I'm not savvy to rifle stuff, what's Dwell time ?
Here's a very good description of the AR system. As many have noted, you certainly need range time, but it helps if you arrive at the range with a properly designed firearm, and ammunition load.. only "then" can experience help.. or in other words better to spend the non shooting hours of the day making sure your "range time" isn't simply clearing jams and wondering why it won't cycle..
http://www.ar15barrels.com/prod/operation.shtml




















































