Shells dont pattern right and dont kill geese 30 years out - Winchester Xpert Snow Goose 12 Gauge 1 1/4 oz 3 in Shotgun Ammunition

In October 2021 i bought a case of Winchester Xpert Snow Goose shot shells -1550 BB 3 1/2". I started using them during Oregon third period goose season. I shot at several geese 35-40 yard range and did not kill them I heard the pellets hit the birds and they just keep going. I am using a Winchester SX4 with a modified choke. I had other winchester 3" shells 1550 2 shot and they worked fine and they pattern very well and kill close geese.

after two boxes of not killing any geese with these Xpert shells I went to my 3" winchester 1550 and started killing geese at close range but not far shots..

I patterned the shot by firing into the water, the first shot I saw very pellets hit the water the second and third shot just scattered over a very wide area leaving a lot of gaps. I put my extended chock and and did the same pattern testing and got the same results.

I opened one shell and the pellets seem to be pitted and did not roll at all.

I still have 8 of the 1o boxes I will attempt to contact Winchester about this and see what I can do.. I would not buy these again or recommend these