I used a similar Machamp set absolutely ages ago, perhaps even before Machoke was discovered. I've revamped it a bit, but I still haven't been able to test it fully, as there are too few people on the server. I'd still like to know exactly what EspyOwner uses. Even so, it is clear that this Machamp set carries several advantages over the more common Machoke. The greatest of these is the ability to carry Lum berry. If someone is relying on sleep moves to deal with Machoke, this may well give them some serious problems. Secondly, it has the ability to hit much, much harder. If you can support it with Stealth Rock to break Sturdy, it will easily OHKO Magnezone with +1 DynamicPunch, and will do excellent damage to most other sturdy Pokemon. Thirdly, stuff that outruns this at +2 is perhaps even rarer than stuff that outruns Machoke under TR, given that most things with greater than 130 Base Speed are frail, and that Choice Scarf Pokemon can become setup bait. Trick Room can also disadvantage certain teammates. Finally, though this is not usually relevant, I like to use this on my Baton Pass team. Baton Passing to Machoke is utterly futile.
What Machoke has over this though is quite a lot of bulk. Machoke's defense is roughly 1.5x better, taking into account the fact that it can run max hp/def and Machamp can't. If you use a Scarf Machamp as in the OP, it will obviously be even frailer. Therefore, Machamp cannot afford to take so much damage while setting up. It needs to be in pretty good shape to defeat Ursaring. Ironically, Machoke is actually one of the easiest Pokemon to set up on, as long as Trick Room isn't up.
The spread lets Machamp outrun base 130s at +2, and then maximises defense, which is absolutely necessary for Ursaring and other priority Pokemon. Two Ursaring will still beat you, but at least you can take out one. Even Machoke will often fall to two Ursaring. This set's power is still sufficient to deal with Magnezone and other Fighting-weak sturdy Pokemon. Even with maximum power it still isn't going through Skarm. The fourth slot is mainly just filler. A sleep move can help against sturdy Pokemon, and can help Machamp to set up. Hypnosis > Spore just in case the opponent has a Sap Sipper Pokemon (of the non-Grass-type sleep moves, Hypnosis has the highest PP. You can use Lovely Kiss or Sing if the idea of that amuses you). ExtremeSpeed is very weak but if you have space for it, why not? You might just take down a weakened Ursaring. You could use Agility instead of Shift Gear, which would then let you use V-Create in the last slot. With an Adamant nature you can guarantee to OHKO Skarmory with it in the sun after SR. I think this is too situational, though.