I purchased a jug of Precision Rifle and tried it this weekend. I am shooting a 20" AR15. Load is 25.3gr PR behind a 69 gr SMK with a CCI 450 in LC cases.
First, the powder meters very well through my Uniflow measure and the loads I shot were measured not weighed. This charge filled the cases just above the base of the neck, so they were slightly compressed. The shooting weather was breezy and sunny 68*. I shot 10 rounds through the chrono with an average velocity of 2809 fps and ES of 36 fps.
I next shot a 10 shot group at 100 yds, prone position with a sling and iron sights. Eight rounds went into 1.25" with two fliers out to 2" (ugh), this is about as good as this old man can do.
As a preliminary test goes, this looks reasonably promising. I will chrono again in the winter to see how the load holds up in cold weather.
405wcf
