i just started buying ammo at walmart again last week. i tried out 200 rounds of the fed aluminum 9mm... i liked it, so i grabbed 500 rounds to put into my fort. im planning on buying around 500-1000 each month just to put into the fort, with another 200 or so for target practice.
if you dont know... federal 9mm aluminum fmj is $9.99 a box of 50. ........500 rounds cost me $105.00. shoots great in my guns, and there is no brass to hunt down in the grass. which is pretty damn nice. i expect to have about 10.000 rounds of this stuff neck bearded in the next two years.
walmart has my favorite handgun ammo.... remington 100 round bulk jhp... 9mm, and 45 acp.
protip...... if you want a ammo fort, and your not made of $$... buy ammo, and shoot 50% and ammo fort 50%... you will have a fort in no time.