Unfortunately the ghost is not capable of shooting slugs . Brocock has employed a out sided to come up with a barrel which will shoot slugs and he is working on the internals as well . This new ghost will not be available until next summer. Any one on Facebook join this page...
apparently discovery scopes were very good the ones before May 2021 which I have two but any after that date aren’t that good at all and I have one and I must admit not a patch on the older models
I have a mk1 500 mm barrel shooting ZAN 21 gr .22 slugs at 950 fps . It’s my go to gun and shoot out to 120-130 yards with no problem. Why would I need mk11 or even mk3