Well here's my calculations based on an extract utilization formula I found...GramsExtract=(IBU*hectoliters@End of boil)/(.35*10). Solved for IBU (53), then added Warrior until IBU was achieved.
Used Beersmith2 with 62% efficiency at 5.8 gallons to fermenter with 90min boil. Don't see how the 70IBU in posted recipe sheet is possible with these amount of hops.
Other hops/grain bill were a simple calculation; 1300gallons/5.8gallons=224-factor so CTZ at 90min for example is 7*16/224=.5oz.
OG=1.072
IBU= 170
SRM=6.1
ABV=7.8%
Rahr = 17.1 lbs
c60 = .48 lbs
Corn Sugar = 14.4 oz
Warrior @ 90min = 1.1oz
CTZ @ 90min = .5oz
Amarillo @ 45min= .6oz
Simcoe @ 30min = 1.4oz
Cascade, Centennial, Amarillo, Simcoe @ WPool for 20min = 1oz each
Dry Hopping (Wasn't sure the days so just have dry hopping at 5 days each)
Dry1:
Simcoe = 1.6oz
Cascade = 1.25oz
CTZ = .70oz
Dry2:
Simcoe = 1.4oz
Cascade= 1.0oz
Amarillo/CTZ = .5oz each
Anyone else??
Edit: added extract formula found and recalculated to End of Boil volume. Also this is about 14oz of hops, my other calculation, using a smaller factor, make it around 22oz, and the grain bill would be way high.