We use a coating brand called Hitek to coat my bullets. It works like a stain by adhering to the lead and penetrating its pores. This coating provides complete encapsulation, leaving no exposed lead. It also acts as a lubricant, replacing the wax that goes in the lube groove.
A bullet coated with Hitek can be safely shot up to a speed of 1800 fps, without any of the coating coming off.
However, there are a few things to keep in mind when loading coated bullets:
Firstly, ensure that the case is belled enough to accept the bullet during the seating process, so that the coating is not scraped off.
Secondly, make sure that your crimp is not cutting the coating because when the bullet is fired, the coating should not be scraped off as the bullet exits the case.