Rifle Scopes Zero Compromise Optic update

[Covertnoob5]

So it went to Canada and back without having to go through customs? I'm assuming it was because it was marked as repair and not a purchase, but that is good to know.

Yup that is correct

 

[Moose]

I remember that call,made me very happy.

 

[DetroitRearView]

Just ordered up a 527 for my .338 barrel. Took the 420 on the 300N out to 1150 a few days ago, very impressed!

 

[Moose]

The 4X20 impressed me also.

 

[blbennett1288]

I broke down and got on @CSTactical 's list for a ZCO 527 MPCT2

 

[CSTactical]

I broke down and got on @CSTactical 's list for a ZCO 527 MPCT2

 

[Glassaholic]

I broke down and got on @CSTactical 's list for a ZCO 527 MPCT2

I see you had the dream as well

 

[bodhisafa]

What are the scope ring torque settings recommend for the zco?

I have the spuhr mount and the manual recommends between 15 -25 I believe it’s inch pounds? But it says to defer to scope manufacturer recommendation .....

 

[seansmd]

From the ZCO manual:

 

[MOUNTIC]

Thanks @CSTactical

 

[bodhisafa]

Is rosin required when using the spuhr mount?

 

[blbennett1288]

Thanks @CSTactical

 

[CSTactical]

Thanks @CSTactical

You're very welcome! Have a great weekend and let us know your impressions after you run this ZC527

 

[MarkLeupold]

Is rosin required when using the spuhr mount?

I would use it. Degrease thoroughly at the very least. The ZCO is a heavy scope and I had mine slip in a Spuhr the first time I mounted it.

 

[Threadcutter308]

Thanks @CSTactical

You're not actually going to shoot that and get it dirty, are you ? ?

(It's gorgeous...... )

 

[Threadcutter308]

You're not actually going to shoot that and get it dirty, are you ? ?

(It's gorgeous...... )

Ummm, Richard/Mike.......we gotta talk.....

 

[CSTactical]

Ummm, Richard/Mike.......we gotta talk.....

I'm here another 30 minutes

 

[bodhisafa]

I would use it. Degrease thoroughly at the very least. The ZCO is a heavy scope and I had mine slip in a Spuhr the first time I mounted it.

What is the best degreaser that won’t discolor the spuhr mount?

 

[ND Precision Rifle]

I would use it. Degrease thoroughly at the very least. The ZCO is a heavy scope and I had mine slip in a Spuhr the first time I mounted it.

I've never used such a thing on scope rings. I'm intrigued if it actually works or is necessary. I understand the theory of it. I've used locktite retaining splooge on R700 Actions for the scope rail to the actual action. Helps as a "fake recoil lug' also helps to make a "gasket" when using steel rails.

I'm suprised that you had issues with spuhr mounts. I've had my NF on my TRG-42 for a long time with 0 slippage, but then again it is a lighter scope with 6 scew design holding it in place....

 

[SIlabs]

I would use it. Degrease thoroughly at the very least. The ZCO is a heavy scope and I had mine slip in a Spuhr the first time I mounted it.

I just followed the ZCO instructions that defer to the mount manufacturer....Spuhr,,,,,and had no slip or problem...

 

[koshkin]

I have not tried Spuhr, but I have never had anything slip in Aadmounts.

ILya

 

[Glassaholic]

You're not actually going to shoot that and get it dirty, are you ? ?

(It's gorgeous...... )

I’ve seen him shoot it, but it’s so nice it doesn’t get dirty ?

 

[MarkLeupold]

What is the best degreaser that won’t discolor the spuhr mount?

I just used isopropyl alcohol. It worked well.

I've never used such a thing on scope rings. I'm intrigued if it actually works or is necessary. I understand the theory of it. I've used locktite retaining splooge on R700 Actions for the scope rail to the actual action. Helps as a "fake recoil lug' also helps to make a "gasket" when using steel rails.

I'm suprised that you had issues with spuhr mounts. I've had my NF on my TRG-42 for a long time with 0 slippage, but then again it is a lighter scope with 6 scew design holding it in place....

