.223 Wylde AR Upper Short-stroking problems

[caleb90]

Caleb, what is the twist rate, 1:8 perhaps?
And what weight of bullet are you shooting?
My 223 wyldes handles the heavier, 69-77 gr bullets and Nato spec loading pressures better than lighter weights, it is also a new barrel...
Plus, the 77 gr Federal SMK GM also shoots too softly to cycle it.
I switched to a Nato 77 gr load and voila! good cycling, shootin' and not bad groups.
Might want to check this angle in your troubleshooting.
Assuming assembly is all ok.
O btw I'm shooting a carbine stock and buffer system, still gtg on the 77 Nato's.

1:8 twist and shooting factory federal american eagle and umc 223 55gr