Hollow base mould makers

[Steveu]

All,

Are there any mould makers that make hollow base rifle moulds? I have been reading about on the 43 Spanish and it seem that the best GG bullets were from Remington and they were hollow based. The Lyman mould looks like a good copy of the original bullet, but it has a flat base. I am not interested in PP bullets.
Cheers,
Steve