Hi all. I recently picked up my first bolt gun that was not a hand me down. A Remington 700 .308 with threaded barrel. I bought a 51t blackout flash hider mount so that I can use my can on it. When I threaded the 51t on (no rockset yet), I can still see some exposed threads of the 51t inside even though the mount has hit the shoulder on the barrel. Is that normal? It is not the deep socket mount, either. From looking down the barrel end, I think I can see 3-4 full threads on the 51t.
Should I be concerned?