Ladder Test for finding powder charge

[It’s Bucky]

@ImBillT you’ve put a lot of thought into this. What are your thoughts on the following:

How many random .25MOA 3-shot groups can you find in these photos? Are these .25MOA rifles or 1MOA rifles? Would you throw any of the shots out as ‘flyers’ when determining your group size or zero?

All 4 loads are the cheapest factory ammunition I could find for each rifle. I chickened out on shooting 10 with the 6.5CM, but wish I would have.

 

[Dougfirtree]

This thread, and some gentle challenging from my brother, has been making me take a dive into the subject of sample size and reloading. Way behind the curve, I know... I've been aware, but resistant to the idea that findings that seemed meaningful to me, probably weren't and resistant to a model of reloading that seems to require even more expensive and hard to find components.
Looking at data and some of the big tests done by Hornady and others is making me reckon with the reality of this stuff, and I'm thinking a lot about some of the ways that load development can be reconceptualized to get better data and not go broke (especially since I'm just reloading for hunting and hunting practice). I've enjoyed hearing people's methods. Keep them coming!

 

[Frequently Banned Troll]

@It’s Bucky Those are pretty insane groups
For factory ammo!