Need some Reloading help

[Neano]

Newb here. I have just loaded my first 20 rounds. There seems to be an issue though. I have taken two pictures that hopefully give you an idea. I am loading 300 Blackout. I have 125 grain Speer TNT bullets. I am loading on a lee turret press using RCBS dies. After putting it through the bullet seating die I keep finding a small ring of copper that seems to have been edged off from the bullet during seating. I am curious if this is normal, something I am doing wrong mechanically, or a piece that I am using is incorrect? Thanks for any help or info

[GVK]

It looks like the expander ball may be just a little small. Are you using commercial or military brass? You may need to use an inside neck reamer. See how they feed and shoot. If all is well I wouldn't worry.

[Neano]

It is Tel Aviv Arsenal brass off of 2ndefense.com

http://www.2ndefense.com/300-aac-brass-tel-aviv-arsenal/

[critter69]

I would try the neck reamer, as said above.

[Draco]

You could use a chamfering tol, usually used with pictol brass, and chamfer the inside of the mouth of the brass. That will allow the bullet to go inside with out grabbing the edge.

[Mike D]

Try chambering the inside of the necks and see if that helps.

Depending on how they cut and formed the brass, it may need to be chamfered.