The Second Amendment assures Americans the right to bear arms. But in light of the latest shooting tragedy at a Christian college in Oakland, voices are being raised about ways to limit gun violence. One idea might be ammo control, which could blunt the ability of killers to reload—as James Huberty did July 18, 1984, when he fatally shot 21 people at a San Ysidro McDonald’s before being felled by a SWAT sniper. Huberty reportedly used 257 rounds of ammunition. Should ammo be limited?