Well, unless I am seriously screwing up the math somewhere, the recipe *needs* to be 6 gallons to come in at 1.073 with 16.25 pounds of grain and a ~73% efficiency. But, I can't find any discussion anywhere online where someone notes that the recipe is calibrated to UK gallons, i.e., that it should be 6 US gallons, which seems odd (if I am correct) given how often it is brewed. I am perplexed. What volume do people here normally aim for?
The 1.073/73% I got straight from Denny here: http://www.tastybrew.com/forum/thread/76127
Batch Size (GAL): 5.00 Wort Size (GAL): 5.00
Total Grain (LBS): 16.25
Anticipated OG: 1.073 Plato: 17.8
Anticipated SRM: 12.2
Anticipated IBU: 75.1
Brewhouse Efficiency: 73 %
Wort Boil Time: 70 Minutes
67.7 11.00 lbs. Pale Malt(2-row) America 1.036 2
18.5 3.00 lbs. Rye Malt America 1.030 4
7.7 1.25 lbs. Crystal 60L America 1.034 60
3.1 0.50 lbs. Cara-Pils Dextrine Malt 1.033 2
3.1 0.50 lbs. Wheat Malt America 1.038 2
When I run those numbers it just doesn't work out.