I have a GI model Springfield, appx 1500rds made in 2009. I have it at SACS for work other than repairs when I asked the shop this question (paraphrased):
My barrel has downward movement at lockup, it seems to be minimal but it's there, I don't have any way to measure it. It's my understanding that there should be no movement
Response: "It is normal in the GI models for there to be some movement in the factory barrel."
Is this correct? I'm simply seeking a second opinion...thanks!