Plastic Horses

[Major Weenie]

So,

1.) I hope this is the right place, and
2.) I hope that I haven't missed this very same discussion, held previously, thus making me look foolish.

That being said...

What's with these Perry Plastic Horses?  I mean, they're very nice sculpts, but they seem pretty darned big to me.  I've compared Perry plastic humans to their current metals ones, and they're the same size.  But when I compare horses, the plastic ones seem much larger, and with larger (as in rounder) chests.  They are not only taller than the metal Perry horses, I compared them to Egyptian Cuirassier mounts, but... Well the Egyptian horses have sort of narrow & tall chests by comparison.

Just wondering.  Were the metal horses smaller, because of the expense of the material?  The expense of postage/shipping.  Do the plastic chests need to be bigger because they're hollow?

Just wondering,
MW

PS - Many years ago when GW came out with plastic horses these too seemed bigger than their metal ones.