I spent a few weekends up at the range with mine. I tried several different bullets, bullet weights, and powder weights. The guy I talked to at Knight was right. The best combination in my Bighorn was the 250gr Bloodline with 100grs of Triple 7. I got a three-shot group of just a hair over an inch. That doesn't mean your gun will shoot the same combination and achieve the same results. Also, that was with a scope on it, which isn't legal to hunt with here in Washington. Frankly, I'd be happy to shoot a 4" group with open sights.