7x57 Rolling Block

[Lightning Ross]

I have a 7x57 Remington rolling block short barrel saddle ring Uraguay stamp on the stock. It is in great shape Tight with a mint bore. I was wondering what was the bullet weight used in the old 7x57. I imagine in that time it was a cast lead bullet. And what was the bullet speed.I would like to keep it origanal and shoot as close to the loads it was made for. It has been checked out by a smith and iit is in great health.Although the barrel has not been slugged.