This query refers to the bore dimension of a firearm, specifically one intended for hunting small to medium-sized animals considered pests. The “26l muzzle” likely alludes to a barrel length of 26 inches. Determining the exact bore size requires understanding the cartridge for which the firearm is chambered. Different cartridges designed for varmint hunting utilize varying bullet diameters to achieve optimal accuracy and terminal ballistics at different ranges. An example would be measuring the internal diameter of a barrel designed to fire a .223 Remington cartridge, a popular choice for this type of hunting.
The diameter of the bore is a critical factor in determining the firearm’s accuracy, recoil, and effective range. Smaller diameters generally result in less recoil, while larger calibers can deliver more energy to the target. Historically, hunters have sought specific bore sizes to balance these factors, achieving both precision and sufficient stopping power for their intended quarry. The selection of a particular bore diameter depends on factors like the typical distance of the shot, the size of the varmint being targeted, and the shooter’s preference for recoil and ballistic performance.