I just bought a new rifle in 6.5 creedmoor. This is my second rifle in this caliber and when I shot it today I noticed bright spots on the rim of every case. Is this over pressure? It's the same loads I used in my other rifle and this never occurred. I'm using a 120 gr. nosler ballistic tip with 38.0 grains of Varget and a Winchester LR primer. Max load is 40 grains. The primer is not flattened or cratered so I'm not sure what to do. Any help is appreciated.