A bit of a loaded question I think :wink:
A load that works for one gun is not a slam dunk that necessarily will work in all others even of the same model. Like the above posts, I have had good success with the 140 gr Core-Lokt and also with the 120 Core-Lokt HP in regards to accuracy. I usually take 2 types of ammo with me when sighting in, normally one or both give me the results I am looking for. In the unusual event that does not do it, I double check my mounts etc before mortgaging the house and buying a ton of ammo of all different brands at the next session. A lot of folks try to rush the sight in process and get frustrated and frequently blame the ammo when in a lot of cases, it is something else entirely
Safe shooting.