My wife doesn't care about neck vs full-length sizing .223/5.56 brass...

MrWhip

New Member
Sep 4, 2020
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Benbrook (DFW Area)
Thank ya'll for the warm welcome to site. Like I mentioned in my introduction thread, I am new to reloading. I am a meticulous type, as I expect many other re-loaders are, and I enjoy reading up, getting feedback from others, and watching "internets" videos to learn.

Like my post title indicated, "My wife doesn't care about neck vs full-length sizing .223/5.56 brass... " I tried. Apparently she loves me, but could care less about the topic.

So I was researching neck vs full-length sizing and ran across a post by Erik Cortina (pro shooter) back in 2017. He had some very strong opinions on neck sizing and based on the response of many, he stirred up plenty of dissenting opinions. I didn't know what to conclude.

I then watched another video by Erik Cortina from 2019. This video is a rebuttal to all those dissenting opinions and he made a rather convincing argument from my point of view. I'm just saying...

If you have not seen these videos, watch them in order and I'd love to hear some feedback.

2017 video


2019 video

 

TxStetson

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May 9, 2013
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So, if your mind is already made up, what do you need from us?


OK, in all seriousness, neck sizing is fine most of the time for a bolt action rifle. If the brass came from any other action, or another gun, or is of unknown origin it should be full length sized.

Some people believe that you get better accuracy from only neck sizing because the case is already formed to your rifle’s chamber. Some people believe this isn’t the case. Honestly, I can’t tell the difference. I do believe your brass will last longer if you neck size because you’re working the brass less than full length sizing.

Since you specifically asked about 223/5.56 I’m assuming you plan to shoot it from an AR, so definitely full length size.
 

MrWhip

New Member
Sep 4, 2020
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3
Benbrook (DFW Area)
What kind of shooting are you doing?
In .223/5.56, I shoot an AR/M4 Colt rig. My latest pursuit is talking shots well past 100 yards with an Aimpoint CCO alone, and with 3x flip magnification.

I also play with pushing the limits on 9mm out of a carbine (Camp 9) for sh*ts and giggles.
 

toddnjoyce

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Sep 27, 2017
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Boerne
In .223/5.56, I shoot an AR/M4 Colt rig. My latest pursuit is talking shots well past 100 yards with an Aimpoint CCO alon,e and with 3x flip magnification.

I also play with pushing the limits on 9mm out of a carbine (Camp 9) for sh*ts and giggles.
Well, the 9mm ain’t gonna be an issue. And 100+yd shots out of a 5.56 ain’t either, without regard to your sizing method.

If you want to wring out accuracy and have an 5.56 AR that can truly shoot sub-MOA out to 300+ yards, then it will make a difference over time.

For plinking, it won’t make a shit of difference until you’ve worked the brass five or six times.
 

Younggun

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Jul 31, 2011
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You want to full length size for the AR platform. You can still get plenty of accuracy out of it and far fewer feeding issues.


Of course, someone will Neck size for their AR and say it’s all hogwash. Maybe they got a loose chamber.


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Younggun

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I doubt most people put enough time in to sorting and prepping brass to see an accuracy difference between neck and FL sizing.

Have you sorted the cases by volume, shot the brass and sorted out any that result in a flyer or shot outside the group, sorted bullets by weight and length, uniformed the neck, etc, etc?

There’s always a point of diminishing returns, but unless it’s a custom built target rifle I don’t think you will benefit from some of the more extreme steps. And I don’t think neck sizing will be worth the possible loss in reliability. Especially once it starts getting dirty.


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MrWhip

New Member
Sep 4, 2020
8
3
Benbrook (DFW Area)
Well, the 9mm ain’t gonna be an issue. And 100+yd shots out of a 5.56 ain’t either, without regard to your sizing method.

If you want to wring out accuracy and have an 5.56 AR that can truly shoot sub-MOA out to 300+ yards, then it will make a difference over time.

For plinking, it won’t make a shit of difference until you’ve worked the brass five or six times.
I'd say for the last handful of years conducting rifle quals in the Army, I opted to not pull the trigger on those two 300 yard pop-up targets. Hitting them with pop-up sights after I turned 40 is definitely a NO GO, and hitting them with CCO has lately been a waste of a shot.

I'm not quite ready to try for sub-MOA at 300+ yards with an AR. However, I would like to consistently hit that damn target shooting prone. I don't expect brass sizing methods will matter much in this, but that is where I am coming from.
 

MrWhip

New Member
Sep 4, 2020
8
3
Benbrook (DFW Area)
There’s always a point of diminishing returns, but unless it’s a custom built target rifle I don’t think you will benefit from some of the more extreme steps. And I don’t think neck sizing will be worth the possible loss in reliability. Especially once it starts getting dirty.


Sent from my iPhone using Tapatalk
I agree.
 

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