A very close friend of mine is doing low round count 2 to 3 hour classes. He focuses more on the fundamentals instead of just blowing through rounds. For instance I took a 3 hour class 3 weeks ago it was 50 rounds. Very effective training vs just shooting. I retained more from that 3 hour focused class than I have in other 8 hour high round classes. This was his way of combating the high cost and availability of ammo.