2225 doesnt look like its any good mate
Much better off with Re26. I run 63gr of Re26 with a 162 Amax in my 7SAUM, it's looking like you may end up somewhere around 60-62gr with 175's, work up from a couple of grains lower.
Out of interest, in testing Re26 with 180 eldms in my 284win I got up to 58.5gr where i got the first signs of excess pressure.
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