I agree wholeheartedly with
@Talyn and
@Bassbob above.
@Trebleg1 , the possibilities are near-endless, and it's really going to come down to your desires and your budget.
At the lower end of the budget cap, you're not going to get glass that's crystal clear and/or can really support low-light shooting. On the other hand, spending a lot on the optic won't guaranty that you can actually reach out to the limits of the cartridge/gun platform if you haven't invested in training/practice, in vetting your ammunition and gathering DOPE (data on previous engagements).
Similarly, you'll want to invest in a solid mount: you don't need a top-flight quick-detach if there's no need for such, but if so, you should nevertheless still invest in a solid, fixed mount or rings. This should definitely figure into your purchase budget.
And while having a bipod isn't a necessity, understanding that you'll want to shoot from a solid, final firing position in order to attain maximum accuracy/precision is - if you want to do this instead off a rest, bags, or even improvise by using a pack/range-bag, that's definitely possible, too, but if you do want to go with a bipod, that's going to be yet another expense you'll want to figure-in: some of the top-tier bipods are not inexpensive.
I think that
The Armory Life's December 8th article by Jeremy Tremp (
https://www.thearmorylife.com/review-saint-edge-atc/) presented some very reasonable hardware choices (where the author specified "a Leupold Mk5 3.6-18×44 FFP on an [ADM] Recon SL low mount [, plus] a B&T Industries Atlas Bipod" with ammo that he used being the "Federal Premium Gold Medal 77-gr. Sierra MatchKing") that enabled him to reach out as far as he did on the target size that he did (1,300 yards on a full-sized IPSC plate), but if your demands aren't as rigorous or you simply don't have access to a range that even remotely allows you to reach that far - or if you don't want to spend that much on ammo - then your hardware demands can also be scaled back to match your needs and wants.
For me, for example, I'm happy and content plinking on that full-sized plate at the 400 yard line, in daylight - which is rather easy for me on a typical 16-inch gun with just a mid-range Vortex Viper PST (first-generation, 1-4x), using nothing but average and inexpensive 55 gr. range-fodder ammo.
This is shooter-dependent, too, of-course: my buddy, who is a better shot than me overall, can easily engage the same out to the 300 yard line with just his 2 MOA,
unmagnified, red-dot.
With those examples in-mind, I would encourage you to - as the others have said - look first at your needs/wants and then at your budget, and go from there.
As it stands, your question has a bit too much wiggle room for more targeted (sorry, no pun intended
) advice.