smooth bore

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smooth bore

[′smüth′bȯr]
(ordnance)
A bore that is smooth and without rifling, for example, in shotguns and mortars.
References in periodicals archive ?
In the 1840s, a French officer named Minie discovered if the musket's barrel was rifled and its projectile was conical with a hollowbase, it could be loaded like a smoothbore musket but give precise bullet placement like a rifle.
When fired from a rifled barrel, the three buckshot pellets spread very quickly at close range, while the soft lead slug is engaged by the rifling and flies much more accurately at longer distance than from a smoothbore barrel.
57-caliber Model 51 smoothbore loaded in exactly the same manner as the ,69-caliber Model 1842 using a paper cartridge.
Known as the Oplot-BM, this MBT is equipped with a KBA-3 120mm smoothbore gun which can launch the Tula Machinery Design Bureau 9K119M Reflex laser-guided surface-to-surface missile as well as conventional rounds.
For instance, in 1971, Chester Veach made an 83-yard shot with his 20-gauge smoothbore to fell a huge non-typical in Ohio's Pike County.
It has advanced fire control system, with 120mm smoothbore gun, a 12.
All guns at that time were smoothbores, so not a lot of thought was paid to whether they shot a single projectile or many projectiles.
The "12-bore smoothbore slam firearm", consisting of two metal tubes and a makeshift handle, could be loaded with one cartridge.
For a smoothbore BB pistol, this is pretty good performance.
Just like their smaller siblings, the 3-inch shotshells offer some of the best accuracy available out of smoothbore shotguns, flirting with, but not breaking, the 2-inch mark at 50 yards.
When asked about use of firearms, the Minister said a Kyrgyz citizen brought a smoothbore gun, but shot himself in his leg as he did not know well how to use the gun.