Rail Gun Projectile Cost
One of the selling points of the rail gun was that the projectiles would be much cheaper than any existing munition because the projectile would be an inert lump.
sNIP...A second limitation is that the projectiles are unguided although a guidance package is being studied. Thus, the projectile can’t track moving targets and can’t accept laser guidance. The targets must be fixed and the co-ordinates known.
And I stand corrected...the picture you show is of a future, proposed maneuverable round that hasn't even been made yet.
To complement the prototype railgun BAE Systems is developing for the U.S. Navy, the company is also working on the Hyper Velocity Projectile (HVP). Equipped with accurate guidance electronics for in-flight maneuverability, the HVP features a low drag aerodynamic design enabling it to fly at high velocity and decreasing time-to-target. Not limited to use only with electromagnetic railguns, variants of the HVP are also in development for conventional artillery like the Navy’s 5-inch (127-mm), 62-caliber Mk 45 Mod 4 gun system, as well as the 155-mm Advanced Gun System (AGS).
The other rounds are the ones in use. You get a point though, but for practical purposes, just like the article says, it will be pretty much non-maneuverable.
I'm man enough to admit my error.
Now back to the issue. What have you got that proves the Earth isn't flat. Show me and I'll admit I'm wrong.