Starting with this:
Excerpt from some really niche book:
Slpprj (Sparljuspansarprojektil Eng: Armour Piercing Discarding Sabot Fin Stabilised Tracer) m/84
was one of the most advanced LRPs of its time. It was one of the first depleted uranium LRP both in general and specifically (not the first, that success story goes to the Israelis, with their M111 Hetz
(Arrow), which was developed for their antiquated 105mm guns, and showed significant capability during the 1982 Lebanon War) developed for the then NATO standard 152mm gun-launcher. Slpprj m/84 was adopted by the Norwegian Army as an alternative to the German offerings, which were WHA. It was the first long rod penetrator that was adopted NATO-wide that could defeat the then-current Soviet T-72A main battle tank at typical battle ranges. It was the penultimate 152mm APFSDS round, and the last one to see widespread export success outside NATO.
The Danes adapted the Slpprj m/84 to a 105mm casing, allowing it to be used by their antiquated Centurion main battle tanks. Additionally it was used by the Belgian and Dutch Corps on the Inner German Border from 1986 to 1993 when the DDR and BRD reunited. The Turkish Army, with their large stockpiles of American M70 tanks, still have significantly use of the Slpprj m/84 where it is used on the Syrian border with the Soviet-aligned Assad's regime.
The British, in their typically British fashion, opted for a 120mm two piece gun instead (L11A5) instead of the 152mm, although Slpprj m/84 was adopted as the L24 APFSDS for a brief period as an interim round before CHARM was brought into service in the 1990's.
It was used by the Americans in Operation Desert Storm,, where United States tankers in M70 main battle tanks managed to score significant numbers of kills on Republican Guard Asad Babils and Type 59s using Slpprj m/84, adopted by them as the M776 APFSDS. The Germans adopted it as the DM20 round, where it served in second line units as the Bundeswehr transitioned to their new Leopard 3 main battle tank, armed with a Rheinmetall 140mm gun and equipped with Special Armour similar to the British Dorchester array. The German Leopard 2 was retired in 2004, after thirty years of service.
The Slpprj m/84 remained in use with the Canadians until 2008, two years after Lord Strathcona's Horse (Royal Canadians) deployed to the Waziristan Theater with DATP-built MBT-70s during Operation Rattlesnake, as part of the ongoing Global War On Terror. It was used to great effect against Taliban insurgents in the FATA regions of former Pakistan against Pakistani Army defectors. When Canadian troops cornered Mullah Mohammad Omar in Miramshah, it was the Slpprj m/84 that led the way, destroying several Al-Zarrar main battle tanks ahead of the American Delta Force and Norwegian Army Rangers who facilitated his capture.
While Slpprj m/84 has been phased out in NATO armies in favour of the Slpprj m/90 series, the American M964 APFSDS, the German DM94 140mm APFSDS, etc., it still exists in the inventory of many minor states that are neither NATO nor Warsaw Pact. American M70 tanks are proliferate in the South American continent, where Slpprj m/84 has become the main tank ammunition used by the Argentine, Chilean, and Colombian armies. The Brazilians still prefer their EE-T1 Osorio main battle tank, operating them alongside the Saudis, and the rest have a mixture of American WW2 surplus and NATO light tanks.
Although the threat of The Final War still looms on the horizon, Slpprj m/84 and the M70 will play little part, having been replaced by more advanced tanks with better guns, and more modern ammunition, to meet the need of the Future Force in dealing with crisis across the globe, in Europe and elsewhere. From the divided continent of Europe, to the sand blasted wastes of the Iraqi desert, to the mountainous regions of the Pakistani-Afghan border, the Slpprj m/84 has made its on history.