Dry Stout Recipe

[derekp83]

Came up with a dry stout recipe and would like some feedback on the grain bill and IBUs.

Dry Stout - Basic with Wheat - Dry Stout (13A)
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Batch Size 2.906 gal
Boil Size 2.500 gal
Boil Time 45.000 min
Efficiency 75%
OG 1.045 sg
FG 1.011 sg
ABV 4.5%
Bitterness 36.1 IBU (Tinseth)
Color 28.0 srm (Morey)

Fermentables
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Name Type Amount Mashed Late Yield Color
Briess - 2 Row Brewers Malt Grain 2.000 lb Yes No 80% 1.8 srm
Briess DME - Golden Light Dry Extract 1.000 lb No No 95% 4.0 srm
Briess DME - Bavarian Wheat Dry Extract 10.000 oz No No 95% 3.0 srm
Briess - Caramel Malt 60L Grain 5.000 oz No No 76% 60.0 srm
Briess - Roasted Barley Grain 5.000 oz No No 55% 300.0 srm
Black (Patent) Malt Grain 3.000 oz No No 55% 500.0 srm
Total grain: 4.437 lb

Hops
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Name Alpha Amount Use Time Form IBU
Challenger 7.0% 0.847 oz Boil 45.000 min Pellet 36.1

Yeasts
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Name Type Form Amount Stage
Muntons Ale Dry 6 grams Primary