The reason I am asking is because my 870 is driving me nuts.So far I have tried a JellyHead,Hasting 660 ported and a Hasting 675 choke tube. Shells I have shot WinSup 6 3 1/2and 5 3 1/2and some Remington heavy 3 1/2 shot...just not getting what you call a good pattern. I am going to say the best so far was with the Jelly and Win Supreme 6...I was thinking of running some 3 inch through it before I break out the wallet for the X shot...any suggestion would be appreciated from you guys..