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Leupold Mark 4 M3 ?

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Unread 03-30-2008, 06:41 PM
Silver Member
Join Date: Dec 2001
Location: bluefield,va,us
Posts: 337
30 MOA base

On my 50 BMG would not even let me get close to a 100 yard zero,

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Unread 04-01-2008, 06:26 AM
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Join Date: Aug 2003
Location: NC, oceanfront
Posts: 3,977
Originally Posted by CatShooter View Post
I own three of the MK4-M3 scopes, and it is true that they have a taper built in.

Standard "0" taper bases are required for the MK4-M3. or you may not be able to zero it at 100/200yds.
I asked Leupold about this:
There are rumors out there that Mk4 M3 scopes require biased/specific bases. Is this true?
Are Mk4 M3 scopes different in some manner from any of the other Mk4 scopes?

The reply:
The Mark 4 M3 scopes are just like the other mark 4 scopes as far as application is concerned. The only difference is that the elevation adjustment moves point of impact one full MOA per click.
John Snodgrass
Leupold and Stevens
Sales Service Representative

So I am still confused about this 'built in taper'...
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Unread 04-04-2008, 09:59 PM
Join Date: Sep 2007
Posts: 181
is this also true of the MK4 M1 ??
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Unread 04-05-2008, 12:55 PM
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Join Date: Jan 2008
Location: half way between Buffalo,NY and Rochester,NY
Posts: 60
Mikecr,lets put it this way. Forget about the taper in the scope and look at it this way, the Mark4 M3 with let say it has 50 moa total travel in the elevation turent, then for each click you go up is 1moa. The Mark4 M1 has 1/4 moa for each click.So if you want to go up 2" with the Mark4 M1 it take 8 clicks, where the Mark4 M3 it take only 2 clicks.This way in a shoot condision (say you have to shoot fast) you only have to move 2 clicks and not 8 click.That and with out looking it is easer to turn 2 clicks than 8 clicks for the same amount.Hope this helps some. Tim
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Unread 04-05-2008, 08:40 PM
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Join Date: Aug 2003
Location: NC, oceanfront
Posts: 3,977
Again(and still) my question...What built-in taper?

I've never heard of this, and Leupold says it's not true.

Thats what I'm questioning.

Last edited by Mikecr; 04-05-2008 at 10:40 PM.
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Unread 04-10-2008, 03:55 PM
Bronze Member
Join Date: Jan 2008
Posts: 83
I have 3 ultra mark 4's. On the m3 I use a 20 minute tapered base and can zero at 100. I also had leuplod custom shop make make a custom bdc dial with my load at my elevation. It's scarry accurate. it's on my 308 and goes out to 1300 plus yards. Great combo and very fast
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Unread 12-24-2015, 10:54 AM
Junior Member
Join Date: Jul 2013
Posts: 18
Re: Leupold Mark 4 M3 ?

Does it have a taper ?
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