A detonating lock that will bear this trial, and will invariably fire the cap, may be pronounced quite good enough for any sporting purpose. The triggers should be what are technically termed _box-triggers_, and should be taken from the stock and cleaned at least once during the season, and oftener if very much exposed to dust, rain, or a damp atmosphere. They should be adjusted with scrupulous nicety, so as to require only a slight touch to draw them: they should not, indeed, fire as easily as the hair-triggers of duelling pistols, but should be fixed so firmly as that the sportsman should not be liable to discharge his piece, while bringing it up to his shoulder cocked, with his finger upon one of the triggers. The triggers may sometimes be regulated by filing, hardening, or softening the scear spring, or filing the wedge-like part of the scear which falls into the notches of the tumbler: and sometimes it is necessary to file that part of the trigger which comes in contact with the scear, but this operation requires to be carefully performed. A valuable lock should not be placed in the hands of an unskilful workman for the apparently trifling purpose of regulating the triggers, nor yet for any other purpose. The wadding we should recommend is that made of felt, and anointed with some chemical preparation. We are not sure that this is the very best description of wadding, but we know of none better. New waddings are constantly invented. The metallic wadding, concave wadding, punched cards, or punched hat wadding, are any of them good, as regards shooting. The chief reason why we bestow a preference on the anointed wadding is, because the barrel is kept less foul, and may be fired so many times oftener without requiring cleaning, than when any other description of wadding with which we are acquainted is used. We are not partial to a tight wadding, but it should fit so that when the barrel is clean and smooth within, the charge will not stir. There is little fear of the charge stirring after a barrel has been fired a few times, as the place where the leading or foulness accumulates in greatest quantity is just above where the charge of shot lies.