I'm new to Nosler ammo and have a question. I'd like to buy .308 168gr e-tips and the Nosler website has the trophy grade ammo at $41.30 then they have what looks like the e-tip line of ammo (doesn't say custom or trophy grade on it) for $31.95/box. the ballistics listed on Nosler's site are the same for both boxes. Any reason to spend the extra $10 for the trophy grade that I'm not seeing? $31.95 box seems like a good buy and want to make sure I'm making the right choice.