You are absolutely correct sir.
Going back thru my records…. this was July 2021
I had several rounds loaded with 6.7gr H110 (looking back that was kind of stupid but at the time i didn’t know all this) and 225 gr Berry’s Spirepoint .308 in a 300AAC cartridge with small rifle (not magnum) primer
6 rounds fired over chrono (~800-850 fps)
afterwards I did observe some strange scratches on the hulls (debris in chamber?)
none cycled the rifle (DPMS rifle with 16” barrel)
round #7 was the problem
- i felt a sharp recoil
- BCG did not cycle into the buffer
- smoke/soot coming out of every place it could find, even found soot shoved down into the magazine
- myself and several others tried in vain to pull the bolt back but could not extract the spent case
- we did record a reading on the chrono for the boolit in the 700 range (was lower than expected)
- gunsmith had to remove barrel to get the case out, found bolt face was disintegrated and had to replace that
- i still have not attempted to fire this weapon again as i think the chamber is damaged and i want another gunsmith to look at it
bottom line: i’ve learned a value lesson that i’ll never forget. i’m lucky i didn’t end up seriously injured. and much better/cheaper to ruin my rifle and buy new one than to end up in the hospital
thank you for sharing your opinion from the technical viewpoint. it very much lines up with my experience
There’s a saying we have, “sometimes you see something so stupid you know a Marine has to be involved…”
I’ll take the hit on this one! (well, i already have)