Figure line Barrett Scale
Brigade Games 27.5M-
Copplestone
-Infantry 28.5M+
-Horse 36M+
Eureka
-Infantry L*
-Horse 34L
Old Glory
-Infantry 25M
-Horse 35M
Redoubt 25M
*Eureka infantry are seated and thus cannot offer an accurate height comparison.
It might not be recommended to mix figures from different companies in the same unit. Despite any differences in height all of these figures work well together on the gaming table.
The Barrett Scale measures figures from the base to their eyes. Girth/heft of the figure is listed as L = light, M = medium, H = Heavy.
I hope this helps!