"neither is perfect when compared to a 30-30"
Apples to oranges. You are comparing handgun calibers to rifle. Both the .357 and the 45 Colt will take deer at proper ranges. If I hunt with a handgun I prefere the 45. There is a lot to be said for a slow moving heavy slug. I've seen what the 45 does to deer and it ain't pretty. Just don't expect rifle performance from a handgun cartridge.