Any kind of bow will do the job on deer or hogs at 45 pounds, from from longbows thru the latest compounds. Provided good shot selection, proper arrow selection, sharp non-mechanical broadheads and good shot placement.

With my shoulders, I have the least pain with mild cams, energy wheels and traditional equipment. The super high performance cams - the ones that jump up to peak draw early, hold it forever and then suddenly dump you into the ditch and slam you into the wall at full draw - eat my shoulders alive.