I have not yet tried it myself but have read some good reviews from a lot of guys, at least on the plinking handgun stuff. I will be trying some soon as they have some of the best prices out there on 10mm and .41 magnum ammo.
I pretty much only use premium ammo for hunting and plan to stick with the results I already know there.
Let me start off by saying I am not a farmer.
I am a deer hunter and I do own a tractor and have all of the equipment - but that does not make you a farmer any more than standing in the garage makes you a car - well, you get the picture!
Having said that - and with most of my ineptitude fairly well hidden - I do think that buckwheat is one of the most under rated cover crops out there.
I say cover crop because I see mixed results as it relates to the deer eating the plants.