Buy 5000 rounds for $370+13%tax
1000rds free paying for 4000 rds as 1 in 5 are rebates.
So 370/5=74 which means that for every 5000rds at $370 you get a rebate of $74 after purchasing not including tax. So you still pay tax on that $74
74×13%=$9.62
So $370+13%= 418.10 - rebate $74 = $344.10 total for 5000rds....
So you can buy well over 10,000 rds in this rebate
At 9.99/box of 100
1000rds is $99.90
10000rds is $999.00 x13% =$1128.87
That's a rebate of 20 boxes at $199.80 for for 2000rds
$1128.87-199.80= $929.07
It's a good rebate but not as good as a set price rebate.