Rifle Scopes Which AI mount for S&B 3-12 DT

[valmet76]

I have an AI AE with picatinny rail.

I just got a S&B 3-12 DT USMC model for it off this board. (thanks ohiofarmer!)

Which mount should I be looking for? 18MOA or 28MOA?

 

[Trigger Monkey]

Re: Which AI mount for S&B 3-12 DT

I'd get the 28 MOA mount.

 

[BasraBoy]

Re: Which AI mount for S&B 3-12 DT

Definitely the 28.

I have the 28 on my AW with 3-12x50 PMII - it's GTG at everything from 100 out to 1000

 

[Matt in Virginia]

Re: Which AI mount for S&B 3-12 DT

fwiw,
Concur.

Regards, Matt Garrett
757-581-6270

 

[valmet76]

Re: Which AI mount for S&B 3-12 DT

Thank you gentlemen.

 

[blurry6]

Re: Which AI mount for S&B 3-12 DT

DAMN! That's a pretty slick setup! I wish you were over here in Western WA so I could check it out! Not sure about which mount to get - I guess it would be a function of how much travel the S&B has, or lack thereof. My initial thought would be for a .308 (assuming this is the caliber) that more-is-more and the 28MOA would be the way to go, but I don't know for sure. You came to the right place for advice that's for sure. Have fun with that! I'm sure you will

Ryan

 

[BasraBoy]

Re: Which AI mount for S&B 3-12 DT

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: blurry6</div><div class="ubbcode-body">Not sure about which mount to get - I guess it would be a function of how much travel the S&B has, or lack thereof.</div></div>

PMII 3-12x50 with double turn turret has 220 1/4MOA clicks.

My AW zero'd at 100yds uses 48 clicks out to 600yds on a 28 base on FGMM 168SMK...

I don't think you'll run out of elevation.

 

[Lindy]

Re: Which AI mount for S&B 3-12 DT

That depends how far the shooter intends to shoot.

If a scope is perfectly built, with equal amounts of up and down reticle travel, one can assume that half the reticle travel is available as "up" elevation.

But one must subtract off that "up" elevation the amount of travel it takes to achieve the desired zero.

If one decides on a 100-yard zero, compensation for the scope height above bore and the drop to 100 yards will require somewhere in the vicinity of 4 MOA.

So, if the scope you mentioned actually has 55 MOA of travel, that means only about 27 of it is available as up elevation on a flat base. Subtract off the 4 which is necessary to achieve a 100 yard zero, and that doesn't leave enough to get a .308 to 1000 yards.

And that's why the necessity of an inclined base.

Some S&B scopes, like the 5-25X56, have enough reticle travel not to require an inclined base. Many of them do require an inclined base for practical use.

 

[BasraBoy]

Re: Which AI mount for S&B 3-12 DT

Thanks Lindy...that's why I got the 28' base.

It also happens to be the one Ai recommend for the Aw in .308.