Depends if you want to go traditional or modern in-line.Traditional I would check the T/C or Lyman line out.For the modern In-line there are so many great ones to choose from.My favorite is my Knight Disc.I have a Ruger 77/50 but still haven't tried it out.I would recommend if possible shoot different ones before you buy one. If you have a local range go and see if there is anybody shooting a ML.Talk to them ask questions.Once you decide which one you want,check different shooter suppliers and compare prices.There are allot of good buys but you have to search the catalogs.Check your states regulations which are legal to hunt with. Ruger Redhawk