H&N Slug HP II

Been getting some excellent groups with these slugs. I have been through ~8k v2 javelins and they performed well for a while but groups started opening up after some time.
Decided to give these a go and haven’t looked back.
They also make a hell of a noise against pest birds & squirrels.
5 shots each @ 40 yards
.22 30gr H&N Slug HP II on the left and .22 18.1 fx on the right;

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Anyone else been shooting these?