Before I started reloading, I noticed my Savage .243 definitely liked some ammo better than others. I tried factory ammo by Winchester, Remington, Federal, PMC with so-so results. I tried bullet weights from 80-100 gr. Then I bought some Hornady ammo. A box of their 95 gr Light Mag worked better than anything else had. Then I shot some of their 100 gr SP ammo. It wasn't the Light Mag, I think it just said Custom. That was magic stuff!!
Now that I reload, I use a variety of 95 and 100 gr bullets and a couple different powders. They all seem to shoot pretty well, just as good as the "magic" Hornady factory ammo did (but not better). I might be able to wring even better performance out of my own loads this spring, but they are under 1" now, which is pretty good for me.
But I don't think you can generalize that your rifle doesn't "like" a certain weight bullet based on the performance of one box of one particular brand of factory ammo. There are other factors that are more important than bullet weight.