Originally Posted by
constructor
The Wylde has a longer freebore than a 5.56 but the diameter is smaller to align the bullets on the bore better.
Attachment 68322
I've shot every kind of 5.56 ammo available out of Wylde chambered barrels with no issues. I've shot the same ammo out of the 5.56 CLE chamber with no issues and none of it is as hot as my own 62gr gold dot load, 26.0gr CFE lake city brass, Russian primers and Gold dot set to 2.248" I run a .073" port on a midgas 16" 5.56 CLE chamber barrel with a red spring and H2 buffer and it locks back, the real 5.56 M193 or 855 ammo doesn't even lock back.
I’m sure you already know a good bit about this, but CFE223 produces a lot of gas drive at safe chamber pressures. 26gr with a 62gr bullet probably has another grain and a half to go till max. Hornady lists 27.7gr (double-check that before loading, work up, etc.) with their 62s. I’m pretty happy with 26gr and 62gr FMJs for 0-300m, myself, and thats one of my high-volume loads for the progressive. Runs in anything, shoots straight, doesn’t beat up the gun or brass.
Most any gun will run on (but provide poor precision) only 24gr, which is right about starting, but like I said its a gassy powder. I tested that in a lightly gassed extended midlength 16” a couple years ago.
On the chrono, more recently:
16” Geissele/Sandman K
M855 (real, not XM or other commercial)
Av 2937
Es 85
Sd 26.6
26.0gr CFE223/Hornady 62FMJ
Av 2735
Es 49
Sd 15.4
Same day; same temp. Anyway, I wouldn’t consider 26gr CFE223 to be hotter than .mil ammo just because it locks back, in a discussion about chambers. Of course, powder lots can vary a bit, though they’ve been pretty consistent for me.
RLTW
Former Action Guy
Disclosure: I am affiliated PRN with a tactical training center, but I speak only for myself. I have no idea what we sell, other than CLP and training. I receive no income from sale of hard goods.
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