OK lets try this from another angle. We have 2 loaded cartridges, identical in all respects. Same case, same primer, same wad column , same shot weight and size, both loaded to 7000 psi. The only variable is the powder, one is loaded with BP, the other with smokeless or whatever. Will the velocity be the same? I say yes, prove I am wrong.

Last edited by james-l; 12/27/06 11:03 PM.
I learn something every day, and a lot of times it's that what I learned the day before was wrong