I've started to have this problem with my Triumph. I had everything sighted in and it shot perfectly. When I took it out on Sunday and shot it at 200 yards I was all over the place. I took it all the way back to 25 yards and hit the bullseye with three shots. Went back to 100 yards and it was alittle erratic but I was in a 1.5 inch group for the most part and I figured the flyers were my poor shooting. I took it out tonight and shot a 100 yards and I could not get a group. I know that it is not my scope. All my screws are tight and there is no play. However trying to slip a piece of paper between the barrel and the forend I cant be done. Is that my issue? Or is the barrel getting further broke in and I need to change my sabots and/or powder charge? I'm using 300grain XTP Mag, 100 grains of blackhorn, and the Crushed Rib Sabots. I just really can't believe this. How can I go from shooting really great groups to having my target looking like I shot a shotgun. So does anyone have any ideas?

How's your seating pressure? Today my Accura was acting up and so i ditched the range rod, used the guns ramrod and everything went back to being perfect. Maybe i just forgot how to load that one or something but those moments do leave you scratching.

But in the end, Its Most likely just us.

Obviously something changed. Think back through your last 3 or 4 times to Range. Did you do or use anything different? Temperature? Don't rule out your scope just because your screws are tight. I had one go bad on my 3006 that drove me nuts because it wouldn't group. I almost got rid of a perfectly good gun and decided to try a different scope before selling it. The cross hairs were moving every time I shot. Now I will never get rid of that gun. What scope do you have on it?