Continuing what is becoming an extremely fascinating thread.....


Quote Originally Posted by sarf View Post
My Chairgun and I reckon pellet drop at 55yds is going to be around 12" with a full power .177"

Like centrefire at 200 yards?

About 1/2 a degree of downslope required on the scope?
What CF is this?

I have this at - 43.6 inches at 200 yards if -12" at 55yds?


Quote Originally Posted by Adam77K View Post
Yep about that.

Working in metric 'cos numbers are rounder that's 300mm give or take.
High mounted scope 50mm above bore, so vertical displacement sight line to target = 350mm
50m range so horizontal displacement = 50,000 mm
Let angle be x

tan(x)=350/50000
x = atan(0.007) = 0.4 deg (24 MOA)
That's quite a lot. CF rails are available for -20MOA for long range shooting, in the expectation you can't dial in enough adjustment on your scope.

No wonder we had as many problems as we did with the higher mag scopes.

Well, problems with scopes not being able to do the (seemingly) impossible?