And YOU would be the authority on that!

If you make the bullet bigger, it adds weight. Weight decreases your velocity. Weight also adds much more logistics problems when shipping ammo to battle zones. Hence the polymer case idea that is taking off now.

Which is a 1000X more important than BC in a combat weapon.

Not the bullet, the case. Increase the case capacity of the 6.8 by enlarging the diameter of the case. You could then also neck it down to 6.5 and really have something.

6.5 grandel can do 600 yards

And who is going to train all of the troops in long range shooting?

The Grendel groupies will be along shortly to tell you how wrong you are and call you names. I've broken 2 Grendel bolts, myself.

They can’t train most of them how to zero a rifle.

Then they suck as trainers.

Then it won't fit in an AR-15 platform. You have a max length of 2.250" (or 2.260") as max length.




If you make the bullet bigger, it adds weight. Weight decreases your velocity. Weight also adds much more logistics problems when shipping ammo to battle zones. Hence the polymer case idea that is taking off now.

Y'all are forgetting that the military used to have long range guns. M1903, M1903A3, M1903A4, M1 Garand(M1C and M1D versions). Then there was the M14 that the M16 replaced. Why did they replace the M14 with an M16? Without going into the FN FAL in 7.62 was better than M14 deal. Biggest reason was weight. For the guys advocating for an AR-10 platform, I'd suggest you mount a small optic, light and handle. Then put a 30rd magazine in one and carry it at port arms for 5 miles. Oh, don't forget the body armor and equipment and the rest of that 210 basic load in magazines.

My guess is the Army will go with a 6.8 SPC II with a 85-95Gr FMJBT bullet in a piston driven rifle very similar to the M4 with a 12.5-14.5 inch barrel. Remember this thing will have a suppressor. My guess is good as the next guy on the SAW type weapon. I'd bet that will have a 18-20 barrel for a little better long range performance. I don't remember how long the barrel is on the Saudi Arabian land forces 6.8 SPC SAW type weapon is, but they already have one. They also have an LWRC with a short barrel in 6.8 SPC.