As the OP mentions going out to 500-600yds at times, I’d certainly lean on a 1/8” twist. While a 75gr bullet at 2900fps is not blistering fast, it’s made up a lot of ground against a good 50gr offering by the time you reach 300yds and it excels past that range. The trajectory of a 75 at that velocity also mimics that of many standard big game rounds. Handy for practice.
That’s the same darned reason I’ve gotten into them. Pretty good training for using others at an easy to shoot price. Beyond that, they’re just fun.
