Maybe it was a bad day, but Steve was pretty sure the velocity of those shots, the impact of the bullet ripping through the target sheet, would have remained the same even on a good day. Sharon was a natural with any weaponry, but watching her shoot off a few rounds with a 9mm was more than just a bit impressive. Captain America himself didn't use a gun; he whipped his shield out and that was usually the end of any trouble faced. His job was to protect people, hence the symbolism of the shield, and it was what he planned to do. Hunting them down, killing them, well, it was a last resort; he'd rather take them in alive first if he could. Despite the changing of the times, Steve tried to be a good man, see the good or the just that everyone deserved at least once.
"Thought I'd find you here," he stepped up, halting a few inches away and nodded towards the targets. "I think you could give Clint a run for his money with the arrows of his." It was a lame joke, a rare joke though because Captain America rarely, if ever, joked about anything. Sharon was just easier to be around than most people.