Which type of projectile is described as a modern style of lead projectile?

The answer reflects the understanding that a cast lead bullet is the modern style of lead projectile typically used in muzzleloading and other firearm applications. Cast lead bullets are manufactured using a process that allows for greater precision and consistency than traditional round lead balls. They are often designed with specific shapes and weights that enhance their aerodynamic properties and terminal ballistics, making them ideal for various shooting contexts, including hunting and target shooting.

Round lead balls, while still used in certain muzzleloading scenarios, represent older technology primarily designed for smoothbore firearms. Hollow point projectiles are a type of expanding bullet that is more commonly found in modern centerfire ammunition, specifically designed to expand upon impact for increased stopping power, which makes them less applicable to the definition of a "modern style of lead projectile" in the context of muzzleloaders. Governor shot could refer to a type of ammunition used in specific applications, but it does not align with the concept of a modern lead projectile in the same way that cast lead bullets do.