Crust around the primer

[Sambaru]

Hello, reloaders,

This question is regarding factory ammo but I thought the reloaders would know best so I'm hoping someone can help me out. I purchased what was supposed to be factory ammunition. It is supposed to be the "higher end" stuff too (Winchester Ranger JHP). I have noticed that some of the rounds have this weird crusty stuff around the primer. I don't know if my only camera (my phone) will be able to take a picture of it but I'll try. It is kinda like sand that has hardened and it's around the edge of some of the primers. I have never seen this before in all the ammunition I have ever been around.

Does anyone have any insight as to what it might be?

 

[Sambaru]

It actually turned out not too bad. You can more or less see it here though not really in detail. I tried picking at it with a toothpick... it is quite hard and it is brittle. Appreciate any info anyone might have. Thanks.

 

[tiriaq]

Polishing medium?

 

[Sambaru]

Thanks, tiriaq.

I tried several Google searches and finally came across a few threads that said it is primer sealant and then tumbling media and common for this brand of ammo.

Relieved that I didn't get screwed over somehow but also irritating. I thought the T-Series JHP was supposed to be among Winchester's better ammo. Seems sloppy to me.

Cheers.