The first thing you need to buy is some bigger targets!

Ride down to the hardware store and get you a roll of contractors paper... cut some 36x36 inch squares... one roll will last you a lifetime... and it costs like $11. Your gun might be shooting better than you think it is... but if you keep slinging those $4 shells at .04 cent paper plates, you'll never know.

Good move on the limbsaver!

I shoot a Pure Gold .670 out of my 835. I use 3.5" 1 3/4oz hevi-13 #6s, and it'll put over 200 pellets on that pie plate of yours at 40 yards. Course, thats with a good set of sights... and you need to be able to see the WHOLE pattern to know exactly if those sights are right or not.