Extractor Marks?

[MT257]

So I am looking to see what everyones thoughts are on extractor marks on the headstamp of the rifle brass. I have a load that seems to get an extractor mark on the head stamp area of the case. The bolt lifts without any pressure. The load is accurate what would you guys do? Shoot it reduce the load?

 

[Reelamin]

Cartridge gun action load data etc would help a lot. A photo of several of the case heads would help.

 

[MT257]

Cartridge gun action load data etc would help a lot. A photo of several of the case heads would help.

300 WSM on a rem 700 action. B&C stock. Hornady brass, 2.855" COAL, 165 TTSX, RL-17 67.9gr, 215M primer

 

[MT257]

Only three pieces of brass I have with me.

 

[FEENIX]

Only three pieces of brass I have with me. View attachment 333047

"I" would back it off a tad.

 

[Mikecr]

Ejector marks, not extractor marks.
Is the chamber clean & dry on firing?

 

[MT257]

Ejector marks, not extractor marks.
Is the chamber clean & dry on firing?

My mistake, yes the chamber is dry and clean has never been in the elements.

 

[Coyote Shadow Tracker]

Take a look at those firing pin dents on the primers.

 

[purpledragon]

Take a look at those firing pin dents on the primers.

Cratering there looks to me. A bit hot....JMHO

 

[nwhunter]

I would back off a little based on those primers.

 

[Bucklowery]

I would back off a grunt as well. If it was only the cratered primers from a Remington I would not be too concerned. In my limited opinion that adds up to pressure. I like to find it not operate in it or near it but some do and have more experience than i

Thanks

Buck

 

[JMW67]

Alliant data shows this to be a max charge weight with a cup and core bullet I have found with Barnes you have to back off some as they pressure up sooner I would step down into a lower node

 

[nwhunter]

If you were to measure your fired cases from those I would expect them to show some expansion in the web area of the case based on what your picture shows of primers and ejector marks.

 

[Rick Richard]

I would normally agree it is a tad hot, but some Hornady case materials are on the soft side and will "mark" regardless of the charge. My experience anyway.