I have a lelya 2.0 set low power 33fpe and it shoots slugs ok but slow , i like mp slugs for it.
I have a R5 30 caliber I shoot many types but my favorite is a arsenal 52 grain best , I do shoot 48,52,55,61,47 gr with it accuratly
I just got a R5m in .22 just tuning for slugs in hi power ,, I want to shoot 30 to 40 grainers in it
I do not use HN slugs they do not shoot good in any of my guns .
I have some LW barrels with no choke of course
LOU