Clapper,
You aren't asking the question-that tells me you fall into two triggers "best of" catagory of hunters.
Would you start a new shooter out on geese with a twenty gauge, loaded with hot steel numbers? Maybe not.
From what I've seen, 311s are pretty bulletproof, if ugly, in a primative sort of way. The addition of the "good stuff" bismuth, or, whatever, in a 20 gauge would make for nearly lead loaded comparison in the results.
It is much superior to steel, even newer steel. Last I checked, new steel loads aren't exactly free, either.
Best,
Ted
