ok fellas got a question, looking to buy a new lever action. I cant decide between 45-70 and 450 marlin, I know nothing about either caliber except that I have read that " the 450 marlin has more horsepower because it is a newer round as opposed to the old design of the 45-70".
I will reload for whichever one i get, but what is the real difference here??

p.s. I really hate to start a thread that turns into a "YOU SHOULD GET THIS GUN BECAUSE ....UM.....I..GOT ONE AND I KILLED A DEER WITH IT!!!! im just looking for an answer from someone knowlegable about both calibers. thanks guys!!!!!!!