22 Caliber Dueling Tree Target The six targets are mounted to a common post which fits into a socket in the base.The base uses our standard 17" legs that can be adjusted for uneven surfaces. The post and legs are removable from the base without tools for ease of setup and transport The target is made from 1/4" thick AR500 steel for use with 22 rimfire ammunition only. 15 yards minimum for 22 rimfire ammunition