I recently chatted with another 22-250 re loader and his loads were significantly less than what I am developing:
Mine - mid range load of 34.3 gr ADI 2206H behind a 55gr V-Max
His - 31.5 gr 2206H behind 55 gr Supa Ross (Sierra)
Accuracy seems to be very good on the 31.5 gr and I'm wondering if going to a lower starting load is the way to go?
My development process to date, based on some previous reading on where to start is like this:
For the powder and projectile, find the upper and lower recommended loads. Start at 1/3 up this scale i.e in the ADI book for 55 gr, max is 35.5, min is 32.5, so start 1/3 up this range and increase by 1% of max load (of 35.5-32.5 = 3gr = .355gr increments).
Make sense?
So am I starting too high, given my colleague is getting great accuracy with 31.5 gr with the same powder? I appreciate different rifles like different loads, but I am wondering if I am starting in the wrong place. Plus my loads from 33.7 to 35.5 are really not getting closer than around 1.5-2 MOA at best @ 100m.
Another re-loader I know has said start 10% below min and work up by 1 gr intervals to start with prior to refining.
Ive been trying to get an accurate load for my Parker Hale Midland Mod 98 for the past 18months. Significant improvements in consistency since floating the barrel (sanding out the stock). I appreciate the rifle is quite aged (bought in 1980) and maybe less than an accurate beast. But its a project and sentimental thing
I have some 2208, and also wondering if for 22-250 what the better powder is. Ive seen and gotten some other suggestions re powders, so what is the thinking on what is best (whats the tech behind one powder or another?).
Thanks in advance.
Regards,
Paul








