I just finished shooting 10rnds at 100yds!!
300 Blackout/Whisper
190 gr Hornady BTSP
10.5 gr 4227
cci 400
LC brass
coal 2.240"
I fired 6 rounds then had a flier ( when I got finished cursing) I fired 4 more to have a total group of 10 rnds.
[IMG]
[/IMG]