I have just aquired an 1895G 45/70 Govt Marlin and want to load some low power ammo to use at the range and for plinking. I know the 45/70 isn't a plinking round but I got the gun by accident and decided to work with it. I have ordered a Classic Lee Loader for the 45/70 I have also ordered some Starline Unprimed brass and some H4500 300gr Hollow Point bullits. I plan on using CCI large rifle primers because I saw where there harder and work good in tube fed rifles. What I'm not sure of is what powder should I use. I found a reloading page that said I could use IMR 3031 with my HP bullits and if I use 43gr (is gr grams or grains) it should produce a velocity of 1410. I thought that I could use even less, lets say 35 gr and make it shoot softer still. What can someone tell me about my plan?