The book says that case length for .223 Remington is 1.760" .....i have several hundred that are new but have been fired ONCE ONLY.
and yet...most measure in the 1.735" to 1.750" area... they've never been trimmed.
why would they all be 20 to 40 thousandths short to begin with?.....with NONE ever coming close to 1.760"
where do you draw the line for TOO SHORT?