There are several variables as far as how long will 50 lbs. last mainly how long you spin it how far the spinner is from the funnel, the type of spinner you have. For the “average” if you have about ½” space from the spinner to the funnel and spin it for 4-5 seconds you will spin out almost 2 lbs. of corn each time. You can do the math once a day 25 days twice a day about 2 weeks.
:saluting
I'm thinking about getting a directional one to use in some pine rows.
Whatever you do don't use a plastic barrel the dam rodents with chew right through it.
FYI Don't do it! the directional feeders are made of plastic as well and they'll eat it to. Seen it happen!
:saluting
There was one made by Kenco called the straight shooter. The squirrels would eat the paddle out of it
