_Letting in the Trigger._—The trigger should be so disposed in the plate that a distance of an inch and about three-eighths exist between the right trigger and the front of the trigger guard, and an inch and three-sixteenths or more between the two triggers, and a sufficient space between the rear of the left trigger and the guard behind it to admit of free movement of the trigger. Observe if the triggers do not come too close to each other; if they do they may so rub upon each other that the action of one will compel the other to follow its motion, and the result will be a descent of both hammers at the same time. Observe if the curves of the two triggers are at sufficient distance from each other so that the left barrel can be fired without the projecting and inner edge of the right or first trigger hurting the finger that pulls the trigger. _Secure Fastenings._—For a secure fastening of the break-off, and, at the same time, to bind the stock together and prevent splitting through where the locks are let in, insert a screw through the tang of the strap and have it received in the front end of the trigger-plate. Have a good thread where the screw goes into the trigger-plate, and have the plate firmly drawn to its bed in the wood. Fit the guard, observing the measurements for space in front and rear of the triggers. _Fitting Bolt-Loops._—To ascertain the position of the loop where the bolt or wire goes through to hold the barrel in place, insert a fine steel needle through the wood until it strikes the hole, and then enlarge around it to accommodate the hole and the loop. If for a bolt, a slender tool made like a saw will enlarge the hole in the wood, letting the tool follow in the loop and act as a guide to shape the hole. The finishing of the hole in the wood may be done with a bolt float, shown in Fig. 24. [Illustration: FIGURE 24.] _Hints for Finishing._—In finishing up the stock have the part where the cheek rests in firing made pretty full. Make it rather long than short, and have it more straight than curved. The length of a stock, be it double or single gun, from butt to front end of stock, may be from about two feet to two feet two inches; from the centre of the hammer-screw to front end of the stock, from ten to eleven inches. _Fitting the Break-off._—On good fitting of the break-off depends, in a great measure, the lasting quality of the gun. If this be not properly fitted to the hooks of the breech, to the breech itself, and into the stock, the gun is soon “kicked” to pieces by its own recoil. The extension of the break-off that is let into the stock toward the breech is called tang, strap or tail, and these are of two lengths, called the long and the short. These lengths usually correspond with the lengths of breech pins. The smallest diameter of break-off is one inch, and increases by eighths of an inch up to two inches.