If you mean shots were fired at the bathtub, yes, and the windscreen, yes. But these pieces were not on an assembled jet.
Oh, dang all this time I thought they fired live rounds at it while a live test pilot flew the plane. Apparently we didn’t need to do that ourselves since our enemies (foolish enough as it may seem) are lining up to do it themselves. The A-10 has never the less proven itself dauntless in battle