[I will get a good print made up. Imagine a 300wsm the length of a rum. It adds a 35deg shoulder and a flat from the base to the .74" mark in the chamber. The base and shoulder diameters are slightly larger. It allows for an extra 4% capacity over the standard rum with basic computations, but I haven't finalized the using Gr of water.
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MNbogboy:
Something like this? Water capacity automatically calculated. Curious how close this is to your thoughts on design. The COAL was auto generated and not probably close to what you have.