tryed the 17 Gr bullet at various ranges. I wont clean kills when I shoot them at any angle so my limit on long range is about 150 yards. I have inspected a few p dogs shot at the 180-200 yard ranges but most got back into their holes so thats why I set the 150 yard range for myself. I use centerfire varmint rifles for shots past 150 Yds.
My longest kill was 191 yards on a crow. The 20 gr hollow points seem to hold together a little better than the 17s but not too much. The 20 gr FMJs work the best on anything you'd want to eat in my experience. But I can't find them anywhere except online.