I've got one of these Nikon's with a SuperSub BDC for 300 Black Out.  It's fantastic glass for the money.  Unfortunately, disco'd a few years ago apparently gave in to the woke cancel-culture crowd getting completely out of the rifle scope business.  I've read the 300BLK's trajectory is very similar to the 762x39 and was trying it my SKS-D.  If I zero at 100 I can hit 200 on the 1st hash mark down but am totally lost at 300 and beyond. As most know the 762x39 sprays pretty large groups at 200, so, to get an accurate average group for zero’ing is not a great prospect.   I read in the instruction manual that it should be zero’d wi 300 BLK at 200 yds.  Their ballistics website is long gone.  www.nikonhunting.com/SpotOn .  Is it possible to use this scope/BDC reticle with 762x39?