I’m negotiating with someone local on a trade, ammo for a gun. He has a Beretta PX4 9mm (I’ve wanted one for a while now) and is interested in trading for some 45 ACP ( Win white box 230 gr) and 22 LR. (Federal 40 gr LRN). What price per round is fair? I looked on ammoseek and the 45 is about $1 per round and the 22 is $.26-.36 lore round. Is it right to use these prices? Thoughts please.