Welcome newhunter06. The 45-70 sure is a lot of fun. I have a 223 for my small bore, and the 45-70 for my big bore, now I,m going to get a 30-30 to fit in the middle. Being a single shot it will have the advantage of being able to use spitzer type bullets , and by hand loading I can kick up the velocity a good bit. It will give me a lot of room to find the best load for the rifle. and I can use the same powder in all three calibers.