Because of its positioning, The Big Gun is usually climbed as part of a horseshoe, or loop-walk, of the eastern section of the Reeks, starting and ending from the Hag's Glen. It is also climbed as part of the even longer MacGillycuddy's Reeks Ridge Walk, which often starts at The Big Gun's eastern end, from Kate Kearney's Cottage in the Gap of Dunloe.