What is the purpose of the Ejector Screw?

[BVZ24]

It provides a raised bump inside the bolt channel in the receiver so that on extraction the rim of the cartridge hits it and bounces the cartridge out.

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[Neuraleanus]

It provides a raised bump inside the bolt channel in the receiver so that on extraction the rim of the cartridge hits it and bounces the cartridge out.

Is there a spec on the bump?

[hayboy]

It provides a raised bump inside the bolt channel in the receiver so that on extraction the rim of the cartridge hits it and bounces the cartridge out.

Morning.
Just to add to this, I think more specifically it's for the ejection of unfired rounds. The friction against the side wall of the receiver is enough to eject the empty fired case as its extracted by the bolt. However, a heavier unfired round needs a bit more persuasion and this is where the tip of the extractor screw comes into play.
Best regards, Jon