at blackout speeds I don't think I"d be looking for bonded. But then the only reason for a blackout for me is subs. Even super sonics are not very fast and hence a tougher bullet isn't what I'd be after.
Ballistic tips, which I hate with a passion, run just right, 125 grain out of 7.62x39 speeds and act like a normal bullet at those speeds.
YMMV
Id also be looking at a ballistic tip or game king, or interlock at those sedate speeds. Absolutely no need at all for a bonded or premium controlled expansion bullet.
The bullets the OP is asking about are neither bonded or premium - they are a plated bullet. The title and the box both say bonded, but that's bad advertising IMO; the description says they are plated. To the OP - that means a pure soft core, and a thin soft copper coating over the lead. Even a coated cast bullet holds up better in the barrel.
I would not waste my money on a plated bullet for 300 Blk supersonic loads unless you're just looking for the cheapest thing that'll go bang. I'd pass and find something else.
For a cheap bullet that shoots well in the Blackout, look for the 125gr TNT.
For hunting bullets the 125gr Nosler BT is a great choice, and also a good shooter.