24.0gr of H110/296 topped with a 240 gr. hollowpoint has been the immediate family's load for several years, it's the top listed load for velocity in most loading manuals. At first we were using XTPs, at carbine velocities these broke up and the few recovered were only cups, the lead had disappeared. Called for picking out bits like picking shot out of waterfowl when doing the cutting up. We're now using Noslers, which were considerably cheaper anyway, they were about $30/250 locally. These stay intact at carbine velocities, the couple I've reoovered have mushroomed nicely and stayed intact in the cup. Either will turn bone into mush. I've not had any accuracy with bullets of less than 220 gr. or so, they tend to pattern out of our guns. The paper ballistics of a 180 are very close to .30 Krag, but they don't shoot. I've gone higher with H110 charge weights with 240s, but really didn't gain anything and lost accuracy. You run out of powder space, anyway. The current loads will shoot through a deer broadside on, leaving a .44 hole in one side and about a 1" hole in the other, power enough for the job. You'll want to start low and work up, don't start with the top listed load.
Stan