Re: 6.8 SPC ?
I love the 300 WTF (i.e. 300 BLK, Whisper, Fireball, 300/221, etc) for its suppression capabilities. However, the 6.8 is much better in the supersonic realm. If you don’t plan on running a suppressor I would go with the 6.8 hands down. If you want to run heavy projectiles...