Tried these 7mm Rem Mag loads today at the range- 2 different projectiles, different grain wt for the powder. Best combo shot ~1 MOA at 100 yards:
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I had a clover leaf with the first 3 rounds but 3 doesn't count. Not bad considering my excuses du jour, lol: jet lagged, eyes tired w/ only 7X scope, wind. With typical factory loads this is a ~2 MOA rifle- old post-64 winchester model 70. Oh, the new Timney trigger helped too.
Hodgdon 4138 57.0 gr, 175 gr SMK's, CCI 250's, 3.29" COL. I might try a little hotter- this load didn't beat the crap out of my shoulder like some factory hunting loads do. The old Winchester is a lighter weight version- Dad carried it on caribou hunts in Alaska and elk hunts in Colorado. Anyway, I'm happy with the results so far and might be close to the limits of this rifle.