Hi everyone. I have a stupid question, first I'll give you a bit of background info. I recently bought my first rifle- A remington 700 sps tactical in .223. When I first started shooting it, I found the accuracy to be quite poor. It seemed to be all over the place, regardless of the ammo that I used (I still haven't shot any high end ammo out of the gun). I could pull off the occasional sub MOA group, but most were 1.5-2 MOA. This has gone on for several shooting excursions. So last week I removed the action from the stock, as I was getting HARD contact between the fore end and the barrel. I ground out the spot that was contacting and reinstalled the action. I took it shooting yesterday for the first time with the barrel free floated and WOW! What a difference. I shot 5- 3 round groups, all under 1 MOA, shooting Federal American Eagle 62gr FMJ. Needless to say I was very pleased. Today I went out shooting again. Same ammo, and shot all over the place. Some groups were 3 MOA. I'm confident it wasn't me, I felt I executed the fundamentals of marksmanship not perfectly, but quite well. Frustrated, I returned home, and while drying off and oiling my rifle I heard a weird clunking noise. I quickly discovered that my bipod had come loose- very loose, and was almost falling off of the stud. Could this be what caused my issues today? Any thoughts?