Yes, I tend to agree, but not knowing what the bore looked like pre-sleeving, I will reserve judgement. In fact, I have a couple other rooks with sewer pipe bores which I can't get to shoot very well and I must admit, the Hornet is a tempting alternative.

I did a chamber cast and it is indeed a standard Hornet.
The stalking safety didn't work but when I removed the lock, it was simply a loose screw which holds the safety slide in place. All better now

Here are more pictures: