AmmoSeek cost per round is excluding any applicable shipping, tax and discounts so "final" cost could be higher.
Actually, the lowest cost per round I found is from Brownells:
22LR Walmart pricing varies depending on location and you still have to pay sales tax and gas to make the round trip.
So if we use $21.16/325, 7% sales tax rate and $10 in gas to make the roundtrip, 10 box purchases will come out to:
$211.60 + $14.81 + $10 =
$36.37/500.
And based on my 40,000+ round testing, some 22LR rifles are ammunition selective and even the loose bulk Aguila 38 gr CPHP at
$36.99/500 shipped may produce smaller groups than Federal AutoMatch 40 gr LRN (I actually bought some new lots of Federal AutoMatch along with other 22LR ammunition so I will be conducting new/old 50/100 yard comparison tests soon and will post on "22LR lowest cost shipped" thread so stay tuned -
https://www.thehighroad.org/index.p...t-shipped-pricing.902560/page-5#post-12319367