It was probably operator error. I took it apart and tried again and I haven't had a problem since.

I just followed the ZCO instructions that defer to the mount manufacturer....Spuhr,,,,,and had no slip or problem...

And Spuhr recommends the rosin

 

[ormandj]

I just used isopropyl alcohol. It worked well.



It was probably operator error. I took it apart and tried again and I haven't had a problem since.



And Spuhr recommends the rosin

Isopropyl works great. I also agree regarding use of rosin, it's cheap, easy to find (any store selling sports equipment will have it, Academy or even a Wal-Mart), and easy to use. Helps with grip and also protects the finish. There's really no downside. You don't need it, but why not?

 

[pmarkov]

From the ZCO manual:

There is a mistake in this manual... It should be written 3.39 Nm, not 33.9 Nm

 

[ND Precision Rifle]

I agree with @MTETM about click spacing and mils per turn. My old (45-yo) eyes hate the tiny bit of space between clicks. I almost always have to count...and I have to wear bifocal safety glasses in order to read my turrets.
Never much go past 8-mils on my guns anymore.WWith all these newfangled second-turn indicators found on optics anymore, you'd think 10-mils would suffice.

It's not just a ZCO thing either. Bring back the 5-mil per turn Vortex Razor! ? <\rant>

Solution!

 

[Glassaholic]

Solution!



View attachment 7123911

Hey that's pretty cool, do they have a corrected version for those of us who suffer from presbyopia (can't read things up close)?

 

[earthquake]

Solution!



View attachment 7123911

LoL, I did see that. Think I'll stick with my bifocal safety glasses.

 

[ND Precision Rifle]

LoL, I did see that. Think I'll stick with my bifocal safety glasses.

My old man always complains about not being able to see shit, I'm thinking about getting one for him.

 

[ND Precision Rifle]

How many Mils are you guys getting with just 20 MOA mounts, or are you guys going 20 MOA rail/20moa mount to get 40 MOA?

I run 45 MOA in my .338 and I gets me full 20 Mils on my optic, figuring why not go for broke to get most of that 36mm tube.

 

[Bad_Donkey]

How many Mils are you guys getting with just 20 MOA mounts, or are you guys going 20 MOA rail/20moa mount to get 40 MOA?

I run 45 MOA in my .338 and I gets me full 20 Mils on my optic, figuring why not go for broke to get most of that 36mm tube.

After zeroing my ZCO420 at 100yards with a 20 MOA rail and a Spuhr SP 6001 mount I had 21 mils of elevation left.

 

[MarkLeupold]

How many Mils are you guys getting with just 20 MOA mounts, or are you guys going 20 MOA rail/20moa mount to get 40 MOA?

I run 45 MOA in my .338 and I gets me full 20 Mils on my optic, figuring why not go for broke to get most of that 36mm tube.

I've got 22.8 mils. I'll never use it all, but it's fun to have

 

[ifgator]

Hey guys I just received my 5-25 mpact2 and would like flip up covers. Please don't throw things as its probably been beat to death. I went to tenebraex site and ZCO wasn't listed. Anyone else make good covers???

 

[Glassaholic]

How many Mils are you guys getting with just 20 MOA mounts, or are you guys going 20 MOA rail/20moa mount to get 40 MOA?

I run 45 MOA in my .338 and I gets me full 20 Mils on my optic, figuring why not go for broke to get most of that 36mm tube.

You can figure out how many mils you should get from most scopes by finding out the total elevation of the scope, divide that in half and then add about 3 mils per 10 MOA of cant (it's actually 2.96, but 3 will get you in the ballpark).

