This place has Rem Thunderbolt 500 round boxes for $35. Shipping is $7 for 1 brick, $11 for 2, and $15 for 4. There's a 4 brick/day limit. The price is good through Mem Day.
That comes to about .08/round. It's not great ammo but for plinking it's not bad. Most important is that they have it in stock.
22LR AMMO

“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell

It's not over when you lose. It's over when you quit.