The Copper John v2.0 - from Barbless Flies
The Copper John is a nymph which has always caught fish. Invented by John Barr in 1993, this nymph is a great fly for both Grayling and Trout. Great in deep or fast water, it can also be used as a part of the Duo setup with great effect.
This fly accounts for fish in virtually every river and stillwater, due to its weight and profile, with copper wire twisted around the hook shank. This gives the fly a uniform weight distributed throughout the fly, and more importantly, gets the fly to the depth where the fish are (especially in early season when the fish are not looking up so much)! Even in the smaller sizes, this fly penetrates the water and sinks.
Copper John - Original. This nymph is tied with a copper wire body, flash wing case, a biot forked tail and a peacock herl thorax.