140 Hornady ELDM.
(1) 140 is the top of the sweet spot for velocity vs bc. Yes heavier bullets give you better BC, but the trade off is they are going slower.
(2) ELDMs are a good bullet. Most people would be challenged to shoot the difference in a Berger vs Hornady. With Berger at 2X the Hornady, you get twice as much range time for your money. Experience and Practice > bullet choice (don't pick a crappy bullet--but ELDMs are good).
(3) Availability: Bergers can be hard to obtain (PRS guys horde those 6mm 105s like toilet paper). Hornady for the newer guys are easier to find.
Berger produces a better, more consistent bullet than Hornady, For my purposes, I have not found the premium, especially in loaded ammo worth the reward--especially for newer shooters (like myself). There is so much more to work on like positions and fundamentals that "Good Enough" is the equivalent of "Best" Ballistics wise, 140 ELDMs will take you to 1000. I shoot weekly at 1000 and early last year my ammo was all 140 Hornady ELDM. I took my Frank Class with Hornady 140 ELDM ammo. My current load is Hornady/Starline Brass, 42.5 H4350, and 140 ELDMs. Now I may switch to Berger 140s, but the bullet cost is only about $0.10-to 0.20. For loaded ammo--all day every day I'll take that Hornady stuff. Its an expensive sport, but making smart decisions can stretch that dollar.
As you grow in the sport you may want to reload and then berger makes much more sense. For loaded ammo. Take the Hornady
