In my search, I couldn't find any.

I'm not talking about barrels and parts, I'm talking about complete functioning semi-auto AR-15 rifles with some sort of reasonable magazine capacity.

Tony

Also curious, but I am patiently waiting for the 440 Legend

Or perhaps the 429 Legend, but they like round numbers

Was the gun being fired repeatedly in semi auto, being fed from a magazine?  Or was it just single shots?

Tony

Man, that is   S  L  O  W   compared to a 200 gr. XTP out of the .400 SOCOM.  The   video I looked at said 2250 fps but was single loaded in a bolt action rifle and no chronograph was set up.  That's still slow compared to the .400 SOCOM.

In this video it was over 400 fps slower than the box advertised 2250 fps (20" barrel) with a two inch shorter barrel (18" barrel), giving only 1820 ish fps, and he could not get even two rounds to fire without it malfunctioning (AR and magazine fed) when shooting through the chrono while holding the rifle off hand.  It worked OK off the lead sled bench though, again, mag fed AR.  It grouped well but I did not hear the range but it looked like no more than 50 yards, maybe even 25.  I did not listen to every word of the video so if he said the range, I missed it.  Regardless, not impressed.

Look up the YouTube channel The Turkey's Opinion.

He has been working up a .400 Legend upper for a year now.



Unbiased results from either perspective.

T II (T2?) Armory developed his barrel and upper.

Best,
JBR

My thoughts exactly.

Options are awesome, and new sources of brass to wildcat with is always good.

But I was so very excited for a 10mm rifle round only to see these rather Turdish numbers..

Honestly the stupid new 360 Buckmaster rimmed case from Rem impresses me more than 400 Legend, and I thought that was bizzare choice as well.