I get once fired locally on a pound for pound trade for just about any brass. Last time around I traded like 20 lbs. of 45 acp, for 20 lbs. of .357 of which about half was new IMI and Starline brass. Works out great for me, cause I don't even load 45 acp..
Speaking of, I remember a site that does just that, I think he trades just about any brass on a pound for pound deal, might be "brassman"?
GS