As I understand it,

by RidinLou, Middle TN, Sunday, June 09, 2013, 08:47 (4189 days ago) @ Charles

First of all, Congratulations on the win.
Momentum and meplat face prove their worth once again

Watch out for the 38 SPL shooters, weak enough load and one may get an inelastic collision with the pin and the bullet comes back from whence it was launched.

This is from reading (not personal experience) back when the bowling pin game first started and folks figured an accurate flat face of a WC load would be the key to winning matches.

Having caught one in the chest and one in the face I can assure you inelastic collisions are not one of those pure theory things. This is especially clear to me because I found both bullets this spring and interestingly enough, both are almost perfectly rounded in the front.

One cast, one jacketed, both 38 SPL mild load two different impact surfaces and separated by 10-15 years in time. One bullet is in the console of my truck as I type and one is currently misplaced