Have not heard bullets called slugs before but I use precision delta for plated bullets. https://www.precisiondelta.com/products/45-cal-230gr-fmj/
and summers enterprises for hi-tek coated Bullets. https://summersenterprisesllc.com/product-category/hi-tek-45/. I typically load 200gr but both these companies have the 230 gr SLUGS.
Jacked Round Nose. as in the type used in 1911s since 1911. just looking for something on sale to sling out a the bbl, not compete with. rejects and seconds would be fine.
Slugs are the little round knockouts you use to fool the soda machine.
before them put magnets in the machines.