This guy is really milking this tikka thing.

[5811]

Its been demonstrated on here. Groups from the same rifle, one at a time or 3 at a time for 10 rounds and groups from the same rifle for 10 rounds as fast as they could be shot and the group size is exactly the same.

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The demonstration I believe you are referring to established that the zero didn't change. Most/some of the group sizes opened up, which was attributed to mirage.

 

[grfox92]

The demonstration I believe you are referring to established that the zero didn't change. Most/some of the group sizes opened up, which was attributed to mirage.

That's not how I remembered it. Was it a specific thread you are referring to? What im referencing it wasn't the specific topic of that thread, but pictures were posted.

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[5811]

That's not how I remembered it. Was it a specific thread you are referring to? What im referencing it wasn't the specific topic of that thread, but pictures were posted.

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Thread 'Cold bore zero versus (very) Hot bore zero “test”'

Sep 9, 2023

Discussions around “cold bore shifts” and “cold bore zeroes” versus “warm or hot barrel zeroes” are constant. So is the belief that barrels “walk” when they heat up or that groups open when they heat up.

After having multiple discussions, @Ryan Avery and Jake @Unknown Munitions and I set up a day to shoot and measure what happens. Quite a bit of discussion happened with getting everyone on the same page, and explaining the limitations and resolution that would be able to be measured. Basically- the more data, the mare accurate the results will be. However, there is a...

• Formidilosus
• Replies: 306
• Forum: Firearms

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Looking at it again, the groups didn't open up as much as I remember. Probably just sample size variation.