Question for the Gentlemen of the Accurate ARs

[cyclopsshooter]

Hello- I have been slowly putzing around, collecting components from Olympic P.C.R. rifles. (i know i know- but they are good quality and dont cost much!) My aim has been to have one lower and swap between a carbine upper for plinking/screwing around, and a target upper- I'm on a budget $300 for a vortex scope- A3 upper (substituting an Yankee Hill Machine/Cerro forge upper (Are the YHM uppers adequate?)) At th heart of this upper is a 5.56 1/9 stainless steel 20" heavy barrel from a 2004 Olympic arms rifle (with its matching bolt carrier group) will this 20" barrel be adequate for a sub in group at 100 yards? how bout 200?
I was advised today that I should get a 24"... but I already own the 20"...

I'm not trying to win any championships but I want to be able to reliably hit a pop can at 150 yards-

Thanks for any advice!
Cyclops

 

[rskent]

If you already own it, It costs you nothing to try it. It’s not the length of
the barrel that counts. It’s the quality of the barrel and ammunition. I
would load up some 52 grain match kings and give it a try.
Steve

 

[JDGray]

Good ammo, freefloated handgaurd, should get you there!

 

[cyclopsshooter]

Thanks much, i will give it a go!