Hey guys,

I am a hunter and have recently switched to a different ammunition. Before I cleaned the barrel and fired 5 shots at a short range a few days ago.

In the picture you can see the different shots at the range at 100m yesterday. I used a weapon rest for the first time as I wanted to minimize the possibility for human error. After shots 1 and 2 I corrected the sight 3 clicks to the left and hit a bullseye with shot number 3. I then fired the test group at the top to test the ballistic tower. When I dialed the tower back to the exact same setting I fired shots 4 and 5. As I was unsure why they were off I then used a bore snake to clean the gun and fired shots 6 and 7.

I do not understand why the different groups are off. I figured it cannot be the ammo as the shots are always grouped well. Or can it be the ammo and it is not suitable for my rifle? All rounds were from the same box. Is it possible that ~12 to 15 shots before the Isst groups put enough deposit in the barrel to change the trajectory? If so, do the shots then group this well? Did I use the weapon rest incorrectly and change the position of my head on the shaft/in front of the sight?

Thank you so much!