Not sure what the difference is between ball and FMJ.
I'd add a box of hollow points, a few more AR mags, another 100 rds ammo(maybe.)
2 LED flashlights that run off of D, C or AA batts and spare batts. Rayovac had a nice 2D LED model for $6-10.
Water can/jugs/barrels, coffee filters, and chlorine (ie HTH)
Soap, basic first aid supplies, multivitamens
Duct tape, 6 mil pastic, staple gun and stapes, a few poly tarps.
Some means of cooking (propane, white gas, kerosene, multifuel, etc. Matches, lighters
Take half the remaining money and buy beans, dent corn, Crisco, rice, sugar, and seasonings, salt, seal in 5 gallon buckets. Wheat and a grinder would be a good purchase as well.
Remaining money for more of what you eat everyday (so it will get rotated) Ie soup, tuna, canned veggies, buy chese in blocks, etc
Based on your latter post, I'd buy some freeze dried food for the BOB