Just throwing out a data point. A friend of mine is a farmer in eastern Montana. Years ago I took some of his white winter wheat, milled it into flour in a Vitamix blender, and used it in a 65% pilsner/35% unmalted wheat pilsner. The beer turned out brilliantly clear.
I recall that he said that this white winter wheat was pretty cheap on the open market because of the low protein content. The red Durham wheat grown over in North Dakota had a higher protein content and fetched a higher price on the market because of that among other reasons, as it is prized for making pasta.