Yes 125s are where I had the problems. Magnum primers seemed to help a little with my loads. I did find the crimp is critical. Some bulk bullets I tried had a very shallow cannelure and I had spreads of over 300 FPS with those. Also noticed Accurate Arms has changed their data for that combo several times. In one of the manuals, the first I think, they even said Not Recommended for #9 with 125s. I found it simpler to use 110 for the few 125s I load now.
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