We used to have annual contact with the owner of Olympia Cartridges at the NWTF Turkey Shoot at The Meadows, which was held there in August of each year. He once custom loaded us a goodly quantity of #4s at about 1100 fps. Those were the deadliest long range (and short, obviously) crow loads I ever saw. We've still got a few of them left I think, but as you say, there's nothing on the market that I am aware of, with larger shot, under about 1250 fps.

SRH

May God bless America and those who defend her.