The actions of a Canadian company are difficult to understand. IVI started producing the Imperial line in 1977 and IVI was purchased by SNC in 1980. Production of ammunition for the military was always a larger part of IVI's business because it tended to be consistent. In 1983 and 1984, production at IVI was cut back as they retooled to produce 5.56 mm. Through the later 80's, military production increased and it may be that civilian ammunition production decreased at that time to concentrate on the more lucrative military contracts.
The correct answer to "why" is no doubt buried in IVI somewhere but it may be along the lines that they were more interested in making money with better contracts than they were with making sporting ammunition.
A Rand Corp report is available on the net by searching IVI ammunition.
I believe IVI took over the CIL ammunition business in the very early 1970s. By 1973 almost all of the ammunition produced by CIL had been changed to IVI. As I recall there were only a few ammunition lines kept these being 22LR, 12 Ga and 20 ga shotshells and a few rifle calibers (30-06, 303, 308..?) In the military line, they took over the Government's Dominion Arsenal which made mostly 7.62 NATO ammunition, 9mm Parabellum and some larger stuff like 50BMG occasionally. The takeover of the DA was first then they took over CIL.
IVI Publishing was created in 1979.
Ivi Adamou is 175 cm.
Ivi Eenmaa was born in 1943.
IVI Publishing ended in 2001.
Ivi Adamou was born on 1993-11-24.
Christmas with Ivi Adamou was created on 2010-12-22.
intra venous injection
IVI has no meaning in Roman Numerals. IV is 4 V is 5 VI is 6 IVI does not follow the rules of how Roman Numerals work.
The cast of Ivi - 2003 includes: Noelia Urdangaray as Redhead girl in party
paralimni, cyprus
The acronym IVI has various meanings depending on the context in which it is used. Examples are In-Vehicle, Infotainment, International Vaccine Institute, and Intravenous Infusion.