A couple weeks ago at the range I had my G 20 out with some new ammo and couldn't hit anything. Started raining and didn't have time to check it out. Went back out this weekend for some testing. This target was sprayed with the G 20 at about 20 yds. from sandbags. You can see where a couple of the bullets key holed. Before this I shot a "group" with the same ammo at about 10 yds, about 4", but all the shots went straight through. Seems the tumbling started between those two ranges. After this I switched to a different ammo and group size shrunk considerably, with no weird stuff going on.

Any ideas why ammo would act that way? It was factory new, bulk USA made, headstamp is JAG.

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