Some things to know about that vid:
- the rifle was a brand new Czech Small Arms (formerly D-Technik) 11.75" VZ 58 Sporter.
- it was oiled, not greased. The importer wanted it that way.
- roughly 1k was fired continuously over about 20 minutes, 5 rounds at a time.
- at about 600 rounds the front of the plastic handguard melted through and it fell off.
- it was about -20 C out.
- it had numerous feed issues due to mags not fully locking in place. I had the same problem with my CSA til I modded a spare extended mag release.
- I'm the guy in the blue and red snowmobile suit.
It was a ridiculous test, not representative of any sort of reasonable use, even for a FA military gun.