i have a single shot carbine made by riedl, who is now gone from this world. shooting 170 grain round nose, at distance, it's pretty cool as you can time the flight of the bullet, and it goes "thunk" when it hits something.
I acquired a couple boxes of kynoch i think they are 175 grain round nose bullets in 7 x57, they are labeled on the box "dangerous game bullets" I suppose made for africa use.
never loaded any of them to shoot cow turds with, i think they are kind of rare. If i find some "dangerous game" in arizona, maybe a different story.
