Nightforce NXS 12-42x56. Bought 2nd hand for £1000 already re-aparallaxed with 50@ adapter. HUGE gaps between longest distances, but runs out of parallax at 27 yds (down to about 24 yds with mag wound down), and waits until just under 17 yds to come back in on the CFA. Closest distance at full mag is 11yds. NP-1RR ret.
Leupold V111 6.5-20 Prem Ret boosted to 18-40, bought 2nd hand for £325. Needs a CFA for less than 25yds and has a dead spot down to 17.5 yds. Multi-line ret means you can choose between dialing and aiming off. The ret is in the 1st FP, so the aim points stay correct no matter what the mag is.
Bushnell Elite 4200 8-32x44. 2nd hand £250. Cracking optics, scope would be better for a mil-dot reticle for extra windage marks. 15/15 ret
Bushnell Elite 6500 4.5-30x50. 2nd hand for £485. Needs a CFA below 25yds but ony has about 3 yd dead spot. Cracking optics, and surprising large gaps for such a (realtively) small mag.