Why is my Hornady 6.5 Creedmoor brass cracking/scratching on the shoulder

Buckling brass below the shoulder - Is this from too much lube? Happening even when only using hornady unique on bottom half of the case. Can't get proper shoulder bump without this

A pair of 580s in 17 & 20 Garin

Removing case lube after full length resizing

Neck/ Shoulder cracking question

Cracked brass Shooters Forum

Preventing case separation

Neck Split? : r/reloading

Why are 7.62x39mm Kalashnikov casings tapered? - Quora

6mm and 6.5 Creedmoor Precision Ammo Reloading - RifleShooter

Peterson Virgin Brass Pressure Signs

Signs that its time to anneal?