Gen 3 GLOCK 19. 
For target ammo I can buy the yellow 250 Mega Pack of 9mm for $52.00 + tax. It can be found slightly cheaper online if you buy 500 or 1,000 rounds at a time but you also have to factor in shipping.i pay 23$ for 9mm 100ct WWB and for .40 100ct WWB i pay 28$
Again, I typically don't buy 10-20 rounds at a time. Here is a decent example, in my 2 minutes worth of searching. I often purchase from www.ammunitiontogo.comi paid 25$ for hornady critical defense 9mm 115gr 25ct and i paid 20$ for hornady critical defense .40 165gr 20ct i don't see where your going with this its like conspiracy theory