Every once in a while while resizing my .40 S&W brass I come across a piece that won't slide into the shell holder. Usually I just chuck it into the reject bin, but this time I got curious. The brass didn't look damaged, so I did a side-by-side: It seems that this particular piece of Federal brass does not have a beveled base, and the extractor groove is narrower. Is this common from Federal? I noticed that Federal 40 S&W is listed as "junk" in the good vs. bad brass section, but I didn't see any mention of it not fitting into the shell holder. Wanna kill these ads? We can help!