Bullet construction is more important than weight.
62gr fusion is a great round.
77otm tends to penetrate less than 62gr m855
155gr vmax 308 penetrates less than 62gr fusion.
No they are not. The Colt MARS is experimental and the KAC PDW round would probably needed to be contracted in the 10,000's/year for them to even sell it to you.
But these are what I think represents the best round for the 0-200m fight. The closest you can get to these cartridges commercially is the .221 fireball.
Bookmarks