870 combo help.

[chrmayo]

I bought one of the wallyworld 870 SuperMags with the 25" barrel. I still havent gotten around to deep cleaning the barrel. I have a JellyHead .665 for it and plan on shooting nitros. What kind of pattern can I expect with some of the 4x5x7 Nitro loads? Also which ones would you guys reccommend? Thanks in advance.

[Gobble!]

280-320