Selecting the proper Tube combination

By attaching various Xtenders the Bullet Test Tube is expandable to suit most any cartridge / bullet combination you wish to test. To help you select the appropriate Xtender click
SELECTING XTENDERS.

Connecting the Test Tube
and Xtenders

Xtenders are attached to the Test Tube by simply sliding them onto the Test Tube. Remove the end caps from the Test Tube, remove the cap from the Xtender and slip them together.