I daresay any bullet, be it lead or jacketed, starting at -1000fps is going to ricochet unless firmly/softly backstopped. Unless, of course, it is a bullet specifically designed to shatter. I doubt a Linotype alloy will provide that as it also needs speed to generate the energy required for shattering, and even then a lino bullet will shatter its nose off and the back half will keep on traveling. This is something I have observed over decades of cast bullet experimenting, a lot of it with lino alloys (until I discovered the joys of soft alloys).
