I have a ruger M77 Hawkeye Alaskan . Me and my freind were out hunting and he had his pistol away while hunting deer. anyway he had his rifle out and he killed a deer so we go to the kill and a buck comes out of nowhere charging us. i didnt have my pistol and it was coming for me so my freind quickly took out his pistol and killed it. Anyway i now am very fearfull and relly need a back up pistol when im hunting with my rifle. What is a good hunting revolver? ive never owned one, is there alot of maintenance needed on revolvers? i owned a sig along time ago but i dont have it anymore. also why do some revolvers not have hammers? like this http://www.ruger.com/Firearms/FAProdView?model=5758&return=Y