From there it runs southwards for 50 km, past Bakerville, to Lichtenburg, where it reaches a junction with the R503 (Swart Street).

The R505 joins the R504 and they are one road eastwards for 2 km, reaching a junction with the N12 national route.

The R505 then becomes co-signed with the N12 south-west for 2.5 km before becoming its own road southwards in Wolmaransstad's southern suburbs.

[1] From Wolmaransstad, the R505 heads southwards for 10 km to the town of Makwassie, where it crosses the R502 at a staggered junction.

From Makwassie, it resumes southwards for 37 km to cross the Vaal River into the Free State.