the spread would depend on the choke but most 410`s are full, i found you either flat pack what you hit or miss completly, i must admit i love 410`s and have owned loads everything from old el chimbo`s to a holland and holland, the only left and right ive ever done on woodcock was with an old side by side parkermy hammer 410 ive had good bags on the pigeons with a 3 inch side by side some turkish make it was, the only drawback is cartridge cost, ive settled on a 20g now.