If you haven't seen it, Federal is offering a $5 per box rebate on a broad range of varmint/predator ammo
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The is a four (4) box minimum and a twenty (20) box maximum.

This deal is available thru April 30, 2020 and it appears that it can only be submitted on-line.

I came across it while looking for the best deal on 6.5 CM practice/plinking ammo. I found 50-round bulk packs of Federal 95 grain VMax for $29.95, after the rebate, at www.sportsmansoutdoorsuperstore.com, the best price per round that I've come across so far.

DISCLAIMER: I am not making any recommendation for or against this factory loaded ammunition, just reporting that there is a rebate available if anyone should choose to buy at least four (4) boxes of it.