I have a vortex viper PST mounted on a savage 111 in 338 lapua with steel warren rings and factory EGW base. I've taken the base off twice trying to install a 20 moa base from EGW. Long story there. But I put the factory back on tight with locktite. Anyhow. While waiting on my barrel to cool and dry firing the trigger, I noticed the crosshairs slightly jump/wiggle when the trigger is pulled. Everything seems tight, but I'm no gun smith. Problem or normal? I rarely dry fire any of my rifles while looking through the scope, so I'm not sure if it's a problem. Should there be in any movement at all in the scope when trigger is pulled?