It can depend on how long the bullet is and how fast you want to push it. A 75gr bullet that is long for its weight, like a spitzer point boat tail, might stabilize at a lower velocity but it might be borderline at maximum velocity. Switching to a flat base bullet might result in perfect stabilization at any velocity, but I don't think FB bullets are optimum for long range target work. My Mini-14 has a 1-9 twist and it draws the line at 75 grain bullets. It isn't a target rifle, by ANY stretch of the imagination, but it demonstrates a point. I tried shooting some 80 GR target loads, out of curiosity, and they keholed and sprayed all over the place.
This is just my personal experience for what it is worth. Welcome to the forum and to the United States. I think you will like our gun laws more than your home country's!