Actually the Bushnell Elite 1.25-8 has the most ER of any scope I can think of outside of a scout scope. Not sure if it's still in production but it had a listed ER of 6 inches. IMO, they should of increased the size of the objective to say 36mm instead of 32mm but I guess they intended for it to be used as a dangerous game rifle scope, hence the smaller sized objective lense.
http://www.opticsplanet.com/bushnell-1-25-8x32-elite-6500-riflescope-matte-multi-x-651832m.html
