diff --git a/Defs/Ammo/Shell/762x539mmR.xml b/Defs/Ammo/Shell/762x539mmR.xml
index 996c01f491..b8de2f1cb5 100644
--- a/Defs/Ammo/Shell/762x539mmR.xml
+++ b/Defs/Ammo/Shell/762x539mmR.xml
@@ -22,7 +22,7 @@
 	<!-- ==================== Ammo ========================== -->
 
 	<ThingDef Class="CombatExtended.AmmoDef" Name="762x539mmRBase" ParentName="AmmoBase" Abstract="True">
-		<description>Light cannon shell used in tank destroyer guns.</description>
+		<description>Medium-velocity cannon shell fired by tank destroyer guns.</description>
 		<thingCategories>
 			<li>Ammo762x539mmR</li>
 		</thingCategories>