Lethal Mepps Musky Killer Spinnerbait. A great early-season lure, plain and simple. Musky season opens early on many shallow northern musky lakes, and fishing these cold waters can be the key to early season action. A slow presentation is needed, and the Musky Killer's blade, like the blade on all Mepps spinners, begins spinning at even the slowest retrieve. Mepps Musky Killers feature a 1/2-oz. lead weight and two heavy-duty 5/0 treble hooks. With this added weight, they can run as deep as 8'. This makes the Musky Killer an excellent Spinner for mid-summer, too, to get at those haunts of big muskies - weedlines bordering deep water. State Color. Order yours today! Mepps Musky Killer Spinnerbait