I am a little disappointed with the accuracy of my 243 model 10. It is basically 7/8-1 MOA at best. Today I tried a 100 grain bullet again and it was horrible. Over 2 MOA and some were well over that. I had not had good luck with that weight before and blamed some of it on wind but today was almost perfect. I had some 80 grain and it shot much better but not what I would expect. I have had the best luck so far with 75 grain bullets, not a lot better than the 80 grain but I have shot enough with both that I am comfortable saying the 75 work better. Should I go lighter? They list 65 and 70 grain and even lighter but I think a 55 grain would be too light in that caliber. Keep going or sell it? It is shooting better than when I first started but is not where it should be.