I'm going to go with cayugad on this one and say you're in a rough spot; but let's talk rifles before how to. Inline: The T/C Omega is a great way to go. Traditional: T/C Hawken, Lyman great plains and both good. Didn't check much of them out, but this place seems to have a lot of info on it:
http://www.three-peaks.net/muzzle.htmYour MLs manual should teach you about everything you know.