I'm trying to open my new Hatsan blitz to make sure all the screws are tight and its properly lubed. The screws do not want to turn and I feel if I use any more pressure I will strip the screw heads. Do they use Loctite on the panel screws? Do I need to hit it with a heat gun to break them lose? I was using the right size bit on a ratchet. I should have easily broken the screw lose but it didn't budge. Just want a confirmation before I put heat uncessarily on this rifle.