Thank you lemoyne; I'm not referencing maxi-balls/hunters though.
For clarification:
RT0114 Thompson Center Maxi-Shok Bullet Performance Tools
Seat your bullet or round ball with one of the four tips on the end of your ramrod and you will be amazed at the difference in the terminal ballistics of the projectile. By changing the front of the soft lead bullet you can achieve maximum energy transfer by increasing the projectiles expansion. 3 guides - .45, .50, and .54 caliber and a 5/16 adapter.
Source:
http://www.dixiegunworks.com/product...qrikrcnh5sc2g6