Thanks for all the insightful responses guy's. I was using Federal 550 bulk pack ammo. I really liked the weight of the Model 18, I was able to easily shoot one handed.

InTheWoods I was aiming point of impact so it make since that my group are a little high, I will use the 6 O'clock method next time out.

As for the grips I need to get to a gun store and see some different options. I was browsing the web and came across Ahrends grips, they look good and seem to be reasonably priced. I just need to feel what one fit my hands the best.