300 AAC Blackout Accuracy Issues

[alberta tactical rifle]

I use SSK 300 Whisper dies and have both a 300-221 chamber and a 300 Blackout chamber and use converted 221 Fireball brass as well as cut down 223 brass and everything seems to work fine.

Pretty much mirrors my experience too.
Not having as much time as I would like to have for loading, I have switched over to Hornady's 300 Blackout brass to save the dickin about cutting down and sizing 223 brass and it works wonderfully.
Out at the range yesterday the 5" gong at 300 yards was not much a of a challenge to hit repeatably with 125 gr spire point ammo another client brewed the recipe for.