Well after a couple of test loads of the new batch 2209 can safely say tht it was my other batch of 2209 that was giving me the pressure spikes. Very interesting and not something Ive ever seen to this extent.
So 41.5gr of the new batch of 2209 shows no signs at all of high pressure at all. No ejector imprint or wipe, no heavy bolt lift and no flat primer or ugly sharp cratering. I would be more than happy to push this load much more.
The pic shows on the right hand side; my pet load of RL16 with a 130gr TMK at 2927fps shot as a fouling shot right before the left hand case of 2209 loads which gave me 2659fps, 2653fps and 2657fps with 139gr Lapua scenars.
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