11-18-2018, 11:36 PM
jd,
I do think you are setting yourself an impossible task by choosing scopes that have a small vertical range.
In your shoes I would first look at the ballistic curves for your gun to find out what elevation it takes to get to where you want to shoot. Then look at scopes that will let you do this, with or without a canted base. If you still can't get the elevation you want then a lesser preferred fix is to use the max elevation the elevation adjustment will give you and then add to it the graduations on the reticle to give you that extra range.
By my calculation you need about 14Mils or 50MOA of elevation to be comfortable at where the bullet goes subsonic, around 1,000yds. To see what the scope can give you need to halve the elevation range, so in a 20Mil scope (Vortex) you have half up and half down...10Mils of elevation and 10 Mils of declination. Now you need another 4Mils of elevation to get to 14Mils. If you put a 20MOA (6Mils) angled base that theoretically changes the scope axis to 16Mils up and 4Mils down. That's if the scope axis is exactly half up and half down and that depends on how precise they put it together at the factory. You tend to get what you pay for in scope quality and precision. Theoretically, it should be doable with your Vortex scope and a 20MOA base. But you haven't left much slack in the system for alignment errors and that may be what is happening in your case. The scope's reticle-range may not be exactly aligned centre to the scope's axis/body.
There are scopes out there better suited for your situation with more elevation range.
I do think you are setting yourself an impossible task by choosing scopes that have a small vertical range.
In your shoes I would first look at the ballistic curves for your gun to find out what elevation it takes to get to where you want to shoot. Then look at scopes that will let you do this, with or without a canted base. If you still can't get the elevation you want then a lesser preferred fix is to use the max elevation the elevation adjustment will give you and then add to it the graduations on the reticle to give you that extra range.
By my calculation you need about 14Mils or 50MOA of elevation to be comfortable at where the bullet goes subsonic, around 1,000yds. To see what the scope can give you need to halve the elevation range, so in a 20Mil scope (Vortex) you have half up and half down...10Mils of elevation and 10 Mils of declination. Now you need another 4Mils of elevation to get to 14Mils. If you put a 20MOA (6Mils) angled base that theoretically changes the scope axis to 16Mils up and 4Mils down. That's if the scope axis is exactly half up and half down and that depends on how precise they put it together at the factory. You tend to get what you pay for in scope quality and precision. Theoretically, it should be doable with your Vortex scope and a 20MOA base. But you haven't left much slack in the system for alignment errors and that may be what is happening in your case. The scope's reticle-range may not be exactly aligned centre to the scope's axis/body.
There are scopes out there better suited for your situation with more elevation range.