Which consequence arises from variations in gunpowder granulation when manufacturing early cannons?

💡 Explanation

Variable muzzle velocity occurs because inconsistent gunpowder granulation alters the surface area for combustion: coarser grains burn slower, finer, faster releasing energy unevenly; therefore cannonballs experience inconsistent accelerations, rather than consistent pressures eroding rifling.

• Which material outcome occurred when medieval castle stone experienced prolonged freeze-thaw cycles?
• Which increased risk occurred when Song Dynasty ironworkers cast early cannon barrels from a non-homogeneous mix?
• What mechanical failure most threatens Ziggurat stability during intense thermal expansion?
• Which risk increases when improperly seasoned timber is used to construct wooden hulls in historical ships?
• Which process most severely reduces Chinampa maize yields during prolonged pre-Hispanic Era droughts?
• Which characteristic diminished maize availability because terrace soil erodes?