I took some out of town folks shooting yesterday evening. We shot until close to dark. The last rifle we shot was a 458 SOCOM. I noticed a small spark when the bullets made impact with the AR500 steel?!?
Bullet alloy was roughly 94-3-3.
Powder coated
300 grain round nose with a big meplat.
I have not chronographed this load, but I think it’s in the 1,600FPS range.
My question is what technically is causing the spark?
BNE