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whats the deal with 223 Wyldle?

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  • whats the deal with 223 Wyldle?

    I have a 6.8 with an A2 style lower and was thinking about a 5.56 upper as an extra upper.
    of course everything is out of stock. So I may have to build. What is the deal with 223 Wilde chambered ARs? I am just looking for something simple and light.
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  • #2
    Basically the 5.56 and 223 are identical except the case of the 5.56 is a hair longer. If you have a tight 223 chamber the 5.56 will not fit and it was designed that way, as 5.56 is supposed to make more pressure. <br/><br/>223 Wilde has a longer chamber and can fire both without issues or bolt not closing. <br/><br/><br/>Sent from my iPhone using Tapatalk
    Last edited by Daveinthebush; 11-19-2020, 12:03. Reason: Corrected 55 to 56


    • #3
      The 223 Wylie will let you shoot both 5.56 and 223 safely without loosing the accuracy that you can sometimes lose with 5.56 as compared to .223. I have a .223 Wilde barrel and 5.56, the Wilde barrel I shoot 85% of the time compared to the 5.56 one.


      • #4
        I believe the chamber dimensions are the same in all three. The difference comes in the leade angle, freebore length and diameter. Hereís a decent run down:<br/><br/><br/><br/>As a side note, I have shot lots of 5.56 in .223 bolt guns. I guess Iím just lucky according to the Internet, or my .223ís were all so shot out that the throat erosion removed any pressure issues. The Wylde splits the difference in the throat making both rounds fall within the pressure tolerances set forth by SAAMI.


        • #5
          Click image for larger version

Name:	LJ's Ruger .223 vs .556 Ammo.PNG
Views:	113
Size:	100.4 KB
ID:	2763989 Well,,, for what it's worth, I to have been shooting .556 in my Ruger .223, no sticky extractions or case issues with .556, there was a blog-post/thread awhile back on a Ruger Forum that I was reading,,,, and the long and short of that conversation was, that Ruger actually is VERY generous with their Chambering Bore on many .223 Rifles, ie... knowing full well, that the .556 is going to get Chambered, whether they like it or not,,,,, as per this blog/post guys comments, his information was coming from the inside..... so, there you go, make of it what you will......

          Click image for larger version  Name:	LJ's Ruger M77 Hawkeye Predator .223 Rifle_01.jpg Views:	0 Size:	19.6 KB ID:	2763876
          Last edited by The German; 11-24-2020, 10:42. Reason: Added Info:
          [ USMC 1st Marine Div. 7th Engineers, VietNam 69-71, Semper-Fi ] :topjob:


          • #6
            couple of years ago I was at the range and a couple of old gentlemen were having problems opening the bolt on their rifle that was chambered in 223. They were firing Winchester 5.56 in it and had a round that had the primer blown out.
            I explained to them that it wasn't safe to do this for reasons already discussed. The range master wasn't very happy with them at all. Here is a good article that goes into a little more detail. Be safe.



            • #7
              Actually Wylde is the last name of the person that developed the chamber in the .223/5.56 barreled platform. He designed it to accommodate the .223 and 5.56 round.
              There has been a lot of debates on if it is wise to shoot 5.56 in a .223 chamber and vice versa. What he did was take the argument out of the equation.


              • #8
                gbflyer is correct about the differences. The chamber of .223 and 5.56 are identical for the bullet casing. Same length, same shoulder, same neck, same angles. The free bore on the .223 is slightly tighter and shorter. The intent was to give as much leeway to the 5.56 NATO round to minimize jams/issues. So the free bore in 5.56 is slightly longer and larger diameter. The Wylde chamber is a hybrid of the two free bores. It's closer in length to the 5.56, but close in diameter to the .223. The throat angle is slightly more gradual than .223 to allow for higher pressured 5.56 rounds. Think of it more like a match chamber with tighter tolerances than the 5.56. Keep in mind the higher pressure of the 5.56 doesn't come from the chamber, it comes from the case internals. You can load more powder into a .223 case and it will end up being a 5.56. For instance, Hornady load data for 62gr, .223 using H335 is maxed at 22.9gr. Same bullet, same powder allows up to 25.4gr of you're loading 5.56. Nothing has changed between the two. Only the amount of powder.


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