Bin the scope.
600 bucks doesn't get you far so save up a bit.
Look out for a used Bushnell elite tactical like a dmr or xrs, they often go up for sale for great prices as Bushnell is seen as a crappy budget brand. The elite tac models are made in Japan and are excellent for the money and I'd recommend them over any vortex save the razor line. I bet you could find a gently used dmr2 or xrs2 for under a grand and it would be 10x the optic the hst is. You also won't lose much money on resale as it's gonna be fully depreciated by now now or less. Their warranty is good too but you likely won't need it with the elite tac line as they are durable well built units. Any of the newer bushnell elite tactical ffp mil mil scopes will be a great choice.
If you can't do that then get an swfa 10x and ammo. The swfa is a perfectly usable scope at distance, tracks great and retains zero. Lot of people started with one. It's not fashionable but function often isn't. The cheaper feature laden scopes give up a lot in terms of durability to hit their price points.
Invest in a quality mounting system. MDT, Nightforce, Badger ordnance, seekins, ARC.. to name a few brands. And a torque screwdriver to ensure its mounted correctly in that system. You'll use this on all your firearms and maybe some other stuff too so it's good to have.
Torque everything more than once as hardware stretches and will loosen over time. Keep an eye on it and retorque as needed, action screws especially. Blue Loctite I can recommend too. On all scope mounting hardware. You want zero movement in your system. Every last variable you can get rid of will help.. You aren't just bolting parts together you are building a system so it all has to work together.
Taking the time to set the rifle up thoroughly will save you a lot of money and time at the range chasing wandering zeros, loose bolts and such. Recheck before each range session for peace of mind.
If your entire shooting system is torqued to the same figure every time, the optic is a quality piece that holds its zero and adjusts accurately and the rifle is fed quality ammunition that is known to be consistent and contain a proven projectile... then the only other real variable is your skill as a shooter.