I have an older Gen 1 Delta Stryker, they've made two upgrades since then, so be a bit careful on the age of any reviews you may read concerning parallax or turrets. That said, there are quite a few mfgrs building on the LOW and Japan Optics chassis in the 5-25 and 4.5-30 zone at the 1800-2500.00 mark and a lot of mfgrs bringing out new scopes in that arena, or adding reticles and improvements, and those are likely the best bang for the buck You have Apex, Athlon, Delta, Trijicon, Bushnell, Zeiss, some Vortex, NIghtforce, Tract, some Sightron. Couple more I am fuzzy on the names on. Tract puts German glass in the LOW chassis.