Originally Posted by DONSTER 125
i was planning on upgrading my M14 to 400 fps +/- 10fps. That, along with a Prometheus 6.03mm inner barrel (as well as internal upgrades). I was also planning on using .28g bbs. am i to understand that my accuracy will be worse now because of that?
No, why would you think that? Tightbore + heavy BB's = better accuracy.