Just took my 12.5 out for the first time today. Put about 75 rounds through of various ammo, plus slugs/buck/target stuff. Ate everything I threw at it without a problem at all. It was about -10C as well. Grouped nice at 40 yards, I just have to adjust the ghost rings. If anyone has any tips on that it'd really be appreciated! Lol. I've cycled it hundreds of times this week and it's already really smooth. The finish scratches fairly easily but honestly, who cares? It looks cool with the odd scuff as it'll be my new bush/camp gun. Not much kick even with the 3" magnum slugs, really comfortable to shoot. I bought some acrylic paint and put a dab of bright whiteon the front sight to make it easier to see, as well as a line across the back sight housing for easier target aquisition.
What a fun little shotty to shoot! Can't wait to head out again!