$14 for a box of 223 62gr?

I don’t know if my math is mathing right but I bought all this and calculated it. If my math is correct it’s going to cost less to to buy a box of 20ct pmc 62gr for 12.99. Instead of reloading it my self for 2 dollars more. Anybody care to double check my calculations?

Star line brass 223 100ct. For 27 = 0.27 per round

Berry jacketed (62gr) 500ct for 55 =0.11 per round

Cci br-4 100ct primers for 16= 0.16 per round

H335 1lb for 48 = 280 rounds= 0.17 per round.

=0.71 per cartridge =a box of 20 = 14.2