[Beckett]

I obviously need to shoot another group to gather more information. (In Dallas, TX by the way)

We were shooting 1/2 dozen guns, letting barrels cool every 3 shots and wind was minimal. Groups on the other 5 weapons at 100 yds were excellent and the 300 Blackout was all over the place. I don't believe temperature, wind or humidity was the problem because that didn't affect the accuracy of the other 5 guns.

I am gathering from the comments that accuracy should be better and I either have equipment malfunction or operator error. Just trying to find out if there was something simple I was doing wrong like using a "known" poor performing ammunition or not breaking in my gun correctly.

Thanks for all the help and suggestions! I'll try again and see what happens.