Edit: i mis-spoke the $160.00 case was in 2004, it would have been $260.00 per case right before Obama in 2007, still never came back down.
To compare Apples to Apples I pulled any invoices I had from the same supplier, this is from 2004 to 2017 because I haven’t bought any since. ($160.00 was for a 1,000 round case)
Federal American Eagle .45 ACP 230 FMJ
2004 $.16 per round
2005 $.18 per round
2006 None
2007 $.26 per round
2008-2014 None
2015 $.34 per round
2016 $.34 per round
2017 $.35 per round
2018-2020 None
2021 None but $.59 per round last time it was available
So as you can see the price never came back down even after Trump took office.