I found that straight linotype would splatter on a metal target using my rcbs kieth 250gr GC. Straight WW seemed to lead a bit. I found that if I use 4 parts WW to 1 part linotype, the leading is down to a minimum, they drive a bit deeper into the target, and they dont splatter. They also form sharper edges from the mold.
No such thing as a stupid question. What is stupid is not asking it.