300Whisper trim to length 1.355 not 1.400!
About once a month, someone is trimming down brass for their 300 whisper to 1.4". It's a pretty common mistake since that is the length of the .221 fireball; but not the 300 whisper. The real trim to length for the 300 whisper is 1.355".
Don't feel too bad. Even the Hornady book got it wrong.
The new Sierra book got it right.
How about a sticky for the trim to length before someone gets hurt trying to chamber a case that is too long in a 300 whisper chamber?
Gos.
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