That is the article I was referring to.

As for Hornady, in cross referencing loads for Bi and Pb using the same powder (longshot), Win AA, W 209, and wad WAA12R, you will find that when the shot and powder weights are the same, pressure and velocity are effectively the same - within a few percentage points.. I

f you load using volumetric measures and simply substitute Bi for Pb, using the same measure will result in a 13-14% reduction in the weigh of the shot column and the pressures drop substantially. In other words, substituting Bi for Pb by weight seems quite reasonable given the Hornady data and substituting Bi for Pb by volume (as most of us do with our reloaders), appears to be VERY safe.

I find no Hornady loads for using buffers, albeit, I'm haven't dug real far. I don't want higher pressures than what I find for unbuffered loads, and I am not going to shoot waterfowl at 60+ yards.


_________
BrentD, (Professor - just for Stan)
=>/

[Linked Image from i.imgur.com]