It all depends on what you value.
At baseline, you should know that airsoft will never be anywhere near as accurate as RS shooting. The very top end of upgraded tuned spring snipers struggle to make accurate shots at 100-110 meters. For an OOTB rifle, you shouldn’t expect more than 80 meters even with the best ammo.
You should also know that spring snipers are not more accurate than any other class of airsoft weapon. They all shoot 6mm plastic balls (except for some very rare, odd, irrelevant models that shoot 8mm), and so the physics are the same between every airsoft gun.
Secondly, I would suggest you go over to airsoftsniperforum.com, make an account there, and ask the same question. They specialize in everything to do with long range, and someone on there has dealt with every model you’re considering.
Back to what you value—pure accuracy out of the box isn’t the only factor you should consider. I’m not an expert on spring snipers, but you should be on the lookout for parts compatibility with common models (IE, TM VSR), because if anything does break or wear out you want to be able to fix it, magazine compatibility (some models feature horrible mags).
And finally, since I’m running out of spring sniper information, remember that price tag does not mean quality in any way shape or form! The best all round “buy-and-don’t-touch” spring sniper (compatibility, quality, accuracy) is currently considered to be the Novritsch VSR, despite there being plenty of far more expensive options.
Good luck on the journey!