#5 or #6 in long beards?

[PineyRooster]

I shoot the 3.5" 4s in a .655 and am getting in the high 140's... I have a couple buddies that have similar results with the 4s.. ive never seen 4s shoot the way the longbeards do. definitely a game changer and they hammer hard.. but if its absolutely between the 5s or 6s I would go 5s.

[turkey buster]

If your gun shoots 5's well I'd go that route. I shoot 5's but I bought some 4's to check and see