Red Dot For Rimfire Precision Bullseye - migunowners. org Red Dot For Rimfire Precision Bullseye I have been shooting Rimfire precision bullseye for a couple of months now using my MK IV with a RMR red dot Most others are using the tube style red dots I think all of the top guy’s use the tube style sight So, I started doing a little research online and haven’t found any definitive answers