i have tousands of these wads that were pulled from hornady oob loads. i have been playing with them in my turkey loads, what i have found for sure is they dont like to be choked under.670- .675 approx. but over .670 they will tighten your pattern consideralby, if you have an old full fix choke gun you love to hunt with these are the ticket. a moss.835 shooting a .675 is great! i use nickle plated lead and buffer in my loads and at 40yds can consitantly get 95% in a 30 circle, with most in a 20" circle. thanks don