Hi I have a 12ga H&K / Fabarm FP6. It says it's chambered for 3" Shells. I bought some Federal 00 buckshot, and it says MAGNUM on the box. Can I fire these shells safely?

Also, can I fire Slugs? Someone told me once that you can't with chocked shotguns, but this one has that Tribore with the strange looking chocke.


Thanks in advance

Yes, you can shoot magnum shells, 2 3/4 or 3 inch.  Don't shoot 3 1/2 inch shells in a 3 inch chambered gun - even if they do fit in the chamber.  Remember that an expended shell is longer than an unfired one.  I don't know about the slugs as I'm not real familiar with the gun.  You should be able to check out their web site and get a contact phone number.  They should be able to to tell you over the phone.