The Earl o SAmmich, I like the performance of Power Pistol despite the flash signature it has. Be sure to check on the barrel length used in the test that they were using as a longer barrel will yield a higher velocity number than the shorter ones.
10.2 grains should be a great load for the 155 STHP but could likely push even more based on this information yielded from QuickLoads.
See picture attached below
Attachments:
You must be
logged in to view attached files.