[Unclenick]

This is a case where going to the source is wise. The Hornady manual says that bullet should be seated to 1.230" COL.

The most efficient full velocity load listed by Hornady is with Winchester WSF. 6.3 grains to start and 7.7 grains maximum. Power Pistol is 6.9 grains to start and 8.5 grains maximum. Most economical load listed by Hornady is Tightgroup with 4.8 grains to start and 5.9 grains maximum.

All these loads are 800 fps at the minimum from a 5" barrel, which is probably what they consider minimum for expansion? 1000 fps at maximum for the first two powders and 950 fps at maximum for Tightgroup.