My first 5.7 loads…

WB
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Sunday, November 02, 2025, 19:12 (34 days ago)

These are 93% (6.5 gr.) of the top load of 7.0 gr. AA#7 and rifle primers. The bulllet used is the Hornady 40 gr. red tip. In the handgun they averaged right at 1500 fps with only one that spiked up to just under 1550 fps. Accuracy was very good and right at POA. Quite the ball of fire. The FN is a bit strange feeling with a very high bore axis, but with no recoil to bother its only the feel. I forgot it has a mag disconnect like the HP. It functioned ok but I think it needed a bit more for the retarded blow-back action to fully work with gusto. One round didn’t eject and some black stuff came off the chamber walls to stick on the plastic coated case. Maybe my fault from a dirty gun.

The blue tip round is factory FN.
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There is some slight shoulder movement if you look close. Primers were not alarming but considering they are tough rifle type. I have been tipped to trim cases and be pleased with a “few” loads on the cases.

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