22,000 rounds of 9 mm ammunition is about 1000 dollars for every 2000 rounds. So, he would have spent at least 10,000 dollars for 22,000 rounds of ammunition. Crazy!

 

Product	Per round	Price
9mm Luger (9x19mm) 115gr FMJ Wolf Performance Ammo Brick (500 rds)	$0.48/rd	$239.99
LAX Ammunition Reloaded 9MM 124 GR 500 RDS W/FREE CAN	$0.49/rd	$242.95
LAX Ammunition Reloaded 9MM 124 GR 50 RDS	$0.49/rd	$24.50
VENOM 9 MM 115 GR FMJ 1000 ROUNDS	$0.49/rd	$492.95

47 more rows

NOTE: This is assuming that all his ammunition was for 9 mm handguns which might not be true.