Do the NR-23's rounds have air brakes? I'm noticing that whether I'm firing in air-to-air or air-to-ground I'm almost catching up with the rounds after I fire these guns. This is a sim. so supposed to be as realistic as possible. Well in reality the NR-23's rounds had a muzzle velocity of 2,264 ft/sec, that's right at 1,543 miles per hour. That's not the fastest bullet in the world, but it's still zooming and a lot faster than the MiG-15. I've been shooting guns for a little over 30 years now and I know a few things about ballistics; a heavier bullet doesn't fly as fast as a lighter bullet, but it WILL carry it's velocity and momentum further than a lighter bullet. So these rounds should be getting way out in front of the aircraft and holding on to their velocity a lot longer than they do. I believe that the developer of this module got it wrong. You should be able to reach out and touch someone with this gun. By comparison, the 50 BMG has a range of about 4 miles(not that you could hit anything at that distance).