Lapua Factory Ammo

The new issue of Sniper Magazine has tests on both JP LRP-07 and Larue PredatOBR and it used Lapua Factory ammo for both and guess what Lapua Ammo had the best groups with both guns and beat Black Hills and FGGM 175gr. It also had ASYM Ammo tested but Lapua beat it.
 
It's probably the factory ammunition to beat, and you get Lapua brass when you're done. I've burnt cases of it in .338 LM, and it is great ammo. Each rifle will have its preference of course, but shooting across a large sample will give you a good idea of what averages better.