Playing around with the new H&N 27gr slugs Gen2 in my Impact MK2. They are grouping pretty good with my current tune. I will be testing/tuning my Impact with the 25gr that I just received from H&N. Hopefully I will get it to shoot well as that is my preferred weight so my Impact is set to shoot this slug and the Redesign 25.4gr at the same power output. One tune for both ammo is my hope. Too much snow and cold to do any testings now. But I will stick to hunting my next coyote though.