I had to buy ammo from brownells $46.99 a box right now it’s free shipping if over $150 plus you can stack discount codes , that was the only way to get brass without waiting till it’s available from the better brass manufacturers.
I use Hornady dies to resize my ADG 6.5prc brass & haven’t ran into any problems for my Ruger RPR bumping the shoulders .002” . Since that brass wasn’t fired in your gun are you positive you bumped the shoulders back far enough to fit your chamber ?
That doesn’t look like excessive lube ,I’ve never seen a belt get created by over applying lube something else is going on with those cases ....shit can them & use another head stamp brass .