xm80c high pressures?

[ChefDementia]

My wife bought me a Savage MSR-10 for my birthday, and since I didn't have and 308 around i bought a few boxes of Federal xm80c. I noticed that all the round that were fired have the primers cratered like the one in the picture. I haven't had a chance to try and other ammo with the rifle yet. But is that normal for xm80c to do that? the brass all looks fine other than the primers.
IMG_20170608_080735747.jpg

[markm]

That crap , like xm193, is silly hot. We shot it against MEN .308, and the come ups were wildly different. XM is loaded like bolt gun ammo. Plus, the bi metal bullet makes this ammo a no win. Also the primer pockets are pretty blown out on the first firing.

[markm]

That said, I don't see anything too bad on your case head. Rem 700s have primer flow like that on the mildest of loads.

[bigedp51]

My wife bought me a Savage MSR-10 for my birthday, and since I didn't have and 308 around i bought a few boxes of Federal xm80c. I noticed that all the round that were fired have the primers cratered like the one in the picture. I haven't had a chance to try and other ammo with the rifle yet. But is that normal for xm80c to do that? the brass all looks fine other than the primers.
IMG_20170608_080735747.jpg

All that means is the firing pin hole in the bolt face in your Savage is a larger diameter than the firing pin. There are two cures for this, one is to have the bolt face bushed with a smaller diameter hole in the bolt face. The second is a larger diameter firing pin, ask your question at http://www.savageshooters.com/ for the simplest cure.

Below is the type bevel I have in my Remington 700 bolt face that causes the same problem.

[markm]

I've never had a reason to fix the FP hole in the rem 700 bolt. It's a little annoying when standing brass on the bench. But I don't want to pay to modify the bolt.

[Cerberus]

That crap , like xm193, is silly hot. We shot it against MEN .308, and the come ups were wildly different. XM is loaded like bolt gun ammo. Plus, the bi metal bullet makes this ammo a no win. Also the primer pockets are pretty blown out on the first firing.

Say what? Ever time I've chronied Federal XM80 it's been well within government specs. The primer pockets are crimped.

[markm]

Say what? Ever time I've chronied Federal XM80 it's been well within government specs. The primer pockets are crimped.

Not sure. I don't know specs like I do 5.56. All I know is that stuff was way hotter than MEN.

[Cerberus]

Not sure. I don't know specs like I do 5.56. All I know is that stuff was way hotter than MEN.

At 10 ft, like most of us civilian users have, keep it at 2800 FPS or just under. I could dig out the specs but it's late and let's just say the chorny distance is a bit further out than 10 ft. I did test mine through an M1A, both factory and reloads.

[markm]

I can't remember the exact difference, but at 640 yards, there was nearly 2 mils difference in come up.