FX Superior prep and cleaning intervals with slugs

I have a superior x short 500mm that i shoot a mag (28) or two of slugs every once in a while and the last tin of H&N 23 gr (?) had a white coating like lithium on it. They shot great slug on top of slug to 48 yards, and when I switched back to my usual 18 gr pellets they shot better than they did before the lubed slugs! I think the coating on the H&Ns had something to do with it. I also had some uncoated 23 gr NSA that afterwards shot great as well. So the lube or coating does make a difference and it does stay in the bore for a while. Yes the slugs shot good before, still slug on slug (a flier here and there) but not as repeatable as the lubed slugs, they were more consistent.



oh, this is with .22
 
Just would like to hear if you do any other prep on your Superior liners after the initial cleaning. Also how many shots guys are getting with clean and lubed slugs before a drop in accuracy tells you it’s time to clean. I know all guns are different but trends usually emerge if there’s enough data.

I am shooting the superior also. The other day I had it shooting lights out with jsb 25.4’s, decided to shoot some slugs with Varying success. Went back to pellets and nothing was right. Called it quits and went home.

Decided to clean the barrel for the heck of it, I rarely clean pellet guns. I could not believe all the shiny flake that came out. Hopefully that will take care of the poor groups. Unfortunately I think I’m going to have to do some polishing or making sure my slugs and pellets are clean.