WHAT'S THE DIFFERENCE???
The E-Max has a .015 jacket thickness and the Match/Hunter is .028.
The E-Max ( maximum expansion projectile) is just that , it is designed to give DRAMATIC expansion from your bullet to bore .45 Cal. rifles. The 275 gr Match/Hunter on the other hand is tougher and will not give the same QUICK expansion found in the E-Max---otherwise the two projectiles are almost the same.
One other characteristic of the E-Max--it is easy to obturate which makes it a very accurate bullet and it seems to shoot well in most custom barrels. As a rule the E-Max IS NOT A SABOT BULLET--it really shines in the .45 Cal bullet to bore custom weapons.