Wikidata:Property proposal/Caliber

caliber edit

Originally proposed at Wikidata:Property proposal/Term

Done: caliber (P4403) (Talk and documentation)

Description	inner diameter of the gun barrel for a weapon
Represents	caliber (Q170417)
Data type	Quantity
Template parameter	Caliber
Domain	Bevæpning,
Allowed units	millimetre, centimetre, inches
Example	75 mm Cannon Model 1897 (Q958738) 75 mm
Format and edit filter validation	155 mm, 15,5 cm, .451 inch
Source	List of artillery
Planned use	for infoboxes and documentation of the specifications of a gun
Robot and gadget jobs	Collect data from infoboxes
See also	dimension, diameteter

Motivation Give the caliber of a gun into the infoboxes for artillery, rifles, pistols and revolvers

(Legg inn årsaken til forslaget for denne egenskapen her.) This is missing as an element in Wikidata Pmt (talk) 12:19, 1 July 2017 (UTC)[reply]

Discussion

@Pmt: Welcome at the property proposal discussions. Are there other databases that list this information? If so, how do they call the property? ChristianKl (talk) 16:37, 1 July 2017 (UTC)[reply]

@ChristianKl: Thanks. Do you mean databases outside Wikipedia? --Pmt (talk) 16:47, 1 July 2017 (UTC)[reply]

Yes. Many times people outside of Wikipedia have invested time in thinking about how to name a particular property. It's also useful to avoid proliferation of different standards. ChristianKl (talk) 16:51, 1 July 2017 (UTC)[reply]

I can find [1] and [2] using caliber to describe a certain cannon. Also makers of cannons uses caliber in specification for a specific gun or revolver, like Rheinmetall.--Pmt (talk) 17:30, 1 July 2017 (UTC)[reply]

@ChristianKl, Pmt: - Comment - I'm leaning towards support, as this is a useful and common figure for databases for arms and armament. Right now, the ammunition (P739) property is widely used for small arms to provide the measure of caliber and load. (eg. Colt M1911 (Q201419) uses .45 ACP ammunition). However, we have somewhat of a problem that at least for small arms, they don't usually just say .30 caliber as a free-form measure and leave it at that. They usually are specific to the cartridge, such as 7.62x63mm, 7.62x54mmR, or 7.62x51mm, or 7.62x39mm. (See IMFDB [3] or Gunbroker [4]) These are all very different cartridges, and not even the same exact size when it comes to the internal diameter of the barrel. So at least for these small arms rounds, "caliber" in a database would include the full cartridge specification, meaning that field should be an actual item. I don't know the norms for artillery or larger guns, so I'm willing to hear what others have to say. -- Fuzheado (talk) 14:11, 3 July 2017 (UTC)[reply]
@Fuzheado: Bigger Cannon often used/uses separate granate and powderbags for for booster charge. Litteratur seldom mention cartriges as dimension for bigger cannons. Except maybe for smaller automat cannons --Pmt (talk) 16:08, 3 July 2017 (UTC)[reply]

As property proposal effective firing range now is ready for use I do ask that the Property proposal/Caliber shoul be consider as a sister value for effective firing range as this values together is part of the structured data descriptin for a gun or a cannon. Pmt (talk) 08:12, 19 August 2017 (UTC)[reply]

It seems like a good idea to have this as a separate property as it's a commonly used value for cannons and guns. The list of allowed units should probably also include pounds as for older artillery cannons, the caliber was commonly given as the weight of the cannon ball which fit in it. TommyG (talk) 10:04, 19 August 2017 (UTC)[reply]

Support David (talk) 20:35, 14 October 2017 (UTC)[reply]
@ديفيد عادل وهبة خليل 2, Pmt, TommyG, Fuzheado: Done Created as caliber (P4403). ChristianKl (talk) 08:01, 20 October 2017 (UTC)[reply]