Originally Posted by MontanaMarine
There was a poster on another forum who compiled a lot of chrono data of various 5.56 ammo. He tested in barrels 10.5", 11.5", 12.5", and 14.5"

It's kind of a nutroll to go through all the attachments, but definitely worth a look if you are interested in how factory offerings compare.

Here's the thread,
https://www.ar15.com/forums/AR-15/S...2-5-and-14-5-ALL-DONE-/16-714088/?page=1


Here's a summary sheet,
https://www.ar15.com/media/mediafiles/23126/SD-Ammo-SxS-233178.JPG
Yes definitely interested in factory Ammo comparisons,
Thanks

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