[hnaccy]

The claimed kill rate for Javalin in practice is over 90%.

NLAWs are even cheaper and easier to use but don't know their estimated kill rate.

[yyyk]

Against badly run T-72 tank divisions maybe. Against a modern tank with an active defence system and infantry cover? I strongly doubt it. There are more than a few known cases of tanks getting hit by Kornets and surviving and Javalin is contemporary.