Jello Junkie

From GunCounter

Term used to refer to those that base their selection of handgun ammunition primarily based on the results of laboratory tests using ballistic gelatin to simulate the bullet's performance in a human body. As opposed to the "Morgue Monsters"" that prefer data gathered from actual field use.

Most associated with the work of Dr. Fackler Fackler, Col, USA MC Retired

Firearms Tactical Institute website contains several of his articles.