- 01: Introduction
- 02: History
- 03: Propellants, Firearms, and Ammunition Development
- 04: Modern Firearms Manufacture
- 05: Small Arms Ammunition
- 06: Evidence Handling Procedures
- 07: Equipment and Instrumentation
- 08: Examination of Firearms
- 09: Cartridge and Shotshell Examination
- 10: Characterization and Evaluation of Fired Projectiles
- 11: Bullet Comparison and Identification
- 12: Gunshot Residue and Distance Determination
- 13: Toolmark Identification
- 14: Communicating Results
- Resources
Stereomicroscope
Home > Characterization and Evaluation of Fired Projectiles > General Riflling Characteristics > Equipment > Stereomicroscope
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Stereomicroscope
Click for larger imageUsing a stereomicroscope land and groove impressions can me measured as follows,
- Place a fired evidence bullet and the micrometer under the microscope.
- Open the jaws of the micrometer to match the reference points on the fired bullet.
- Record the reading to the nearest thousandth of an inch.
- Rotate the bullet to the next land or groove impression.
- Repeat steps 2 - 4 until all land and groove impressions are measured.
