I have killed deer with jacketed 30-30. 100 yards or less. Currently shooting metal targets at 100 yards with my 1894C. Shooting lymans 358430-195 grain is a improvement over the 158 grain. I have not shot a deer with it yet though. I have no doubt that 35 caliber 195 grain bullet starting out at 1500 FPS would thump deer very well. But the only reason I would currently pic it over 30-30 is just to see how it works. I wouldn’t expect any expansion being hard cast.
Everything posted here is good info.