I just bought a SIG Trailside, it was used, but still looked like new. My question is this...Has anyone found it to be ammo sensitive? and what works best for them? All I had to fire out of it was some cheap Winchester ammo, I think it is called "Expert??" I had a few misfires..and I was wondering if it could be the ammo or if it would be the firing pin. As for the misfires...the rim was dented, but it did not fire, i tried 4 times on one round and 3 times on another, each time the rim dented, but no fire. My other thing, was when it did fire, the shots were pretty scattered, I was wondering what everyone has had the best luck with?