I’ve noticed this also and it’s not just Eld-x. Copper Creek is sold out of all their 6.5 PRC ammo regardless of bullet and same with Gunwerks Berger load. Appears to be a brass shortage.
81621: Utilizing moderate powder charges for accuracy, low recoil and reasonable barrel life, the 6.5 PRC produces high velocities well beyond 1000 yards.
I am hoping that this is just a lull in the mfg cycle. Brass and ammo very difficult to locate, or people want more than I am willing to spend on either.