Just happened to find a target from last October. The 'grouping' was better, but I didn't note where I was aiming (five targets on one paper) so it doesn't show how far off poa they were.
Went out again today (even colder), kept the rounds in my pocket until I loaded them, and made sure I was resting the barrel on a support, rather than just supporting my hands. Again, 'grouping'
was better but definitely low and left.I think I'll wait til spring to get a better idea of how far off poa it goes before I try any mods for the sights. I saw a picture of a different but similar model that had a rear sight mounted on a leaf that allowed for adjustment. I may be able to cobble together something similar if I can figure how to attach it securely without drilling any holes.
OK. Not the pic I was referring to. I can't find that one again, but the leaf appears to slide into a slot on the top of the frame and is anchored by a small bolt just near the front of the topstrap. The 'slot' on mine is just a round bottomed groove and no bolt hole.