I've never experienced a failure-to-extract/eject on a 700 but I have seen problems with more than one rifle converted to a Sako extractor. If you really want an M-16 extractor, my advice is to buy a Defiance or similar action that is engineered for that system.

Another issue is that the bolt counterbore clearance for a factory extractor is pretty minimal and, often, other extractors require opening-up that dimension. If the ID of the counterbore is too narrow, the extractor won't have room to work. Not a big deal if you have a lathe but it adds time/cost.

Last edited by Woodhits; 02/13/20. Reason: added info