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rcw3
Reply with quote  #1 
I have not tried Lapua .223 brass but I have been told the neck metal is thicker than most other .223 brass on the market. I don't know if this is true or not. Does anyone have any info on what the neck diamter is of loaded .223 rounds using the current Lapua .223 brass.

Robert Whitley
groupshooter22
Reply with quote  #2 
Mine run .2596 - .2598 with a nosler 80g custom competition.
Ackman
Reply with quote  #3 
Mine loaded is .2505", plus or minus a couple ten-thou. Normally 223 runs about .248".
cliffy
Reply with quote  #4 
.223 Remington brass comes in new and used lots. BOTH require some degree of preparation prior to loading. I've never yet found the perfect, ready-to-load case that hasn't required a slight degree of tweaking. Lapua brass normally requires the least amount of prepping, BUT I prep all cases equally. That's just me, because I trust nothing to change when configuring maximum loads. cliffy
Ackman
Reply with quote  #5 
Quote:
Originally Posted by cliffy
.223 Remington brass comes in new and used lots. BOTH require some degree of preparation prior to loading. I've never yet found the perfect, ready-to-load case that hasn't required a slight degree of tweaking. Lapua brass normally requires the least amount of prepping, BUT I prep all cases equally. That's just me, because I trust nothing to change when configuring maximum loads. cliffy


None of that has anything to do with neck diameter.
fdshuster
Reply with quote  #6 
Robert: My Lapua is uniformly .250" maximum, ( might be a few ten thousandths less/ can't measure that close), and am using a .253 tight, no-turn neck on several of my rifles. Neck bushing at .248", so all is fine, and brass being worked minimal. groupshooter22: I hope that's a typo, with your measurement of very close to .260"?
gunamonth
Reply with quote  #7 
Quote:
I have not tried Lapua .223 brass but I have been told the neck metal is thicker than most other .223 brass on the market. I don't know if this is true or not.


It's true. Neck wall thickness of the Lapua brass headstamped 223 Match runs around 0.0128". Federal Match and Lake City are in the 0.0115" - 0.0120" range.

The current lot of Lapua Match I'm using with Hornady bullets measures 0.2495-0.2499" loaded neck diameter.

There's still some older Lapua (not Match) around that only measures 0.011" neck wall thickness. Also some Dakota Match 223 floating around which is Lapua Match with a different headstamp. Found some in Grafs closeout bin a year or so ago for around $20/100.
groupshooter22
Reply with quote  #8 
Yeah checked again and its .2495 - .2498 must have been too late last night for me to read a mic.
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