I finally received a new 700mm SUPERIOR liner(my previous posts have been with 700mm Superior HEAVY liner) tonight and shot the following targets at 100 yards:
Jury is still out. 700mm Superior HEAVY doesn't like pellets and definitely shows a preference for particular weight/size of slugs at certain speeds. Early testing leads me to believe the Superior is much more forgiving of speeds and ammo. All ammo I have tried shoots GOOD, but need to shoot more to figure out what ammo at what speeds work best. Both of them are VERY easily cleaned compared to older STX liner tho. Polished maybe?