When I was working in Corrections, every 2 years the firearms instructors had to be re-certified.
Don and I would fly to Vancouver on Sunday, flying home on Saturday next and during the in between 4(5) days, we would each go through roughly 1,500 rounds of .38 Spl.
We did a lot of shooting and some instruction. On Wed., the recruits who were failing their shooting, whether Van. City Police, Port Moody or Richmond recruits, they'd come out to the range and get some one on one or one on two instruction.
They always were running passing grades by the end of the day.
That was fun!!