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Are Moly coated bullets really faster?

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This science fair project aims to find out how the velocity of the bullets is affected by coating them with dry lubricants. The tests will be carried out using a rifle and bullets coated with molybdenum sulfide (moly).

Hypothesis

Moly-coated bullets will travel faster than ordinary bullets?

Overview

Molybdenum Sulfide (Moly) coated bullets

Bullets have along been coated with dry lubricants in order to improve their velocity. In particular the availability of of such ready-coated bullets has increased their popularity. There are 3 types of coating typically used on bullets, namely Molybdenum disulfide (Moly), Hexagonal Boron Nitride and Tungsten disulfide. Moly is the most common type of bullet coating used in firearms However moly can cause erosion of the gun’s barrel because it reacts with moisture to produce harmful substances.

Scientific Terms

Lubricants, Molybdenum sulfide, Hexagonal Boron Nitride, Tungsten disulfide, friction, pressure, velocity

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Complexity level:

Project cost ($):

200

Time required:

1 hour for preparation, 1 day for observation

Material availability:

Procurement of licensed firearms from authorized sources required

Safety concerns:

1.    Unauthorized use of firearms is illegal. Some countries carry extremely heavy penalties for the illegal possession or use of firearms.
2.    Ensure that only a trained and authorized/licensed person is allowed to handle the firearm.
3.    The tests must be conducted in a safe environment - eg a proper shooting range.