Thread: Testing a conventional approach to load development

Originally Posted by STC

Barrel cooling does matter, as do plenty of other factors, how much they matter? that is not exactly known. Getting up and changing your shooting posture, has an impact. Parallax dialled out will minimize parallax, not eleminate it completely. fouling can change things too. All minor effects, that generally are not too important when dealing with general hunting precision requirements. But when you are looking at 0.25 or 0.5 moa differences, these minor influences do start to matter. Another thing is poi shift: since you fired all those shots into the same group you would not know if later 5 shot groups had a different poi, compared to earlier ones. So even if one of them was tighter to start with it would be hidden if any poi shift occured. Essentially any "signal" (if it is there) is hidden within other "noise", and thats why both of them show no significant difference.

Not saying you are a bad shot or anything (you clearly are not!). Essentially what you did is try to "prove" that for 2 charge weights, both of which already shot very well in your rifle (for general hunting purposes) there would not be a difference, (despite 3 shot groups indicating that there would be) by introducing a many other factors uf unknown impact into the system.

Your system here (rifle, loads, you) seems to give good (

So how much shooting have you actually done? Ever shared your results? Shot in competitions?. I'd love to hear about the basis for your inputs on threads like this. Do tell us.