Rifle Scopes USO Turret Options

DP425

DP425

I’d rather be sleeping
Full Member
Minuteman
Feb 28, 2009
3,221
65
MI
#1
What style do you prefer and why?

SN-4S:
US #1 5/8 MOA Zeroing
US #1 5/8 MOA Slimline
(what the hell is the difference- pictures don't load for me on USO website)

SN-3:
EREK
US #1
US #1 M40 Style
US #3
US #3 M40 Style


The slimline and non-M40 turrets allow the use of turret covers; a nice option, although not something I feel is a requirement.

Alright, lets hear your preference USO owners/users (you're helping me spec out my optics)!
 
#3
Re: USO Turret Options

My SN-3 has an EREK for the elevation and a US#1 for the windage. It all works well but i think a US#3 is better suited for the windage because is has five mils per half revolution instead of 2.5 like the #1. The rifle is a 6.5mm so i have only once had to go past the half rev point on my windage but if I was shooting a .308, i'd be there much more often.
 
#4
Re: USO Turret Options

Okay... I have no idea what a "windage stop" is (I get an elevation stop, but windage?)... Just noticed it's offered on the #3 windage. No "stops" offered on elevation. Does the Erek offer an elevation stop?
 
#5
Re: USO Turret Options

Windage stop - It means you cannot turn the windage knob past about 350 total degrees - in other words, there is no way you can get off a turn on your windage. You zero the knob in the middle of its 350 degrees of travel, then have 175 degrees of travel left and 175 degrees of travel right from that center.

The USO #3 tenth mil-radian knob gives you about 6 mils of windage in either direction.

Regarding the #1 M40 versus standard M1, the #1 turret assembly, when running the M40 knob, cannot have the cover placed over it. The threads for the cover are still on the turret, so if you decide you'd like to have a covered knob, you can remote the M40 knob and replace it with a standard #1 knob which the cover will go right over. The #1 gives you the option of the scalloped or standard (and coverable) #1 knob in one turret.

The #3 does not have threads at the turret for a cover, therefore with neither the standard #3 or the M40-style #3 you cannot cover a #3. Again, the knob can be changed from standard #3 to M40-style #3 with just an allen wrench.

Elevation stop - The standard EREK knob can be easily adjusted so that your elevation zero is set with the knob bottomed out. Basically just follow the normal zeroing procedure, then when done, put your center screw allen wrench in, hold it from moving, and turn the EREK knob clockwise until it bottoms. Now loosen your two small screws, move the marks on the knob to "0", and you are done.

What people prefer and why? Use the search function.
 
#6
Re: USO Turret Options

Cpl snafu and _9H...

Thanks for the outstanding explanations! Really, that is about all I need! Means I'm going to be looking at M3 windage stop knobs and trying for an EREK; We'll see what I'm able to afford!
 
#7
Re: USO Turret Options

Hard to go wrong with the EREK and #3 with stop. I call it the "neverlost" configuration. Having seen many people get lost on their knobs with Lupy M1s, both windage and elevation, you could not ask for a more contrasting system in this regard by going with the EREK and #3 with stop.

BTW the #1 has 48 clicks per rev, not 2.5 mils, so the whole idea of knowing where you are gets kinda funky with the #1 in comparison to some other options.

That said, I've found after 5 years with the USOs and having ordered many configs I've settled on a covered windage knob with EREK and just hold for wind. The Slimline #1 is a nice thing to consider, though not a standard offering, with the bigger scopes if you plan on a #1. It reduces the profile of the scope quite a bit.
 
#8
Re: USO Turret Options

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: _9H</div><div class="ubbcode-body">Hard to go wrong with the EREK and #3 with stop. I call it the "neverlost" configuration. Having seen many people get lost on their knobs with Lupy M1s, both windage and elevation, you could not ask for a more contrasting system in this regard by going with the EREK and #3 with stop. </div></div>

Yeah, its a great setup. I have a MILMIL TPAL with the EREK and #3 with Stop. You can't ever go to far or not find your way back to zero.
 
#9
Re: USO Turret Options

I chose the US #3 M40 style. I considered the Erek but dismissed it for a couple of reasons. To get the 44 moa per revolution you had to go 1/2moa clicks which i didn't want. Second in the 1/4 moa version it offers 22 moa per revolution which is really good but, the Erek upgrade is $175, where as the M40 #3 is only $65. Take a look at the picture. The M40 allows 26 moa per revolution (more than Erek) and is smaller than the Erek knob. I felt i was getting more for my money with the #3. Plus i really like the way the knob is labelled with two levels totalling 52 moa. With this setup on my 6.5 WSM i can get to 1,000yds with less than one rotation and 1,575yds with two full rotations.

USM403.jpg
 
#12
Re: USO Turret Options

I like Erek for mils, and #3 for mils, moa and wind.

The odd numbering of the USO turrets is the only tiny gripe I have with their scopes.

I <span style="font-style: italic">really</span> wish they numbered their .1 mil #3 turrets with a double row like MuleHunter's picture!

Luckily mine is on my AR15 and it probably won't be going to a distance where I'll need to know more than 10 mils, but it'd be nice to have-the ST10 may go on my 7-08 one of these days........
 
