I recently bought my 15-22 and have only shot Fed Auto-Match
thru it so far but...
I shoot NRA conventional pistol and have shot cases and cases of CCI Std Velocity. The only problem I have ever had is excess bullet lube on the outside of the bullet. (it looks like wax)
This will occasionally prevent the round from fully chambering in a tight match chamber.
It's a very rare occurence.
It's the only thing I shoot indoors and at 25 yds outdoors.
Since it's std vel it's a little weaker but I bet it works.
JLK
Should work just fine. I hunt with CCI Sub-sonics and about the only difference between the two rounds is that one is HP and the other RN. It's also likely to be more accurate/consistent than high-velocity offerings.