Yesterday my hunting partner and I went out to sight in our big guns. We were working at 400 yards, thats the sight in for those big Weatherby's. Norm laughed at my RCBS shooting platform. Norm uses a table and sand bags. I fired five shots, norm fired three. We walked down to check our groups. I had a three inch group, norm had a nine inch group. Nine inch group, he was frustrated. So he went back and cleaned his gun in preparation of shooting another group. I put mine away.
While he was doing that I pulled out the spare gun for Moose camp, my Handi 30-06. I sat at the bench and took three shots. I was using a load I developed for my 30-06 Ultra Comp instead of the loads I normally use for my old Handi. 165gr Sierria HPBT in front of 56.5gr of IMR-4831. Norm laughed about me using that cheap single shot. Especially at 400 yards. He then sat down and took his next three shots. We walked down to check them. I now had a four and a half inch group with the Handi. Norm still had a nine inch group.
Norm went back and shot another three shots at 400 yards. I moved on back to 500 and took three more shots. I used the 500 yard line on the scope. This time I drove the Jeep down to check the results. Norm still has a nine inch group. I squatted in front of my target, looking at the opened up group. Suddenly the target was ripped from the box I was using as a target holder. Norm wadded it up and threw it in the river, yelling you don't need to measure that, let's go. Norm was really frustrated.
When I got home I measured the holes in the box. My group at 500 yards had opened up to six and three quarters inches. I also noticed I was a bit high. I placed a target over the holes and decided I was roughly four inches high at 500 yards. Still tight enough for Caribou. A bit iffy for Wolves or Coyotes. I think the group opening up was more me than the gun.
I love to see Norm get frustrated, it makes him sit down and work harder. Bow that he is retired it gives him something to think about, instead of bugging his wife. Still have not told him my best secret. I use a concentricity gauge, a device that measures the alignment of the bullet to the case. I just bought the new Hornady one that also trues up the bullet in the case. One of the things I learned from the pros about reloading. I even check my factory ammo, and find quite a bit of it out of alignment. Since I started using the gauge my groups have really tightened up. If there is a flyer, it's all my fault, can't blame it on the ammo.