Marzen
There is along history to this beer, worth studying to appreciate the style fully (the George & Laurie Fix "Vienna, Marzen, Oktoberfest" book of the Classic Beer Style Series is worth hunting down) and one recipe alone cannot do justice--most modern styles guidelines have little relevance to the history of a beer style. I still have no handle on the style)
Trad Okt/marzen, 19l
3.4K Pils (German Pils, not the Oz stuff)
German light crystal malt, 170g
German dark crystal malt, 170g
english caramel malt 9light crystal) 20L, 170g
4%AA hops, Tett/hallertau/Saaz 50g for bittering & flavor/aroma
OG 1059-63 for which the above grainbill is way insufficient
FG 1012-6 which is not a huge atenuation
IBU: about 25
Yeast: 34/70dry or WY2308
To be more traditional, up the OG quite a bit
OK, bigD, what I have posted is maybe not much help, except to show the complexity behind some beer styles. Modern style guides will often WAY understate the OG and IBUs. Do some research! A recipe database may not help understand a beer.
What is German light & dark crystal malt?? YOU tell ME!
Jovial Monk