I shoot at everything with them,quail,grouse woodcock and on pen raised birds(pheasant)there dead in the air.I think like every thing else it is a matter of what you feed it.3/4 oz Remington are my choice for most stuff,but have shot a pile of birds with 1 oz loads(Nobel)awhile back a friend gave me some nickle plated #4!Gave real meaning to overkill of quail,but worked well on bigger birds like Pheasant,like Harry said "You got to know your limitations"
Hampton