"Hey, you can't prove anything!"
Noxx,
I have the video............
Seriously, the amount you take in, and what you get for it, depends on the individual recycler, aka: junkmen. To say they are a little bit "different" is an understatement. Some are honest and some aren't, and I'll just leave it at that. If you think used car salesmen, that will put you on the right page.
I put all my spent rifle and pistol primers in a coffee can and take them in separately, even though they will pour them into the brass when they weigh it. That way, they know I'm not trying to pull anything over on them by mixing in ferrous metals with the yellow brass. Some recyclers won't take expended primers, but the one's I've dealt with will.
Some will offer less per pound for smaller amounts, and some just offer whatever the market is on that day. They check the metals market prices daily, so it changes from one visit to the next. It's really a "supply and demand" driven market. If you find a good recycler in your area, try to build some kind of relationship with him, as sometimes they will let you know if they get something in that you might be interested in buying, like a large amount of once fired brass from a range.........
Tricky, I've taken in as little as 30 pounds, and as much as 400 pounds. The closest recycler to me is about 65 miles away, and not the most honest. I now save up my metals and try to combine a trip to the honest one, another 65 miles up Interstate 5, that pays about ten cents a pound more, with a trip for something else. That way, I'm not making the trip just for the recycling, but would have gone there anyway for something else. I just plan on an extra half hour to swing by the recycling yard. I've always saved primers and have found that they're worth quite a bit. A coffee can full will surprise you at how much it will bring. I keep a cup on my bench to put the spent primers in and when it gets full, I just empty it into the coffee can.
Hope this helps.
Fred