Partial Mash Sierra Nevada Porter Clone

Does anyone have any recipes or suggestions for the Sierra Nevada Porter? I'm open to extract recipes too because I'm still relatively new to brewing but I would prefer partial mash.

Thanks!

Here's my attempt at hitting the numbers and using the ingredients given by Sierra Nevada. Honestly, I don't see the point of partial mash. If you are going to go through the time and effort to mash, why not mash it all. With BIAB, all you need a full boil pot. I'd rather do half batches than partial mash. But enough of that and on to the numbers...

http://www.sierranevada.com/beers/porter.html

Sierra Nevada Porter PM
Robust Porter
Type: Partial Mash Date: 10/4/2011
Batch Size (fermenter): 5.00 gal Brewer:
Boil Size: 4.27 gal Asst Brewer:
Boil Time: 60 min
Equipment: Pot and Cooler ( 5 Gal/19 L) - Extract/Partial Mash
End of Boil Volume 3.90 gal
Brewhouse Efficiency: 72.00 %
Final Bottling Volume: 4.60 gal
Est Mash Efficiency 101.0 %
Fermentation: Ale, Single Stage
Taste Rating(out of 50): 30.0
Taste Notes:

Ingredients


Ingredients
Amt Name Type # %/IBU
5 lbs Pale Liquid Extract (8.0 SRM) Extract 4 52.6 % (or 7 lbs of Pale 2-row)
3 lbs Munich Malt - 20L (20.0 SRM) Grain 1 31.6 %
1 lbs Chocolate Malt (350.0 SRM) Grain 2 10.5 %
8.0 oz Caramel/Crystal Malt - 60L (60.0 SRM) Grain 3 5.3 %

1.50 oz Goldings, B.C. [5.00 %] - Boil 60.0 min Hop 5 18.2 IBUs
1.00 oz Willamette [5.50 %] - Boil 30.0 min Hop 6 10.2 IBUs
0.50 oz Willamette [5.50 %] - Boil 10.0 min Hop 7 2.4 IBUs

1.0 pkg American Ale (Wyeast Labs #1056) [124.21 ml] Yeast 8 -

Beer Profile

Est Original Gravity: 1.057 SG Measured Original Gravity: 1.046 SG
Est Final Gravity: 1.014 SG Measured Final Gravity: 1.010 SG
Estimated Alcohol by Vol: 5.7 % Actual Alcohol by Vol: 4.7 %
Bitterness: 30.8 IBUs Calories: 151.6 kcal/12oz
Est Color: 29.4 SRM

This is awesome! thanks! What temp would you recommend steeping at? Around 160F?

I'm also having some difficulty finding munich 20L. Could I use munich light instead. Or maybe munich 10L?

Sorry I didn't post the full details. I played around with it in BeerSmith and came up with mash at 153 to hit the numbers. But it seem like a bit higher would work well for a porter. For the pumpkin porter I just brewed, I targeted 158 looking for fuller body but ended up a bit lower. It's still in primary so we'll have to see if that works out. I'm sure any Munich would work out fine. I just picked the darkest one but the color will be just fine without the 20L.

I just brewed last night and have fermentation this morning. The OG was spot on with what you got.

just opened the first bottle after 10 days and it is awesome. best beer ive brewed thus far.