I have a 308 that the groups have suddenly opened up. The rifle went from being a consistent .5 MOA rifle to a 2 MOA rifle with no changes. The rifle is a FN SPR A1 stock except for beddes. It has 1200 rounds on the barrel, mostly 4064 with a 178 eld m. I switched to varget last year and have maybe 300 rounds of that through it. I took the rifle down and checked the bedding, torque, scope base and rings, pretty much everything i could think of. I always clean with foaming bore scrubber and then montana extreme. Always use a bore guide and patches after a nylon brush and clean the chamber with a brush and mope. Do you think its my cleaning regiment? Im trying to get access to a bore scope and ordered some bore paste. The only other thing i can think is my scope crapped out. Any ideas?