This is a discussion on Full length sizing? within the Reloading forums, part of the Defensive Ammunition & Ballistics category; When using new/unfired brass is it necessary to full length size it? Once it has been fire formed I plan to only neck size it, ...
When using new/unfired brass is it necessary to full length size it? Once it has been fire formed I plan to only neck size it, and sort it for weight+/- .2gr
"These are the times that try men's souls. The summer soldier
and the sunshine patriot will, in this crisis, shrink from the
service of his country; but he that stands it now, deserves the
love and thanks of man and woman."
-- Thomas Paine (The American Crisis, No. 1, 19 December 1776)
From a rifle standpoint, I don't usually find it necessary to resize at all with new brass. The worst thing I've had to do is run a few dented cases through the resizing die to get the necks straightened out. Having said that, my results speak for themselves. With my .30-06 and Hornady 165 gr. SST's, I consistently get .40" at 100 yards, 1.2" at 300. The 180 Hornady Interbond groups worse. I only get .70" at 100 yards and 2.3" at 300 yards. I can't speak of pistol reloading as I am not there - yet.
Last edited by sniper58; February 20th, 2008 at 01:37 AM. Reason: addition
BE PREPARED - Noah didn't build the Ark when it was raining!
Si vis pacem, para bellum
NRA Life Member
My equipment resizes the case neck only. On second reloads, I'll end up needing to trim the cases. Brand new nickel plated cases should be sized before loading the first time. I also check cases for thickness and turn the necks when needed. I load for the 6.5x55, .308, and 22-250.
Ammo for serious target shooting should be neck sized only, after fire forming.
Try this one on for size: Back in the days of my avid groundhog hunting I neck sized .243 rounds then used a 1/4 drill bit to remove the brass that had flowed into the case neck, then neck sized the second time. Oh the joys of being too poor to afford a case neck turner.
Yes. FL size first, then neck size until it won't chamber then FL size again.
All hunting ammo is FL sized as function beats accuracy.
07/02 FFL/SOT since 2006
Probably the only home based FFL that doesn't do transfers.