Suggestions on a 30 Moa base?

Buzzballer

Buzzballer

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Hey guys,

Can any one suggest a decent base with a 30 Moa cant? Iv run in to a problem with my current rig. I'm running a Remington sps tactical (hs stock, 20" .308 barrel 1 in 12") with a new Viper PST 6-24 FFP Moa mounted on ATRS Rings.

The problem I'm running in to is, with the Viper having 4" of eye relief I cannot get a far enough forward mounting position. Ill post a picture but it was before I had it adjusted for relief, the front ring is now against the center position of the optics with the turrets on it, and the rear ring is almost against the flair of the ocular lense (rear lense). I need about 1/8" more forward mounting position. So I think I need to find a 1913 picatinny base that allows my rings to mount one or two spots further forward infront of the receiver.

With my current 20 moa base, i seem to only have 24 minutes of adjustment above my 100m zero and based on my isnipe calculations on my 155 amax/46gr varget which seems to only allow me to get out to 700meters.

Any thoughts? Oh and the sunshades not on it now, because yes it's massive and looks ridiculous.

CEC7FADA-099E-4ACD-9A18-DCA928C05BAB-3700-00000319235661FC_zps7b9ffacd.jpg
 
hummmm
your problem has nothing to do with the mounting system
if you cannot get proper eye releif when you sholder your fifle, your stock is too short. just fit a but spacer
a 30moa rail, will only allow you to zero your scope at farther distance
 
I thought about adding a but spacer... ( spacer behind the recoil pad) how ever I like the length of pull of the rifle right now and the HS precession stock has a glued on pad. Which would require modification to be done.

I don't understand why a base with more cant (30 moa) would only allow me to zero my optics at further distance? To my understanding wouldn't it place the scope on more of a downward angle allowing me to lower my 100m zero in the travel of the turrets and this giving me more vertical travel left for my come ups?
 
To get proper eye relief with a correct lop the scope base really needs to hang past the front of the action, a point that most base makers seem to miss.

About your 24 min issue, this IS due to the mounting system and has nothing to do with eye relief.

You say you have 24 min of up, how much down do you have to be sure it's not you scope. Perhaps your 20 min base is not really 20 min because of the way the base and/or action were made. You could add some Burris rings which can give you up to another 20 min. By the way, put the mirage tube back on, the way it shoots is WAY more important than the way it looks! A scope has the most travel when in the centre of its adjustments so ideally this is at long range where you need the most windage as well. The only catch is having enough adjustment able to go down to short range but even if you loose windage here you are closer and don't need as much. Therefore if you can't get low enough and your scope specs should have enough adjustment it means you have too much tilt on the base. For 308/155 you need about 35 min up from 300m to get to 900m.
 
Thanks for the info guys, to give some more information.

I have exactly 24 Moa of adjustment up, of a total of 65 moa available on the optics. The bottom 40 moa have been taken up with spacers for the zero stop. This is for a 100m zero once again.

C76F0145-B099-4DB0-AB7D-9C72336F05C0-6231-000005C056039D4B_zps80910316.jpg


I don't know what the base is as it came with the rifle when I picked it up from the original owner. But it appears to have a can't forward on it? But this picture shows the positioning on the base.

86977DFE-2C2C-4F01-B898-1AFD9EB4F267-6231-000005C04D2E6507_zps9ee1d9fa.jpg


I have over 12 moa of adjustment both left and right for windage, the optics seems pretty centered. do you think a longer rail with more moa is the right way to fix this problem?

E7D18F28-1427-41B0-8151-A803A1496692-6231-000005C044E7E5E3_zps2a8cbf22.jpg
 
here is the picatinny you actually want. see in the picture (as Ian has stated) the rail goes 1-2inches beyond the receiver. this will give you the proper eye relief that you are looking for....IF the stock in its present configuration fits properly for you. this rail is ideally designed for prone shooting.

TPS_4536.jpg
want.
 
I hate to ask a stupid question, but are you sure base is installed thin side forward? Without the 20 moa the base should be giving you, you'd only have 4 moa of up travel.
 
That's what I was thinking, but judge for your self? The picture is above. It seems to be on with the thicker side to the rear. Is there any way to tell if it actually is a 20moa base on the rifle currently? Does any one have the measurements for them?

And yes Trevor that is exactly the type of rail I'm looking for. Just have to find a decent priced once, ATRS, nightforce, seekins or some thing like that.
 
I don't know if you can see the thickness difference by eyes alone. I'll check with my 20 moa rail when I get home from work. Shooter, you say it looks 0moa, do you have a 20 rail that you can tell the difference with?
 
is the rear of the receiver on a rem not smaller than the front? I don't have one handy to measure, but I thinkin it is if so the rear of the mount should be thicker for a flat 0 moa. that looks pretty flat to me from the pic. just remove the spacers from your scope, get the correct base, and shoot it
 
Camaroguy said:
I don't know if you can see the thickness difference by eyes alone. I'll check with my 20 moa rail when I get home from work. Shooter, you say it looks 0moa, do you have a 20 rail that you can tell the difference with?
Click to expand...

I do have a picture of mine. No way to post it here though. Could send you the picture, not that it helps anyone else here though.

Most rails will say on the bottom how many MOA they have.

By looking at the scope to barrel relationship, it sure looks flat to me.
 
I will see Buzzballer this afternoon and we can sort this out. I have a 20 MOA base (Warne Tactical) on my .223 M700 mounted in the LSS MDT stock. We can compare. And I also found an EGW 30 MOA base at Brownells:

https://w ww.brownells.com

Product: 296-000- 151WB

We got yer backs!

Cheers,
Barney
 
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