To improve its coastal artillery hitting firepower, the FInnish Army drew up plans to convert fifteen of its 122 K60 122mm towed field gun stock to a newer, more powerful 130mm towed-artillery package. This begat the 130 K90-60 series of guns for the service which appeared during the 1980s. The series utilized some of the original components of the earlier 122 K60 guns (namely the split-trail carriage assembly) with the barrel being the change of note - the 130mm caliber falling more in line with Soviet offerings of the period.
The K90-60 held an operational weight near 10,150 kilograms and required a collection of crewmen for optimal efficiency. The firing system utilized a horizontal, semi-automatic action which allowed a fairly well-trained crew to fire off approximately 8 rounds-per-minute. A split-trail, four-wheeled carried made up a large part of the mounting hardware which allowed for limited traverse and a useful elevation span of the main gun tube when engaging far-off targets. This same carriage was used in a subsequent 155mm towed gun design for the Finnish Army as well as in the Soltam M-68 field gun of the Israeli Army (detailed elsewhere on this site).
Today the 130mm caliber for field artillery is no longer in widespread use by national military powers, the preferred calibers becoming 105mm and 155mm.
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