Is the difference enough to warrant a special chambering? When shooting .223 and 5.56 I can feel the higher pressure of the 5.56 but the difference accuracy wise is fairly small. Am I missing something?
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5.56 chambers are shorter, a .223 Wylde chamber has a larger freebore which is better for heavier/longer projectiles you typically find in match .223 Remington ammo but it can still handle the higher pressure of a 5.56. It’s good for people who want to shoot farther and more accurately yet don’t want to use match ammo for plinking. Similar to how I shoot 175gr SMKs past 500yds and use M80 ball within 500 out of my AR-10.
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Here are a couple articles that helped me see more of what it’s about. There’s also a Wiki on it, but I thought it needed some clarification in areas.
Another article on .223 Wylde
Article on .223 Wylde
I think it’s pretty cool that PSA has several uppers with .223 Wylde available. For me, it’s a no-brainer for preference - you get the best of both worlds.
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Thanks for the links, much appreciated 
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The Wylde articles were an eye opener for me. Very interesting.
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Also many people find the 1:8 twist rate that a .223 Wylde uses to be the best, or most ideal overall twist rate to fire different grain projectiles with compared to the 1:7 or 1:9 that are more common in a 5.56 or .223 Remington barrel. You can get barrels for those specific calibers with a 1:8 twist rate though. Still why not use a Wylde barrel if it works perfectly fine, is a quality barrel, is available for a fair price, and is accurate with all these calibers.?.?
BTW sorry for bumping an old thread. I didn’t pay attention to this being a thread that’s nearly a year old.
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