I think that the general consensus is that slugs shoot best from none choked barrels. I've only had similar results as you from all of my sub 12 rifles. Not sure what type of barrel is on the sub 12 AGT Vixen, but I'm sure I've seen someone shoot slugs very accurately though that.
RWS Superdomes all day long with Weihrauch's has been my pellet of choice for over 35 years in all my Weihrauch's
I think that the general consensus is that slugs shoot best from none choked barrels. I've only had similar results as you from all of my sub 12 rifles. Not sure what type of barrel is on the sub 12 AGT Vixen, but I'm sure I've seen someone shoot slugs very accurately though that.
I'm not a fan of zan
Agree, H&N far superior slugs