The Firing Line Forums - View Single Post

jski · November 29, 2022, 05:02 AM

I've always thought the throat diameter should narrow down to ~.001 less that the grove diameter? So for a 32 cal round with an canonical grove diameter of .312 the throat diameter should be .311.

If that's not true, what should the ideal throat diameter be?

November 29, 2022, 05:02 AM	#3
jski Senior Member Join Date: March 5, 2016 Posts: 374	I've always thought the throat diameter should narrow down to ~.001 less that the grove diameter? So for a 32 cal round with an canonical grove diameter of .312 the throat diameter should be .311. If that's not true, what should the ideal throat diameter be? Last edited by jski; November 29, 2022 at 05:26 AM.