What ship and specifically what hard points are you putting them on ?
There are a few ships that need slight "nose up" to fire hard points placed on the underside of the ship ..
Adder initially, though now it's my Cobra Mk3. Put them on the Class 1 slots (Multi-Frags on the Class 2s).
I have essentially specced my Cobra for Trading, Exploration and low-level Combat.
I have 2 Gimballed Beam Lasers, 2 Gimballed Multi-Frag Cannons, 2 of those Turrets that shoot down missiles, Military Grade Bulkheads, BDS, ADS, Hull Reinforcement Package (can't remember which, but it cost like 20 - 30K), Class 4 Shield generator and power generator (I think my max power limit is about 14Mw and I'm just under 12 with Hardpoints deployed). Multiple upgrades to everything else (2 Class 4 Cargo racks = 32 space, lighter (D) Life Support and Sensors to decrease mass), the best Power Coupling I could find (cost like 150K+).
I mean, I've spared very little expense for such a relatively early-game ship, so I'm confused why I'm getting torn up so easily. The rebuy cost is over 150K credits, so my Cobra Mk3 must be worth, what? 3 million credits?
I don't know. I'm kind of new to all this. :/