I just bought a H&R HandiRifle in 45/70. It has a red dot sight with a 22" barrel. It came with 2 boxes of hand load cartridges. The seller said that he loaded 450 rounds and then sold the reloading stuff. He now has a Henry lever in 45/70. I asked what kind of powder he used in the loads. He said IMR but couldn't remember which IMR. The box says 48 grains on it. I looked it up and found that this would be a very "stiff" load. I don't want a stiff load and I hesitate to shoot unknown loads anyway. These cartridges have a slight bulge where the bottom of the boolit is...405 grain lead store bought boolits. I plan on pulling at least a few if not all of these bullets. It looks like these would be pretty hard to pull. I paid $200 for the whole rig. It looks in very good condition. Any advise on the cartridges or anything else. I am not wanting mule kicking recoil...this is a light gun.