Hi! Love the .25 Maverick w/ 600 mm barrel and no complaints but would like to setup/switch to a slug for a dedicated pest gun. I'm not looking for long range shots but just 50-80 yards with the occasional 100 if everything is right. Right now gun is mostly stock shooting the 34g FX pellets. I purchased the carbon fiber liner but not installed yet. My question is, do I stay around the 34g in a slug? Will I need the heavy liner and what brand or weight slug is going to be my best bet for those ranges? Oh and a tune if you have one would be great too! Thanks in advance!