H110/Win. 296 will run 170s to it's highest velocities with lowest pressures. I am also wondering about AA1680..also a ball powder that is just a little slower than H110. From a 20" carbine barrel the 170 will run 2100 fps with 26 grains of H110.... Will have to look at my notes to see what they were doing from handguns...
Bob
ps..try to find the cast iron skillets that are made in china...the ones made in the USA that can be cleaned up is about a $30 and up target...
