Chefneil wrote:...I used 5 bottles of wine (750 ml bottles, I assume) first run - Got about 750 ml. Out...After tossing the foreshot - started about 130 proof collected heads- hearts and beginnings tails until i got a batch of 100 proof...
5 x 750 ml = 3.75 liters....how did you "shoehorn" that into your 3 liter alembic?
But looking at the numbers...5 x 750 ml x 12%ABV (assumed) / 50%ABV (final average product strength, ie-100 proof), you would expect a maximum of 900 ml total alcohol, of which you collected 750 ml after foreshots and some heads and tails cuts.
It seems reasonable for 5 bottles of wine, but how did you get all of that wine into the still? Did you do 2 runs?
Also, when fermenting your own wash, trying to get to 12%ABV in the fermenter will produce some off flavors which might be detrimental to the flavor of the finished spirit. We typically hold 10%ABV potential as an upper limit for good flavors, so you don't stress the yeast. For grain mashes, the target is usually a little lower as well, like 8%ABV.
You can brew however you like, but be forewarned that high alcohol ferments do not produce the best tasting spirits.