Best results I have found come from 4064, 4320, 4350, 4831......every rifle is different, but it seems to work prety much in that order. You can probably flip flop the top two as to the results you get.....and also the bottom two as to the results you'll get between the pairs.
Loads where I started. But you should work up anyway.
4064.....44Grs
4320.....47Grs
4350.....53Grs
4831.....54Grs
4831 gives the best velocity of those listed.
However I get the best speed with RL22 @ 60.0 Grs.....but that is probably above the max. Not sure, so be careful to work up.
According to my log it did a nice 2812 with a Hornady 180 from a 24 inch barrel. It shot groups that I list at MOA, so for me that is anyting around an inch and not much smaller. Say 1.000 to 1.200, I record as MOA rather than record actual size. From the IMRs, I experienced slower speeds, but better accuracy. Some in the .4 and .5 range. But they were slow, usually around 2500 fps. Not to say they can't be worked up to faster speeds.
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