...but of course, my favorite is a Garand for defeating light armor, vehicles and 1” plate steel ( they tend to take away any cover the bad guy may be behind, cars, trees, railroad ties, sandbags, brick walls, ballistic vests, etc..)...surplus .30 cal M2 AP, API, Incendiary is out there, pricey, but it can be found. GB has some occasionally, now running about $2 a round.
That API will go through a car body (esp. a modern one) and into the gas tank like crap through a goose...and the “I” will make for a nice display. Of course, on could just use regular ball ammo to cause several gas tanks to start leaking, and then use the API. Just saying.