The jacketed or gas checked bullets eliminate the need for wads with black powder. If, however, you're going to shoot silhouette matches, be prepared to load cast bullets, only, and straight black powder. Many shooters cast their own bullets with moulds available from a variety of sources. There are several bullet companies who cast match grade bullets at reasonable prices. When you choose a bullet, as when you choose powder, consider the distance and the target at which you're shooting.
Heavier bullets shoot farther more accurately than light bullets within the same caliber.
Heavier bullets, like faster velocity powder, cause greater recoil. They also knock down targets better. Primers have their own characteristics from brand to brand. CCI's are harder to ignite, and though of excellent quality, may cause problems in rifles with light hammer springs or shortened hammer falls. Try different primers, during your load development.