This was a looser vs. the APILAS for the French Army, the latter being 112mm caliber. RPG-29 and the AT-12T would be other examples of high caliber shoulder fired rocket launchers appearing about a decade later.
Most nations held off on adapting higher caliber weapons like this because firing rocket launchers at tanks frontal armor at medium range was fairly suicidal anyway, and smaller caliber weapons you could carry in greater numbers remained credible against flank armor. Better the logic was, to keep your head down and wait for the tanks to be on top of you.