Rifle Scopes MOA travel on scope

[kyle1974]

Finished setting up my new rifle...

using a standard MOA base with a 100 yard zero, I have only 14 MOA of adjustment "up". I have much more than that "down", which is essentially useless...

I'm guessing shims might be the best route? or since i have so much adjustement down (more than 20), would going to a 20 MOA base be the better solution?

it's a 308 with a zeiss conquest 6.5-20x50....

 

[kwild]

Re: MOA travel on scope

Depending on how much you have left going down I would go with a 20 or 25 moa base.

 

[kyle1974]

Re: MOA travel on scope

I need to look again, but I beleive I have about 31 MOA travel down...I believe this scope has 45 MOA total travel.

another thing is why it's this offcentered? I would have thought it would have been closer to half way....

 

[chadg]

Re: MOA travel on scope

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: kyle1974</div><div class="ubbcode-body">I need to look again, but I beleive I have about 31 MOA travel down...I believe this scope has 45 MOA total travel.

another thing is why it's this offcentered? I would have thought it would have been closer to half way.... </div></div>


Just the nature of the beast friend..............

 

[Lindy]

Re: MOA travel on scope

It actually sounds like you have a slanted base with the base installed backward. What does "standard MOA base" mean?

It should take you about 4 MOA of "up" elevation to get a 100 yard zero.

If you have only 14 MOA of up available after getting a 100 yard zero from a flat base, you better get a 30 MOA base, because 20 won't be enough to get you to 1000 yards.

Don't try shims. That is likely to cause bending your scope tube, and they're likely to come loose from recoil anyway. Get the correct base.

 

[kyle1974]

Re: MOA travel on scope

it's just a one piece short action remington base... can't be on backwards really. by "standard" I meant that it's not a shimmed, 20 MOA or other type base.

I don't need 1000 yards, probably 800 max. I still want the capability to be able to shoot at 100 yards if I need to, and if I put a 30, that may make that difficult..

actually... what I probbaly need to do is get a different scope and put this one back on my .223.

 

[Victor N TN]

Re: MOA travel on scope

Something I try to do every time I swap scopes is to mechanically center the reticle. I take it all the way until it bottoms out. Then I go in the opposite direction counting the clicks. Divide that number by 2 and back it out to the half way point. Then do the same on the other axis. To some people a little distortion may be OK. I had "young eyes" once upon a time too. I read this in a magazine back in the 1960s and I've tried to do it every time I swap. If you're using a standard type mount with a windage adjustment like a Leuopld or Redfield then use the mount to get the windage on the paper, you'll still be closer to centered in the glass.

I know this wasn't exactly on topic. But I thought it might be useful to you.

Good luck.

 

[kyle1974]

Re: MOA travel on scope

I was able to get the windage within about 2 MOA mecahnically set... I'm just not sure how to set the elevation mechanically other than putting on a 20-30 MOA base?

 

[kwild]

Re: MOA travel on scope

I would try to find a 25moa base for it. If you go 30 you may run the chance of not being able zero at 100. I was in the same boat and went with a 20 as I wasnt able to find a 25 moa base for my tikka.

 

[head2h2o]

Re: MOA travel on scope

As others have mentioned, I would try to find a slanted based, say about 25 to 30. With a Conquest 6.5-20x50 and that much MOA slant, you should be able to reach 1000 yds with a 308.