This comes down to if adamantium can pierce vibranium, just like in the Wolverine vs Killmonger thread. No on-screen evidence shows this yet, so at the moment X-24's raw power, brawling berserker build is ill-suited against Killmonger's agility and kinetic energy absorbing and redirecting suit. I'll give X-24 the strength advantage due to the truck press, but Erik wouldn't be far behind due to heart-shaped herb.
EDIT: King beat me to the punch on the kinetic absorption and redirection suit properties. Also, X-24 can still have joints dislocated, adamantium or not. Erik's suit, skill, agility, and strength are all enough for him to get to some vitals at the very least for an incap victory against X-24.
Killmonger lives up to his moniker here.