What is causing these gouges on my brass?

[locolife]

moved to proper forum...

 

[melloyello]

Look like ejector marks from too much pressure to me.

 

[locolife]

That's what i was thinking, but the worst marks occurred at 43.5grs of Varget while at 45grs there weren't any,

 

[LILBUCK]

How many pieces of brass have that mark? It appears from the picture the mark was made at an angle. Have you looked at your bolt face?

I have a 1911 that had a slight "burr" above the firing pin hole that left a gouge on the head of the brass, just a thought.

 

[melloyello]

Did it only happen at 43.5gr and no other charge? Did you do anything different for those rounds when you loaded them? Different neck tension, different OAL, etc?