ryat, 2 MILLIGRAMS is 2 1/1,000 of a gram which is 1/1,000 of a kilogram, and there is 2.2 pounds per kilogram so I am using 4/1,000,000 of a pound of explosive. even nuclear explosions only give gram mass to 10 kilogram equivelence efficiency, and I am getting milligram to 10 kilogram equivelence, and if you care to look back about a month or two I showed a picture of a 5 kilogram explosion on a moon(looked to be similar to a LARGE(gigaton mass size) high velocity (500+miles per second) impact.
HarPO