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Author Topic: .223 / 5.56 Shooting & Reloading Questions  (Read 267 times)

Offline bearpaw

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.223 / 5.56 Shooting & Reloading Questions
« on: April 07, 2021, 10:29:37 AM »
I've never reloaded for .223 or 5.56. My gun will apparently shoot either, I've shot both in it, but after reading the following article I became concerned that maybe I need to figure out which chambering I have for sure and then reload only for that chambering. The additional question is which dies to use, .223 or 5.56, seems I need to decide one or the other depending on my rifle chambering?

https://www.hornadyle.com/resources/le-faq/what-is-the-difference-between-556-nato-and-223-rem-ammunition#:~:text=The%20first%20difference%20is%20the,125%E2%80%9D%20longer%20throat.

Am I understanding this correctly?
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Offline Cougartail

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Re: .223 / 5.56 Shooting & Reloading Questions
« Reply #1 on: April 07, 2021, 11:10:10 AM »
Somewhere on the internet there is an article describing the measurements of all the 223/5.56 throats. Pretty interesting read. The Wylde(?) Is suppose to handle both so check your barrel/manufacture specs. As for the 10,000 psi increase and primer/shell issues, I've not seen it and believe it is overblown in the article. Point of impact bears this out as I've shot both out of my Ruger M-77 with the .223 throat.

Also.. American rifles are built with a huge degree of safety as to pressures. If ammo manufactures were worried there would be warnings on every box. There is not.
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Offline hunter399

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Re: .223 / 5.56 Shooting & Reloading Questions
« Reply #2 on: April 07, 2021, 11:23:54 AM »
If it was me,I would probably just go with 223 ,then if you ever want a bolt gun,mini14 ,or this or that gun all your rounds are pretty much "safe".
With that said.......
I'm sure as your reloading and "working up" for your rifle.
You could make hot enough loads in 223 that you would be happy with.
Maybe somebody with more experienced will chime in.
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Offline BULLBLASTER

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Re: .223 / 5.56 Shooting & Reloading Questions
« Reply #3 on: April 07, 2021, 11:47:37 AM »
Here is some pretty good info.
https://ultimatereloader.com/2018/08/05/223-vs-5-56-facts-and-myths/


Imo if you are handloading for a specific rifle it doesnt really matter as you tailor sizing, seating depth, and charge to that specific rifle. Just work up a safe load.

Online mazama

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Re: .223 / 5.56 Shooting & Reloading Questions
« Reply #4 on: April 07, 2021, 11:52:00 AM »
Military rounds if I remember correctly have crimped primer pockets,also you need small base dies for reloading semi autos, so the function,new factory will function will function in bolt and auto.

Offline fowl smacker

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Re: .223 / 5.56 Shooting & Reloading Questions
« Reply #5 on: April 07, 2021, 11:56:42 AM »
Military rounds if I remember correctly have crimped primer pockets,also you need small base dies for reloading semi autos, so the function,new factory will function will function in bolt and auto.
You don't need small base dies for reloading for semi autos.  I've reloaded and shot thousands of rounds through my AR's with no issues at all from standard RCBS and LEE .223 reloading dies.

Offline 300rum

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Re: .223 / 5.56 Shooting & Reloading Questions
« Reply #6 on: April 07, 2021, 11:59:35 AM »
That is correct, you don't need small base dies.  If reloading for a semi, use a Dillon Case gauge, it will show you what you need to do as far as trim length, bumping the shoulder, etc.  If it works in the Dillon Case gauge it will run in your rifle. 

Offline hunter399

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Re: .223 / 5.56 Shooting & Reloading Questions
« Reply #7 on: April 07, 2021, 01:37:24 PM »
I've loaded for my ar with just lee dies ,I'm cheap,it's what I got.
Do you want to make copy cat miltary rounds or are you making hunting rounds or both.
I've never reloaded 223/556 but I have loaded a few that are similar and even have the same case.
I do know when you buy 223/556 most military rounds are not hunting rounds. So I just bought Alot of 223 softpoints .
Two birds in the Bush is always better than one in the hand-that way you can always go to the Bush and hunt another day .conservation=Better hunting.
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