Originally Posted by 4xforfun
Firguring scope height is simple math. Start with a disasembled gun/scope/rings/basses.
First....find the diameter of your action.....ie Rem 700 is 1.35"...divide that by 2 = .68"
Second..... figure out the diameter of your main tube on your scope and divide it by two...1" tube = .5 ....30mm tube (1.18" divide by two) =.59"
Third, measure how tall your base/ring combo is from where it mates to the reciever to the BOTTOM of the rings where the scope tube sits. lets say it is .75"
now total up your figures...1/2 dimater of action + 1/2 the diameter of the scope tube + ring/base height............ (.68 + .59 [30mm] + .75 = 2.02" scope height.
It really doesn't matter which base you measure if your rings/bases are tapered unless you are ULTRA ANAL!!! If you are, then measure both of them and divide by two the get your ring/base height.
And to the guy who said the the bullet drop is different (317.1" vs 319.1") based on scope height...HOGWASH.....bullet drop is bullet drop is bullet drop. The bullet leaves the tube and drops xxx.xxx.....the bullet does not know weather there is a scope on the gun. Now, IMPACT POINTS will be different because you are sending the bullet out on a different trajectory.
Read this post...read it very carfully... Paragraph five......." now total up your figures............= 2.02 scope height".... It came from THIS thread. This is also the thread in which you pulled my quote...post # 21. I may well have used differnt numbers for the ring/base height on a differnt thread..I don't know, because you didn't link there origonaly. I simply used the numbers FROM THIS POST, WHICH YOU USED AS A QUOTE.
If I use1" ring/base height then the 2.27 inch number is correct.
As far as measuring rings bases....pretty sure they need to be disasembled from the reciever to get any kind of accurate measurment.
BUT...as I have said all along.....It really dosn't matter much at all. If you are off by 1/4 inch with your scope height measurement ..say 2.15 vs 2.40...with a 300 yard zero........ you are about 3/4 of an inch off.....that is less than one tenth MOA. at 1000 yards.
Think about that for a bit!!!