Thanks guys for the great information. My question was poorly written (I shouldn't try to write something technical at 3 in the morning) but the responses were great. What triggered the question was the difference in OAL in the Hornady book for 44 spl 240 SWCs at @1.46" and the other books and lists for that round at 1.5" to 1.55". When I measure the length of the bullets from Hornady and MO Casting they are close to the same. I also wonder about what difference in pressure the seating depth makes. I have typically loaded longer than the minimums.