He seems to have flown the coop. Never one time responded and hasn't been on the forum since July, 2017. Guessing that he wanted everyone to say the 7/08 was a pathetic caliber?
I think he was looking to be convinced but didn't want to be. He posted the same question on multiple forums, and there's nothing wrong with that, but I think he was looking to be talked out of it.
Fwiw my family has killed a bunch of bulls with the 7mm-08, from 68 yards to 407 yards. Shoot a bull through the lungs with a good bullet and he'll die, sooner than later. It ain't rocket surgery.