Is there a benefit to using one media over the other?

They are the same price so I can really apply the "you get what you pay for" analogy.

I saw in another post that corn cob lasts longer (more cases) than walnut hull.

I load .32, .38, .357, .9mm, .40S&W, .45, .222, .223, .308, 30-06 and a few others.

Is media one better for me than another?

Thanks-

Bill