Johnny & Cheapo,
Go back and read my post again.
It's a variable thing. For some reason lead slugs CAN give higher pressures than jacketed with the same loads.
In other loadings, they'll give lower pressures, and in others, virtually identical.
The general rule of thumb is, though, that lead bullets will give lower pressures, but again, that is NOT always the case.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.