I did not go and measure them from your measurements. This was a couple of years ago when I ordered a replacement butt plate from T/C for one of my Renegades that had recoil pad attached when I got it.
The stock butt plate that I received as I remember was a little larger and I had to take off a little metal. I compared that one to the stock on my other ones and it was pretty much the same, but they all seemed very slightly a little bit different in size. I don't remember exactly, but I think I switched them around and fitted the new one to one of the others and took the one from that stock and fitted it to the one that had the recoil pad.
What I suspect is that they are fitted to the wood during manufacture, however year of manufacture and differences in production runs could explain the difference.
