You can hit out to 1k yards, but anything past 200 yds with 55-62gr bullets will not produce the best results because they will have fallen below 2400 -2500 ft/s, which drastically reduces the likelihood of devastating wound channels, which in turn ultimately defeats the purpose of those very light and fast bullets.
Will a bad guy feel a 55gr projectile at 300 yards? Yes, more than likely; however, I'd rather the bad guy definitely know they've been hit and definitely not have any fight remaining after one hit, which is why a 6.5 Grendel or .308 is a far better choice cartridge for shots beyond 200 yards.
No. The typical 5.56 round is good out to 150-ish yards at best (terminal ballistics).
Unless you are a blind, geriatric shiver twit, there is zero need for a bipod inside 300 yards.
As well, a vertical foregrip is for close quarters work. It's usable for shots inside 150-200 yards, max, but not at all necessary.
Anything is possible, but this is like putting jet engines and props on an aeroplane. An airframe is designed for one or the other - not both.
Effective range 556 is 300 yards. Still feasible past that
You can hit out to 1k yards, but anything past 200 yds with 55-62gr bullets will not produce the best results because they will have fallen below 2400 -2500 ft/s, which drastically reduces the likelihood of devastating wound channels, which in turn ultimately defeats the purpose of those very light and fast bullets.
Will a bad guy feel a 55gr projectile at 300 yards? Yes, more than likely; however, I'd rather the bad guy definitely know they've been hit and definitely not have any fight remaining after one hit, which is why a 6.5 Grendel or .308 is a far better choice cartridge for shots beyond 200 yards.
Heres a good reference
You know different muzzle lengths determine velocity right?