(b) Any pistol. A pistol of any caliber. Maximum length of barrel, 10 inches. Minimum trigger pull, 2 pounds. Sights may be adjustable but they must be strictly open, in front of the hammer and not over 10 inches apart.
(c) Military revolver or pistol. A revolver, or a magazine pistol, that has been adopted by any civilized government for the armament of its army or navy. Maximum weight, 2¾ pounds. Maximum length of barrel, 7½ inches. Minimum trigger pull, 4 pounds. Fixed open sights. Rear sights of magazine pistols may be adjustable for elevation only.
(d) Pocket revolver. A revolver having a maximum weight of 2 pounds. Maximum length of barrel, 4 inches; Minimum trigger pull, 4 pounds. Sights and model must be such as not to hinder quick drawing of the weapon from the pocket or holster.
3. _Loading, Firing, Timing, and Cleaning._--In all revolver and pistol matches the weapon must not be loaded until the competitor has taken his position at the firing point. The barrel must always be kept vertical or pointed towards the target. After the target is in position and a match or record score has been begun, in case of an accidental discharge or of defective ammunition, if the bullet comes out of the barrel it will be scored a shot. The timing in matches C, D, E, and F will be as follows: The competitor standing at the firing point with the arm loaded, not cocked, and the barrel pointing in a direction not less than 45 degrees from the target, will signify to the scorer when he is ready to begin each string. The scorer, stop watch in hand, will then give the command, "Fire," _after which_ the competitor may cock and aim his weapon and shoot his string. At the expiration of the time limit the scorer will announce "Time." Misfires will be scored zero, only in Matches C, D, E, and F. Competitors may clean weapons in Matches A and B, and in the corresponding Indoor Championships, but no time allowance will be given for time spent in this way. All competitors will be required to finish their scores within the time limits specified, except in cases of accident, when the time may be extended at the discretion of the executive committee. Blowing through the barrel, to moisten it, will be considered cleaning.