Hey! I'm assuming yer shooting LB's? If you are, those numbers are extremely good, IMHO. I have chased the numbers for many years now and have the tubes and surplus rounds to prove it!!! I really don't think that yer gonna see much more in quantity. So, how's the pattern look? Is it clumping or do you have any significant holes in the pattern? You do know that weather conditions affect the pattern as well? No disrespect there my friend! I have spent many dollars on barrel mods and my guns are in that number area with good even patterns at all distances I shoot at. As an aside, back in the day, nobody would've believed possible what we hunt with today! My old 2 3/4" guns were lucky to get 10 pellets at 40 yards and I still got old Mr Tom! I have reconciled myself to being happy with the numbers and patterns I'm getting and have re-focused on the hunt once again and it's a joyful thing!
Good hunting this season and be safe!