Re: Lead-free shot
> "The only other real alternative to lead for density would be tungsten, not only very expensive but would destroy a shotgun barrel quickly,"
Which is why the normal advice if using steel shot, is to go up two sizes. Then to recover pattern density you add half an inch to the shells, which is why there are now a lot of shotguns with 3.5 inch magnum chambers. Cheaper than bismuth, almost as effective.