I think both rounds from Ranger is good ammo to use. The difference in the bonded ammo is that the metal jacket is bonded to the core to prevent jacket separation when the bullet deforms and expands. If I was buying ammo in a store and had a choice between both, I would go for the bonded of course. However, if they didn't have any of the bonded rounds in stock, I wouldn't hesitate to use the regular Ranger T's. I'm not going to sweat things if there happens to be some separation of the jacket from the core on impact and penetration.
I'm sure someone will chime in soon and provide more data between the two rounds than what I can offer.