Fellas, I'm looking for some info on the 300 AAC Blackout, 300 Whisper (TM), 300-221...whatever you wanna call it! ;D

I'm in the process of starting a new project with a Encore pistol frame. I'm wanting to do the 300 Blackout chamber but I'm not certain of what twist to go with.

The barrel will be in the 12" length range and I'm only wanting to shoot bullets in the 110-130g range at supersonic speeds. Specifically looking at using the 110g Tipped Triple Shock X bullet. I really don't think an 8 twist will be needed here but I'm not sure if I wanna go real slow with the twist given the short barrel.

The last thing I wanna have is a barrel with a twist that's too slow to shoot anything!