I think you should try a different choke,you should be able to get a much better pattern than that.

That doesn't sound like much of a pellet count. I assume your shooting a factory choke, I'd switch to an after-market choke from Truglo, M.A.D, Kick's, or Comp-N-Choke. The factory extra-full choke that came with my Remington Super Magnum shot horribly, there was holes in the pattern everywhere. Needless to say, it didn't stay in the gun long. I switched to Truglo.

PBB

Pick a hair.....or a caruncle!!

THAT'S IT PABEARDBUSTER
IT'S A FACTORY CHOKE. SO I GUESS I'LL TRY ANOTHER CHOKE FROM SOMEONE ELSE.
I'VE BEEN LOOKING AT THE KICK'S CHOKE.!!!!!!!<img src=icon_smile_big.gif border=0 align=middle>

Whatever choke you use, follow Gold Finger's advise and find out where your pattern is shooting. The gun has to be off or you should have a lot more shot in your pattern no matter what pellet size you shoot.