AR15 Upper Build - 223 or 22GT

[HuntingBronco]

So I have the itch for a 22 cal upper build. Have 223 covered, love it, accurate and economical = boring. Not super impressed with all the hype surrounding the ARC/Valkyrie options, however, I am intrigued by the 22GT. Could also be persuaded to go 20P, but I don't think it has the legs. Anyone care to share their thoughts on a 22 cal upper? This would be a heavy upper (20"-22") with small groups as the primary goal. I would like to reliably connect with bowling pin size targets out to 500yds (beyond would be great.)

Info on the 22GT for AR15 can be found here. (I don't know these guys)

22 GT AR15 - SD RIFLES

sdrifles.com

 

[KNOTFERSAIL]

I'm not super familiar with the GT or 20p, but the 22 nosler might be worth a look.

I have a WOA 24" 8tw upper in 22 nosler that flat out shoots anything I have fed it..50-69 gr of various brand of bullets & powder. I haven't tried any of the super heavies and probably won't. Ballistically not to shabby, either.