As you probably already know there is heaps of stuff on Google but a lot of the loads need subscription so you cannot see the actual powder charges..
RWS brass seems to have a water capacity of 49cc. Here's a Quickload analysis using 2209 and a 69gr Sierra. I don't know if this is the best powder for the load but it appears in several Google hits. QL automatically comes up with a water capacity of 49cc. I've used a full case load to see what pressure comes up. The velocity roughly matches some of the Google loads.
GPM should be along soon with better data.
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