Bunny has to be the first person I've ever met who likes the open sighted No1 Mk III's over the wonderful peep-sighted No.4 Mk. I's.
I had a No 1 Mk III, and while it had a decent bore and could always hit a 6" plate at 100m, it was damnably hard to get a good enough sight picture to do any better with it. Our No 4, however, was one that you would use to repeatedly knock over beer cans at the same range.
The triggers were about the same, as was the condition of them, but the No. 1 had that intermediate-mounted rear open sight that considerably shortened the sight radius and made the focus a bit more dificult.
BTW, We found some Winchester-loaded plain-white boxed 180g ammo that is AWESOME. It was loaded during the '70's or '80s (don't recall this minute). It's boxer primed, gives about 2500 fps, and gave us 1.5" groups. I wish to heck I'd bought more of that than the 80 rounds I did.
------------------
If you're *not* a member of the NRA, what *are* you doing to protect your rights to enjoy yourself on this Bulletin Board?
Do SOMETHING!