#13
Re: USO Turret Options

The new EREK is their baby EREK knob, I don't know too much details on it but it was discussed in another recent thread. If you email or call one of the USO guys (Jeff or Arnold or John III) they'll be able to tell you. It is not on the catalog yet because it is not release for sale, yet.

My new one will have the 110 click 11 mil per rev. EREK with Milestone for elevation (heavier clicks every full mil). Can't wait.
 
#14
Re: USO Turret Options

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SoCalPete</div><div class="ubbcode-body">The new EREK is their baby EREK knob, I don't know too much details on it but it was discussed in another recent thread. If you email or call one of the USO guys (Jeff or Arnold or John III) they'll be able to tell you. It is not on the catalog yet because it is not release for sale, yet.

My new one will have the 110 click 11 mil per rev. EREK with Milestone for elevation (heavier clicks every full mil). Can't wait. </div></div>

It is going to be a while before I place an order but the Milestone EREK sounds like what I want. I need to visit the USO shop one of these days.
 
#15
Re: USO Turret Options

I only wish I had the money to order a new USO whenever I learn of another "option" they are offering...
laugh.gif


Just a few more weeks, I have always thought about that heavy detent click option on other scopes and hoping USO offered it, and now they do.
 
#16
Re: USO Turret Options

The milestone would be great.


<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SoCalPete</div><div class="ubbcode-body"> I have always thought about that heavy detent click option on other scopes and hoping USO offered it, and now they do. </div></div>

'bout time, considering they have the patent on the MTC!
 
#18
Re: USO Turret Options

I have not handled a scope with better turrets and turret options than a USO. When used with the proper base and set up properly, its really hard to beat an EREK.

The "Milestone," what little I've heard about it, sounds like another great turret option. I look forward to seeing one in person. Are there any pictures out there?
 
#19
Re: USO Turret Options

as far as I have heard the Milestone or MTC EREK looks like any other EREK out there; the difference is in the clicks every full mil.

I'm thinking about running to USO during lunch next week so I can feel one.
 
#20
Re: USO Turret Options

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: _9H</div><div class="ubbcode-body">
BTW the #1 has 48 clicks per rev, not 2.5 mils, so the whole idea of knowing where you are gets kinda funky with the #1 in comparison to some other options.

</div></div>

I was comparing the half rev mils of the US#1 and the #3(actually 2.4), since they are marked for left and right.
 
#21
Re: USO Turret Options

I think S'bikers PSR USO prototype SN-3 has the new Milestone EREK with 110 clicks/turn. He can probably tell you about the feel of the clicks, if he still has it.
 
#23
Re: USO Turret Options

Some news/updates for you guys;

Baby EREK= U.S.#4, this has all the same features as the EREK, but in a smaller diameter.

U.S.#3 knobs will be offered in a 100 clikc version for tose of you that want even clicks. This should be released in about 6 weeks when the new broach tooling is completed.

EREK and EREK Milestone now available with 110 clicks.

More to come......
John III
 
#26
Re: USO Turret Options

John, can you tell us what the upgrade option of the baby EREK / US #4 will cost? Or the 100 click #3?
 
#32
Re: USO Turret Options

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: USMCj</div><div class="ubbcode-body">Can the milestone be retrofitted to existing scopes? </div></div>

Only if your EREK has the tall style turret.
 
#33
Re: USO Turret Options

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DP425</div><div class="ubbcode-body">What style do you prefer and why?

SN-4S:
US #1 5/8 MOA Zeroing
US #1 5/8 MOA Slimline

</div></div>

I went with #1's on my SN4S after having another SN4S with M40 knobs I gave a bit of a beat down in OEF VII. My original SN4(OEF VII vet) was requested to be sent back for addition to the collection of veteren deployed scopes.
The issue I had 'in theater' was the extremely fine dust getting into the bottom of the M40 knobs. While it did not get into the works, it did get into the small sopaces and cause friction in the knob movement. The #1 caps stop this cold. If the Circle Chevron reticle is chosen, it has great use on any Perimeter Defense/CQB rifle or carbine. If the JPJ1 reticle is used, it flat rocks with M855/SS109 loads(62gr equivelant) in the AR or other 16" .223/5.56x45 platforms.
I also chose 1/2MOA clicks on my knobs because they worked better for ME. I just see 1/2MOA as being double 1/4MOA. Much easier to manipulate and adjust. 5/8MOA? Too much math for me.

I prefer the M40 knobs, love their easier manipulation, and also think they have a certain 'cool factor', I just prefer covered knobs for dusty places. I suppose if I had more cleaning supplies and more time to dedicate to cleaning when I was there I wouldn't have had any issue, but trying to find pipe cleaners or q-tips was a real bitch. Funny thing; I have boxes of those now. Just never want to be without again so I think I overcompensated....kinda like my 300 coffee filters that I brought home the other day. Panty 6 just looked at me adn went,"A year's supply? Afraid you were going to run out or something?"
grin.gif
 
#34
Re: USO Turret Options

Switchblade, good information there! I already factored in knob covers! But i'll have to look into getting the knobs in .5 moa or .1 mil. I can made due with 5/8 moa but it would be better to just get an even 1/2 or .1mil set-up.
 
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