Cause of this?

[DarrellS]

Is this caused by barrel heating? Waited 4-5 minutes between shots. Or is it me?

[Stick1]

Could be. It could also be a parallax issue. It is often the culprit when seeing split groups that are still tight like that. Usually heat or other issues will show themselves as a more random dispersion.

[DarrellS]

Still not a bad group out of the APR, I'll play with it a little more tomorrow. I think I'm getting close to THE load though.

[RangerRick2012]

They all look like kill shots to me.

[Stick1]

Looking good so far. Inconsistent hold or cheek position is one more thing to look out for when you start seeing split groups. I struggle with that at times.

[Killer]

Looking good so far. Inconsistent hold or cheek position is one more thing to look out for when you start seeing split groups. I struggle with that at times.

This

[Dave]

If it's a short action try a group where you don't come off the rifle between shots.

[DarrellS]

If it's a short action try a group where you don't come off the rifle between shots.

It's a 280ai.

[DarrellS]

I'm going to double check parallax tomorrow.

[DarrellS]

This group is still 1" which isn't bad but the gun is capable of better. I bumped this load .5gr and it tightened up from the previous load. I bumped 5 more .5 which puts me at book max. See how they go tomorrow. No pressure signs so far. .010 off of the lands.

[bboswell]

Stick1 is all over this!

What glass are you shooting?

I really wish scope manufactures would take the numbers off of the parallax adjustment.

[DarrellS]

VXIII 6.5-20×50 Long Range with mildot reticle.

[DarrellS]

Stick1 is all over this!

What glass are you shooting?

I really wish scope manufactures would take the numbers off of the parallax adjustment.

This scope is not numbered.

[bboswell]

VXIII 6.5-20×50 Long Range with mildot reticle.

Good glass. How did you adjust parallax?

[DarrellS]

Until I stopped getting movement in the cross hairs, I thought. Lol