Therefore, if you have a scope with 28 mils of travel, divide that in half and you have 14 mils, put on a 20 MOA canted base and you'll now have about 20 mils of total elevation available to you, use a 20 MOA mount on a 20 MOA base and you have a total of about 12 mils of additional travel which would yield about 26 mils of elevation you can dial, but if you dial the full 26 mils you are at the extreme limit of the scope which some have noticed some optical distortion. However, ZCO claims to have resolved that issue with their 36mm tube and optical design, they are supposed to have some of the best optical performance while at the extreme end of the elevation. ZCO also offers 35 mils of total elevation, so given the above formula you divide 35/2 = 17.5 and then add 3mils for every 10 MOA of cant until you get to the limit of the scope which for the ZCO would be almost 60 MOA of cant.

 

[Bad_Donkey]

Hey guys I just received my 5-25 mpact2 and would like flip up covers. Please don't throw things as its probably been beat to death. I went to tenebraex site and ZCO wasn't listed. Anyone else make good covers???

Aadmount has them.

 

[Glassaholic]

Hey guys I just received my 5-25 mpact2 and would like flip up covers. Please don't throw things as its probably been beat to death. I went to tenebraex site and ZCO wasn't listed. Anyone else make good covers???

I highly recommend Aadmount's caps - http://shop.aadmount.com/Flip-Up-Cap-Set-ZCO-ZC527-5-27X56mm-CAPS-ZCO56.htm

I like them better than Tenebraex, but I also like Tenebraex very much

 

[CSTactical]

Hey guys I just received my 5-25 mpact2 and would like flip up covers. Please don't throw things as its probably been beat to death. I went to tenebraex site and ZCO wasn't listed. Anyone else make good covers???

We have the Tenebraex caps back in stock, I'm working on filling the back orders right now and should have some left over

 

[ifgator]

Thank you everyone and dang that was easy

 

[MOUNTIC]

We have the Tenebraex caps back in stock, I'm working on filling the back orders right now and should have some left over

Sweet. Excited to get the caps on these bad boys. Makes me uneasy without them.

 

[ormandj]

On the scope elevation, I've got a 6mil (~20MOA) Spuhr mount + the Impact 737r which has 20MOA. I have no problem with the 100yd zero, and have elevation to spare even out to a mile. I'd definitely go this way in the future - I don't see any downside as the optical clarity doesn't seem to degrade any noticeable amount to my eyes at 100yds. ZCO definitely seemed to nail this aspect.

Aadmount caps for sure. There's photos on my 527 in my post history if you want to pull them up.

 

[MarkLeupold]

I’m seeing a serious lack of photos of scopes on rifles guys.

Just for you

 

[lancetkenyon]

Just mounted up the 4-20 mpct2 from @CSTactical on the 300 PRC. Excited to use this thing finally.

What height rings are those? High 1.26" or Medium 1.1"? I am about to drop the hammer on a 4-20 going on a new build, and like rings, not 1 piece mounts. I like to keep the scopes as low as possible too.

 

[Bertoli888]

@MarkLeupold What kind of add on grip are those in your rifle? I have a Tikka and something like that might work? Thks

 

[MarkLeupold]

@MarkLeupold What kind of add on grip are those in your rifle? I have a Tikka and something like that might work? Thks

So, the base stock is a B&C M40. I drilled some (3) holes in the grip and epoxied in some threaded inserts. I then made the grip out of "oven-bake clay" and formed it how I liked it. Cook it according to directions and it's kinda like a polymer when it comes out. Bolt it on and rock and roll.

I get a lot of questions about it. Kinda unique.

 

[kindabitey]

I’m seeing a serious lack of photos of scopes on rifles guys.

Here's another one for you

 

[Covertnoob5]

I’m seeing a serious lack of photos of scopes on rifles guys.

I suppose all I'm missing for the second one is @Lowlight "Purrdy dang good ammo"

 

[MarkLeupold]

View attachment 7125160View attachment 7125161

You have the Tenebraex flip covers on those, Covert?

 

[Covertnoob5]

You have the Tenebraex flip covers on those, Covert?

Yup! Mile high had them

 

[MarkLeupold]

Yup! Mile high had them

I hadn't seen any on a ZCO yet, they look good! I liked them on my Steiner and it seems like they mount up the same way. Nice and clean

 

[seansmd]

Another pic