cjrjck, good shooting! I also have a USH 20 and sure don't feel under powered. That 2-7X32 scope should work quite well for a 150+ yd gun. I would take a couple of pokes out to 150 yds just to get an idea of what it can do, in case the occasion were to arrise where you would need it. I shoot the 260 gr Win. Partition Golds's through mine and get along quite well. Funny, I take the fancy stocks off the guns heading to the field also, then the only time anyone sees them is when they are in the gun safe, just ain't right! This should all lead to meat in the freezer or maybe even a wall hanger. Best of luck, JamesIII