The Firing Line Forums - View Single Post - .223 Once-fired brass, neck dia. too small

Brian Pfleuger · January 26, 2012, 01:23 PM

Brass only has a "springback" of something around .001 inch. As long as you can seat bullets without crushing the cases you won't have any more neck tension than if the necks had been .218 Which, even .218 seems pretty small to me. I normally see about .002-3 less than bullet diameter in all my calibers. Either way, don't matter anyway. The brass will stretch just like it does when fired and maintain about .001 "springback".

January 26, 2012, 01:23 PM	#4
Brian Pfleuger Moderator Emeritus Join Date: June 25, 2008 Location: Austin, CO Posts: 19,578	Brass only has a "springback" of something around .001 inch. As long as you can seat bullets without crushing the cases you won't have any more neck tension than if the necks had been .218 Which, even .218 seems pretty small to me. I normally see about .002-3 less than bullet diameter in all my calibers. Either way, don't matter anyway. The brass will stretch just like it does when fired and maintain about .001 "springback". __________________ Nobody plans to screw up their lives... ...they just don't plan not to. -Andy Stanley