It's impossible to tell from a picture. But you don't really need to know the brand to load them.
If they're 55 grain FMJ, use the data from any of the manuals. Unless you're loading primer cratering maximum, the brand isn't significant for ball type ammo.
(In all likelihood, they're Remington or Winchester.)
And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.