300 blackout in pistol length barrel

[historicfirearms]

I want to build an AR pistol now that I've handled one at my local gun shop. I'd be interested if anyone has any velocity data for the 300 blackout in a 10" or so barrel. I think the 300 would probably be a better choice than the 5.56 in a pistol.

[GARD72977]

search for 300 whisper data. It was very popular in IHMSA a few years ago.

[Jupiter7]

It is a much better choice in short barrels. I've got a 10" 300blk pistol.
Link to thread from some boolit chrono data:

Post #14
http://castboolits.gunloads.com/showthread.php?211817-300-Blackout-AAc-150-grain-lead-cast-bullet-load-Anyone-gottem-to-cycle-in-a-AR

I've run about every .30 cal boolit I can get my hands on, I've got more data if u have questions.