03-28-2011, 03:05 PM
bwaites Wrote:Hmmmm? I'm confused!
Basically my assumption that the TTSX needed to be seated deep was unsubstantiated. I cannot confirm. I tried using my OAL tool, but the 120 gr TTSX was too long for the tool.
The tool is fitted with a dummy Grendel case on the end of which a bullet sides effortlessly into the case mouth.
The standard practice is to screw the dummy case in, then stick a bullet in the case mouth. The bullet drops down near the bottom of the case. You then insert the tool into the rifle's chamber, and push the wire attachment (which in turn pushes the bullet outwards) until it touches the lands. Set the setscrew for the wire and pull the tool out.
You can then measure the OAL of the catridge.
The problem I have is the bullet is too long for the gauge. It won't seat deep enough to take a measurement, so I tired to use tape and rig it so the dummy case sits further out.