This is my second year turkey hunting. I managed to take a gobbler last year but I am not completely satisfied with the pattern I have. My gun is an 870 Rem. Mag. the best pattern I get is with a 3 in. - 1 3/4- #6.I am using the factory extra full tube that came with the gun. Has anyone with the same gun found an after market tube and shell that shoots a good pattern.