Well you sort of have to until the line change the law.

However, I must disagree with you if the laws change. Yes the 16” performs better but the .300blk is designed to burn all powder out by 10.5”. Therefore, you don’t have much muzzle blast post 10.5” and you do not lose a ton of velocity. A pistol length .300blk lays nicely in your lap when in a tree stand. For ammo the 110 or 120ttsx performance is great! As far as optics go, I am a glass snob so I always get all I can!