Rooster
Vern Juenke makes a machine that spins bullets and measures the bullets inductivity along the circumferance as it rolls. The idea is to measure the concentricity of the core. an uneven core generally relates to a bullet that does not spin true in flight.

Seperating bullets this way has proven the worth of the Juenke repeatedly. Monometals are not testable, obviously.

In general:
Older Speer bullets have been better than newer.
Old style screw machine Noslers are extremely consistent.
New ones, not so much... nor even close.
Sierras do not test as well as I had thought they would... but not bad.
Sierra Pro-Hunters in .308 and .284 have been really good.
Hornady has been good in general...

Different boxes may be radically different from one another...
art


Mark Begich, Joaquin Jackson, and Heller resistance... Three huge reasons to worry about the NRA.