K11 first fired

[Boltcarrier]

i fired from PPU cartridge 178 gr fmjbt, first time firing from this K11

i found the rims on all the shells have a small nick to them after firing.



is this an indication there's a problem with the extractor

 

[diopter]

Can't tell where exactly the nick is.
Try slowing down loading and use a two stage approach to eject, short fast movement about 1-2 inches then gentle to hit the ejector.
Nicks may come feed ramp or mag lips. Try to figure out where it's coming from first.
It could be the ejector may need more of a bend. Little at a time.

 

[577/450]

Are feeding from a magazine? If you are feeding singles into the chamber the extractor will make that kind of mark