lazyengineer Wrote:Also, the interior of that case head looks... odd to me. I haven't sectioned a Grendel, and it's failure mode form may not be how it started. But I was under the impression there was typically more rounded slope at the base, where the walls merge into the case-head on the inside. This one looks a bit thin there. Normally headspace related failures occure in the middle of the case body, and there's enough base to still seal. And .223 cases are designed for that, with a bit thicker bottom 1/3 of the case or so. That Lapua Grendel case... I donno. Lapua internal case dimension nuances combined with excessive headspace from the factory, is not something I'm prepared to say was the cause - but worth a moment to confirm that the headspace is correct, if you have ability to do so.
Cases were once fired by me.
No barrel obstruction.
The front part of the case came out of the chamber very very easy.
The head of the case was lightly stuck in the bolt as shown in the pics. That is exactly how it was when I removed the BCG... about a minute after the smoke cleared.
I have Go/No Go gauges on the way.
Again, the bolt was not very hard to open by hand. Just bumped the charge handle with the palm of my hand was all it took.
I'm wondering if i had the bullet jammed into the lands?? We shall see.
I'm wondering if I jammed the bullet into the lands.. We shall see.