I bought a inline that was on a Remington stock,it has a 1 inch green mountain bbl 457 diameter 1 in 18 twist.totally befuddled on a load .diameter bullet to fit.soft lead /hardcast 45/70 bullets??.I think id like a hollow base bullet...or could I use bore buttons over the powder..ALOT TO THINK ABOUT..The gun was in the white 99% finished except scope mounts that I drilled n tapped.A gun show merchant was selling it for a deceased builders son,that just gave them to him,to sell ..no info..one guy says ..that shoots 45/70 bullets...hhhmmmm HELP PLEASE.THANK YOU..