Also, it looks like Grizzly Cartridge is where any inquiries into Cast Performance end up...not sure if Grizzly bought CP or if they're just sister companies. On the Grizzly home page, it has a similar comment about the lube:

About our bullets:

  • OUR NEW, PROPRIETARY CLEAR LUBE NOW COATS ALL OUR BULLETS.
  • Our hunting bullets are cast from LBT style molds.
  • Our bullets are cast from virgin alloy and heat-treated to a Brinnel hardness of 18-21. This provides for a hard yet ductile bullet, which will not fragment, or blow-up on the toughest hide or even bone.
  • We manufacture both gas checked and plain base for most popular handgun hunting calibers.
  • Our bullets do not lead your bore. Our lube has allowed us to shoot our cast bullets in test rifles as fast as 3100 fps.
  • Loading data is included with most of our products.


I loaded up a small ladder with each bullet type (DT and CP). Five rounds each in .1 grain increments of Longshot. I'll chrono those and see how they compare to the velocities I get from the Underwood ammo I bought. I will say that the CP bullets were much nicer to work with than the DT bullets because of the clear dry lube. The wax-based lube of the DT was messier. However, if the performance of both bullets is the same, the DTs are about 2/3 the price of the CP. Snowing again here in SD so we'll see what the weekend brings...hopefully I can get out and chrono these.