Been researching bolt/bcg's info for awhile now.
Ive noticed a number of different steels being used for extractors. Examples are: D2 & S7 Tool Steel, 4340,4140..and Im sure many others.
What are considered to be the best materials for an extractor? And why would a certain one not be a good choice?
If you were building a bolt...money be damned...what would YOU use & why?
Thanks for any info.