Originally Posted by MNBud
I am very confused why people are removing material from this step, the only thing that step does is locate the position of the extractor when there is NO round in the chamber. Once there is a round under the extractor this step is OUT of the process.I believe that too much messing with this step people are going to have issues with the extractor being in the correct location while CHAMBERING a round.
One other thing in addition to what you've already written: The size of the extractor's shoulder also determines how much, 'bite' the extractor claw takes on a cartridge rim.
If a small amount of material is removed from this shoulder then cartridge cases are going to be more positively grabbed by the inward-directed claw.
Where the extractor claw rests when there is no cartridge in the chamber is, consequently, irrelevant.