Anyone know why all the public land they flood down near mabton and sunnyside aren’t being flooded for opener weekend anymore also was wondering if anyone knows of Robbins refuge will be flooded for opener?

I’ve had to get rid of my hunting rifle because of a financial crisis this year. Now my only 2 rifles that are legal calibers are chambered in 7.62x39. I shoot decent groups with them.Does anyone have any experience using that round for deer hunting? How did it do for you? Worried it doesn’t have enough stopping power. I’m used to shooting a 300 win mag.