When it comes to velocity, I have no idea since I don't have a Chronograph, but I think you will really like this bullet. I've learned to love it and with the right powder charge it's shot well in everything I've shot it in.
That being said, I've found that every gun I've tried them in prefers the Harvester Crush Rib sabots. I'm not sure which ones you got, but it's also possible that yours may like one or the other better. It's not a horrible idea to order a box of each.
That being said, if anyone wants to buy a box of the 50 regular black Harvester sabots, I have a pack I'd sell as I switched to the crush ribbed ones.