Nice job on the stylish gun spinning! I really liked that. Funny concept. Feels very classic late 2000's to me. As other's have said the reticle is a little offset. It's tough with a projectile based game to get it right on. Because it's such close quarters I'd recommend hitscan or moving the reticle over to match it up. (but then once it crosses the Y again at further distances you'll have the same issue) Tough problem to solve depending on a bunch of variables.
Good job overall.