SEE IF YOU CAN CHECK OUT SOME RIFLED CHOKES THAT MIGHT FIT YOUR GUN.I DONT KNOW ANY OFF THE TOP OF MY HEAD THAT MAKES A RIFLED CHOKE FOR A PARDNER OR NEF. I KNOW BRILEY DIFFUSION CHOKES ARE AWESOME. AND THEY WOULD SURE THROW THE SABOTEDSLUG OUT OF A SINGLE SHOT WITH INCREDIBLE ACCURACY. TRUST ME IF YOU ARE ABLE TO LOCATE A RIFLED OR DIFFUSION CHOKE FOR YOUR SINGLE SHOT, YOU WILL BE PLEASED THAT YOU DID.I HEAR ALOT OF HUNTERS SAYING HOW ACCURATE THIER SINGLESHOTS ARE, IF YOU PUT THE RIGHT CHOKE ON IT, TRUST ME....YOU WILL BE IMPRESSED.