Does anyone have any links/info on this round?

It was Winchester’s attempt at developing a Raufoss Mk211 look alike. Brochures made up, some prototypes done, but, like FN’s project, it was easier and cheaper to just license Raufoss’ design. Never went anywhere.

Any way to ID the rounds? X ray?

And diagrams available?

I don’t know of anything they shared on internal construction of the bullet itself. It was to be a yellow tipped round, Winchester Anti-Light Armor Piercing…WALAP. That’s about it for details.