Needing some of your expertise. I am buying a new Airgun this month and it will be my first competition type Airgun. Im looking for a little advice, I will be shooting our local bench rest competitions at 25/50/75/100. For 25/50 its pellets only, 75/100 you can shoot slugs. I can’t afford 2 guns lol so I got to make do with one! I’m thinking the Panthera or the Impact M4 in 600. Which ever I get I plan on changing the liner to the pellet liner if necessary. Any help is greatly appreciated