Here's something you might try, although I don't know how probibitive getting to the range is in your local...Hi everyone, I need some help. I own among many other rifles of sako finnlight in 300 WSM. For the life of me I cannot sight it in anything better than a 3 inch group... Unfortunately, I have to admit this is due to my inability off managing the recoil and shooting it without a flinch. The gun is about 7 1/2 pound scoped and it beats me up bad. I also own a 9 pound 375H&H and I can shoot that one with no problem... This little WSM however just beats me. I'm planning to take this rifle for a mountain hunt this summer and I am wondering what should I do to properly sight it in? Would you have it threaded and use a muzzlebreak or a can? The problem is I detest muzzle breaks and a can make the gun rather unwieldy. Would you think sighting it in in a lead sled like device would be reasonable? I can shoot it for a couple rounds without the sled but then the wheels come off as it starts to beat me up, therefore I am unable to even sight it in right now.... Anyways, any suggestions are welcome and if you think it is best to thread it where would you have it done? I live in by the twin cities in MN.
Try shooting just one good shot with that rifle, every trip to the range. Make a correction for zero (if needed). Then shoot other fun guns. After a few trips, you should be dialed in and know if the poor accuracy is due to flinching or not.
Unless, the rifle really has you beat-up and you can't get off a shot without the flinch. Then, you need to "fix" it (the gun, with numerous methods already detailed in prior posts) and get past the psychological side of it or send her down the road.
Also, having another good shooter shoot it would be a good way to rule out the gun. A lot faster too...
Best Regards and God Bless, Col