Better at distance

[Canuck65]

I’ve been playing with a new Tikka T3x CTR in 6.5 Creedmoor and noticed something on multiple range trips. Groups at 100 yds are ok running approximately moa at 100 yds but .6 to .75 moa at 200 and 300 yds with the same load. At 100 it seems consistently to have 2 touching and a half inch gap with 3 touching. The groups at 200 and 300 are normally just a nice round group usually more lateral spread than vertical spread. I don’t have a chrony so I don’t have any data. I don’t shoot past 100 yds often but when I do typically groups get worse with distance not better. I was shooting off an ok front rest with a rear squeeze bag. Rifle is stock and the barrel is free floating. Is this something in my shooting technique?

Strange question, but is the firing position higher/lower at the 100 or 200 range? At our club the benches are maybe 10 or 15 meters higher than the target board on the 100, but completely level on the 200. Also, the 100 has a weird wind swirl thing that happens because of the very high berms. It works like a funnel. To add to this, the 100 runs parallel to the prevailing wind and the 200 runs perpendicular. I get better groups at 200 as well, but I believe it’s because of the conditions, not the load.

Just something to consider.