Extreme Shock Ammunition are producing a .50 BMG projectile that can penetrate 1″ of meal and yet will not over penetrate soft tissue. The Fragmenting High Velocity (FHVL) round is made up of a propriety tungsten powder/flake compound.
From the press release:
Extreme Shock Ammunition, known for producing the world’s most advanced ammunition, continues to raise the bar with the redesign of their 50 BMG ammo. It is the only 50 in the world that will penetrate 1 inch of metal but will not exit a soft tissue target. Extreme Shock Ammunition continues to impress with the astounding performance and safety enhancements found in their 50 BMG.
The Fragmenting High Velocity (FHVL) Round is a lead-free replacement that offers far superior tactical capability over the lead core bullet. The FHVL has the same range and accuracy as a lead bullet of similar weight. Long range, reduced ricochet, controlled penetration, and exceptional accuracy make the FHVL the most technically advanced tactical round available today. The FHVL grants the operator enhanced tactical capability, such as controlled penetration (NO EXIT) and increased ability to eliminate threats instantly, all while eliminating ricochet and over-penetration hazards.
No military at this point in time is going to use expanding anti-personal expanding ammunition because it would be in breach of the Hague Convention (1899) (regardless of wether they signed it or if a 110 year old treaty is worth honoring). I cannot see civilians needing or wanting to use this ammunition and I cannot recall seeing photos of cops with .50 BMG rifles. I think this ammunition is likely being marketed to paramilitary / anti-terrorism / internal security forces such as the Mexican Army who regularly conduct internal operations and who like their .50 Barretts.
The cost is $161.14 for a box of 15 rounds.