Yes, although they will have sprues, so they aren't perfectly round. They work good enough.
I recommend WW metal with some tin, water dropped from the mould.
The mould is a LEE, gang style. Its okay.
I assure you they will be harder than any commercial pellet, even copper plated ones.
I don't recall the load, but I think it was with Longshot in the Hodgdon manual.
Good advice. I used Blue Dot and Herco in my loads. Works just fine at close range. Instead of cream of wheat or other filler, I used smaller shot to fill the gaps between pieces of buckshot.
