still have a 'bit'
When Western stopped making WAP for Winchester they ever-so-slightly tweaked its formulation, enhancing both its flash suppresant and temperature reduction, and called it Silhouette.
Data is interchangeable with WAP.
Rumor has it that in the 'old' days W296 was not H110; H110 was W295.
Hope this explains to those with old lots of both why they look and act so differently.
"all my ammo is mostly retired factory ammo"