My best scope in low light is the Tract Toric ELR, second is probably a tie between the Leupold Mk3 LRT 3-10, Mk4 LRT 4-12 and Vortex LHT- 3-15. The Vortex reticle I have does disappear completely for my eyes at low power in low light below 10+ power, The Mk3 has marine style mill dots and works great until you can't see at all, Mk4 TMR does really well too and the Tract is illuminated so no issue at there.