[spoilers for Steelheart]
There's a scene where Megan kills Fortuity (Who essentially has incredibly good luck, similar to a Chromium compounder) because she "pins" him. She fires a gun on either side of him, while he's jumping, so he can't avoid both bullets, killing him. Whether a compounding Spinner's luck would work the same way or would be even more powerful (one of the guns jamming, the bullet dry firing, the bullets glancing off an accessory, etc.) I cannot say.