5 mph wind should show less than 1/2” at 100yds.
A bi-pod that’s not being preloaded on a slippery surface is not ideal for load development.
Anytime a variable is introduced into a load , I start from scratch.
2 years ago I picked up some CCI 250s and they were a pain when used in my 338WM.
The 90gr AH have been little stinkers it 2 of our 257 Wbys. This summer I might try H4350 and see what I get.
The 124gr HH and 404gr SH soot great for me.