Bob,

You are safe using the Seyfried methods as discussed in DGJ and Handloader. That is, stuff the case full of dacron - 13 grains is fine. What Tinker has said on your thread at DoubleGunshop.com is correct advice.

I am one of the folks who hates the "snow shower" of dacron that results from these loads, so I am now using foam wads primarily. I also use felt wads on occasion. (Marrakai decries anything but felt.) Lately I have been using backer rod, but I don't know if you can get 1/2" backer rod in the .450 case. It's great in the .500 BPE.

Graeme Wright has pressure data with his NfB loads. His data are from the Birmingham proof house. The NfB loads have consistently lower pressure than the black powder loads.

Enjoy that .450 BPE.

We need to get you signed up on this board. What has been the problem?

Best,
Curl