Thank you for posting this. I chrono\’d this load today. Started with 5.2 Silhouette., then 5.4 and 5.5. The 5.2 load did strange things; not sure if the chronograph was glitching, but I tossed those results and moved on.
These results were with a Sig P365 with a 3.1\” barrel, 124 grain Nuke. Brass was once-fired CBC (didn\’t like it, won\’t use again) and CCI 500 primers:
5.4 silhouette @ 1.065 COAL gave me an average of 1049 fps (7 shots), with an extreme spread of 29fps and standard deviation of 8fps.
5.5 Silhouette @ 1.065 COAL gave an average of 1052fps (8 shots), extreme spread of 17fps and standard deviation of 6fps .
Unfortunately, testing got cut short – work beckoned – so I had to pack up and call it a day, but so far this looks like a fantastic load range for a short barrel carry pistol.
The standard disclaimer applies: I am not specifically recommending -anyone- base their loads off of my data, such as it is; I am simply reporting on my particular results in my particular firearm. Use best practices, always, when working up a load.
-BFS