The good news is, you've got your wish. The bad news is, it's not our round. It's Russian, the Kitolov-2 120mm projectile for use in 120mm mortars. Range 9,000m, We'll be along shortly, I expect.
I believe the first of the new generation of bunker buster bombs was an 8" cannon barrel, filled with liquid HE, and given a laser guidance package.
That was in the waning days of Gulf War I. The bombs were still cooling from the HE when loaded for transport.
Final delivery was by FB111's.