Very different bullet to the BTSP you and I been using @stevodog, its a bonded bullet. Its not listed as a hunting bullet by Speer, its marketed as a personal protection / duty bullet.
I looked for an half an hour or so for writeups on its use in hunting, there's not much out there at all. Lots of very positive reviews about accuracy.
Federal and Speer are both owned by Vista, but don't think the Fusion and the Gold Dot are the same as one is 165gr and the other is 168gr. Also, the Gold Dot has a rebated boat tail, which the Fusion doesn't.
I'm a little wary of bonded bullets as I usually prefer frangible bullets like the BTSP, however these Gold Dots are interesting as some of the expanded mushroom photos look very impressive.
By the way I got onto the importer of Speer products and was told that Speer has some form in dropping product lines and leaving guys like us in the lurch. They are trying to find a competitive point of difference to ELD and TMK etc etc and hence the fancy packaging, new names, new designs and so on. I'll be annoyed if they don't bring in the BTSP anymore, I only started with it recently and it was extremely impressive on our red deer.
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