Those are the plated HP that Berry first introduced about 4 years ago to compete with the Speer
Gold Dots. Berry calls them the
Hybrid Hollow Point, and they took about 2 years to develop. They are
not jacketed, they are thick plated. They should also
not be confused with their run-of-the-mill
Target Hollow Point offering, which has a thin plating.
The big advantage is that Speer sells the Gold Dot in 100 packs, while Berry sells theirs in 100, 250 & 1000 packs so the price ends up being hugely favorable toward Berry.
I have loaded these over N340 and BE-86. Berry recommends a specific velocity (1050 to 1150fps), so if you want to load these yourself you'll need a chrono. The 124gr works very well in the CZ barrel, although I have not tried the 147gr. In my testing, the 124's were very accurate. I load them for use on animals because my wife and I walk trails and back roads every day and our county has issues with rabid fox.
These have been as rare as unicorns for about 2 years, I'm glad to see them coming back.
Load testing and photos from May 2019 listed here...
https://czfirearms.us/index.php?topic=104486.0