That looks like the same rig I used when I shot smallbore indoor matches but mine had the target stock.
Winchester 52B with 20x Lyman.
300? WOW drop for a SV 22lr at 200 in my experience of last Friday's range trip was 24-26". 300 yards would have to be getting close to best guess 40" of drop.200 yards is a hoot. I want to try 300.
My RimX zero'ed at 50 drops CCI SV 51 inches at 200, 144 inches at 300, and 296 inches at 400..... and that's not a 'guess'.drop for a SV 22lr at 200 in my experience of last Friday's range trip was 24-26". 300 yards would have to be getting close to best guess 40" of drop.