Parker Bros. Try-Gun Tools Reproduced

[Pa SxS]

Anyone care to tell us novices how these tools are used

[Autumn Daze]

Chuck, The main beam mounts to the top rib and are used to measure the length of pull, drop at comb, drop at heel and pitch. The stock on try guns are fully adjustable by the use of thumb screws on the comb and length. The t-wrench is used to lock the adjusting screws once everything has been set.

[Pa SxS]

Dave, I can understand the T wrenches being needed as a special tool to lock the adjustments in place but they could have just used a yard stick and ruler to get the drops and a protractor for the pitch. I have the R. Louis Co. Shotgun Combo Gauge which does the same thing as your main beam does but is held in place by magnets.