LET'S FAMILIARIZE WITH THE STOCKMAKING TERMS:
Butt: The portion of the stock behind the grip
Sole: The back of the butt – where the recoil pad or buttplate mount.
Comb: The top of the Butt
Heel: The end point of the comb, where the comb meets the sole, topmost point of the butt sole.
Nose of the Comb: The forward point of the comb.
Comb Line: Nose of the comb, Monte Carlo (if included), to Heel.
Toe: Bottommost point of the butt sole.
Grip/wrist: Distance from rearmost point of action to rearmost point of grip(cap).
LOP (Length Of Pull): Furthest point of the front plane of the trigger to the center of the butt sole.
Length of Grip: Furthest point of the front plane of the trigger to the forward most point of the grip(cap).
Pitch: Number of degrees is in towards or away from shooter’s chest. Helps in natural sight alignment & aids directing recoil. Helps compensate for chest size (Barrel-chested body type benefits from more pitch.)
Cast Off/On: Center line of butt sole in relation to centerline of action. Ex: ¼” Cast Off will move the vertical centerline of the butt sole ¼” to the shooter’s right of the centerline of action, to center butt sole better in shooter’s shoulder pocket. Cast On moves to the shooter’s left. Broader shouldered or large chested body types benefit from more cast off; helps in natural sight alignment & recoil control.
Drop: Distance from datum line (Center of Bore, top line of sight rib, top line of stock (assumes barrel is inletted to half-depth making top line of stock parallel to center of bore)) to heel (Also called Drop at Heel).
Drop at Nose: Distance from datum line to nose of the comb.
Drop at Cheek/Drop at Monte Carlo: Distance from datum line to top of Monte Carlo or where cheek is placed if no Monte Carlo.