Yes, 46.5 grains of H380 and a 168 grain Sierra Match King. CCI BR-2 primers are preferred over the WLR for me. I've shot some .364" groups with it, but 1/2" and a hair less is very common. I need to try some 175's in it. I got the rifle from a friend, and the custom hand dies and the load info. I thought I could come up with something better, powder wise? Wrong....it works. BLC-2 comes pretty close. Even switching primers around opens up the groups a little. My buddy and his pops, definately did their homework. My understanding was, 5 rounds were fired when the rifle was new, and the brass from those rounds were sent to Neil Jones Custom Dies, and he took it from there. All I know is when I needed a new de-capping pin, he was a very nice guy to deal with.
It'd be kind of fun to try a high power match once...or at least watch and see how they work? Doubt I'd be very competitive at it, but it would be interesting to see.
I wonder if they have some kind of varmint rifle class that allows optics? That would be fun!
ETA: No chrono, sorry. I think the Sierra manual showed the 69 grains @ 2700 fps? Maybe 2600 on the 77 grainers? Those seemed to be the "magic accuracy numbers" in all of my manuals, so I just worked up to it.