Marketing to a desiring community is a powerful tool. I'll stick with the traditional cup and core bullets that have served me so well for decades thank-you.
Not very new concept of shape for devastating monolithic bullet.
GS Custom from South Africa developed FN Flat Nose monolithic bullet at least 20 years ago.
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From Wikipedia
"No safe threshold for lead exposure has been discovered—that is, there is no known amount of lead that is too small to cause the body harm."