Need help adjusting front and rear sights for zero on No4 MK1/2

[CINDERS]

BD and Para are right and it is what I have done for all my 303's for what ever load I want to use look up the little blue book and adjust accordingly despite the indicated range on the ladder on my No.4's or rear sight on the Mk III's just means some range time on a decent range with various loads you may use.

You cannot speculate or guestimate the trajectory of your reloads because we do not have access to MK VII cordite or the projies with the correct BC to match so hence forth all SMLES mine included the sight will be close with some loads/bullet weights like the SMK 174 and the Highland 174.
And if you mix and match for different matches like I do light loads for 100yd when standing and cranked up when we get back to 600M as there is no power factor involved I use Hornady 150gns up to 300M as they are .312" better obturation with the larger Dia and being a SPFB where as the SMK are .311 or I have seen some at .310.5.
We can shoot from less than 5yds ~ 1000yds but have yet to try a 303 at the 1000yd distance, like I said have fun.