Bullets for 1/30 twist

[Dave Roelle]

Hi Folks-------------my shooting partner just received a vintage HighWall chambered in 45/90----twist appears to be 1 in 30 inches (original 30 inch barrel)

Nice rifle with an original short mast rear aperture sight( no windage adjustment) with a Winchester windage front sight .

Seems an odd combination of chambering for what seems to be a relatively short range sight set ------------

What bullet weight/length is recommended for the 1/30 twist ?

Thanks for any thoughts

Dave