Double Tap Brand Ammo

Anyone have any experience with them? I was doing a search for 110gr 300blk Ammo loaded with the TTSX bullet as DocGKR has mentioned they're good to go as long as they're loaded correctly.

Anyway this brand has them about a dollar cheaper for a box of 20, but I have never heard of them.

With the extreme cost of 300blk any potential savings is worth looking into. For info this is for a 9" home defense SBR that runs unsuppressed now but will be suppressed in the future.