[HoE] re:blowthrough

The Wasted West has rules on blowthrough on targets in thr description of the rail gun. For the Rail gun, if none of the damage dice come up Aces (doing more damage), the shot proceeds to hit a target behind the original target. This phenomenon also occurs with the .50 Barrett Sniper rifle, which is why the police don't use the rifle in hostage situations (if at all). Bullets with more damage potential, such as hollowpoint, Black Talon (Frangible), and Glaser Safety Slugs (a bad description or twistedly funny, depending how ou look at it) would not blow through but armor piercing bullets would.

Quick question: Does anyone have stats on what the damage of a 10-ga. slug/shell would be? It's the kind of shotgun Arnold uses in T2 (the Lever Action).