I think that the existing bronze population is diminishing daily. Going to melt.
I've read a post from Rob, that he picks out the obvious ones, open 3's, 169's, etc. The rest are melted.
Paddy advertised back in November, 43kg combined bronze, that , in the end went for melt. All the good stuff being put aside.
As you know, I'll buy bulk via eBay, at slightly above melt price, hoping for something tasty. Generally to no avail. The rest go to melt. I'll not eBay them because I'll end up buying them back at some point, from an ebayer who's doing the same thing.
However, on a positive note, all of the coins that I scrap are washers. Last year, a 275kg lot yielded a Gouby X. Recent lots, a Gouby X and a 164a. That's all. Even these were lower grade coins. Take the F98 I have listed at mo. Best I've found, but is it really of any interest. I doubt it. All the cream has been removed and is in the safe hands of collectors such as yourselves.
I think that the available penny supply is reducing rapidly. 50 years of people sifting through coins and melting their rejects, to recoup their outlay, must have taken a huge toll on the remainder that the RM didn't recycle.