I can't attest to this product specifically, but $220 for a 3.5lb aluminum tripod seems like rape to me.
I'd source a cheap photographic carbon fiber tripod w/ballhead. Something like this:
Dolica Proline 60" Carbon Fiber Tripod with Ball Head Bundle ZX600B103
Then cobble a similar rifle-cupping v-bracket from materials at your local Home Depot and attach it to the quick-release plate on the ballhead.
You will have a lighter, better support and a v-bracket "custom fitted" (by you!) for your rifle for less $ and better performance.