I bought a shotgun with no forethought then decided i want to go turkey hunting with it next month. The only problem is it has a fixed improved cylinder choke, so not ideal for turkey hunting. I took it out to pattern it, but I dont know what would be considered good enough to ethically kill a turkey. I was aiming at 2" stick on targets put on a box and out to roughly 15-20yrds i consistently put atleast 5 pellets(number 4 shot) into the 2" circle. i know the more pellets the better, but how many pellets hitting a turkey head/neck sized target would be minimum to be considered ethical?