Long range groups opening up

[Ridge Runner]

put a level on it and shoot a couple groups.
RR

[j_unzicker]

Thanks for all the thoughts. I'll try some of these things and report back to you if I pinpoint the cause.

[Boss Hoss]

I shoot 1K competition and load development starts at 500yds. There is no way to use results at 300 or 400 and assume 1K. That being said what your ES? Too many variables to discuss because the longer ranges magnify any shooter error by orders of magnitude.

[muleyman]

Several years back I had basically the same problem and come to find out it was mostly me. What I found out as I was using a pretty much factory but good shooting rifle is that really MOA is not good enough to hold the groups together at longer distances. Yes it is nice, however with a gun and shooter just holding that standard, any and I mean any variance in the shooter and loads can start to make a big difference in the groups out at distance. I don't know your shooting ability but in my case I was learning basically "How to shoot long range" as I felt and really was a good shooter in close but as the distance grew so did my groups. Just food for thought.........

[j_unzicker]

My ES is 25f/s.