Hi everyone first post. I just got a B-Mag yesterday and found a ton of ammo for it. So I went out shooting today and the results over all where good.

But one round I had a hell of a time even pulling the bolt back. So I took a look at it and this is what appeared.




So I decided to check all the casing I have fired. Out of 16 casing 2 where split. Heres the other one.



I do not know what they looked like before they where shot I never thought to check them that thourghly. But I checked the rest of the box and one round has spiral sractches or etchings all the way around the casing (think rifling on the casing) and all of them had crimp marks on the necks.

So what do you all think about this.

Also feel free to spread these pictures around to other forums you may be a part of.