anyone make one? Would like to get my scope farther forward. Heavy duty required 30mm

thanks

Am I wrong in thinking extension rings such as the Redfield one I used on my Sako L61R can be used either forward or back? (The mounts were similar to the Leupold STD type.)

The extension ring on my rifle was inverted, to allow a short-barrel scope, but should go the other way if you have a long scope with the turrets in an awkward position.

Yeah got them for my winchesters but as far as I can tell no one makes one for a CZ? The extended eye relief scopes would be nice to get a little farther forward. Especially on a big kicker

this is ugly but will allow you to use any weaver rings.

https://shop.cz-usa.com/Produc...19mm-Dovetail-20-Moa

That base is shown as a 20MOA base. I think that gives a lot of extra elevation for very long range shooting.

Ugly it is. I just got a semi custom Mauser that had something similar and got rid of it fast. I installed a 2 piece set of Warne bases to use with QD rings. The one piece would have worked but it was ugly on a classic looking sporter, and hindered access to loading area.

quote:

Originally posted by richj:
this is ugly but will allow you to use any weaver rings.

https://shop.cz-usa.com/Produc...19mm-Dovetail-20-Moa

I tried one of those.
Quickly concluded that it added too much height to the mounting of a scope,
and it was too weak in attachment, as I just read at your link:

WEAVER ADAPTER RAIL 550 19MM DOVETAIL
NOT COMPATIBLE WITH RIFLES CHAMBERED .375 AND HIGHER (SAFARI MAGNUMS)
HEIGHT - 0.635
20 MOA
TORQUE SPECS - 15 in/lbs.
BLUE LOCTITE RECOMMENDED

Best to just use the two-piece, cross-slot base
and have one of them overhang the ejection port,
at the rear if you want to move the scope forward on the rifle.

Even the likes of Ross Seyfried did this on his "Professional's Rifle" which was a Remington M700 .416 Rem that weighed 7.5# with 24" barrel.
Overhang was at the rear of the ejection port.

8X40 and J-B weld a two-piece, cross-slot set of bases, and you can get the scope pretty low.
And it is as strong as integral bases.
And offers many choices of strong rings of various heights.

You can even find extension rings for the cross-slot/Weaver/Picatinny style bases,
so you do not have to overhang the ejection port at all if you like.
Many flat-based Picatinny rails are out there to be cut into two smaller bases.
Some lower in height than others.

A local Gunsmith will be required, if you have time before taking off on Safari.
Just be careful of Weatherby-eyebrow if you don't have time.

Rip ...

Any outfit that makes bases for the CZ usually has an extension base..Talley probably makes and extension ring for CZ, I know they do for a Brno and that's 16MM dovetail ring...Call Talley and ask..That's a popular rifle, surly someone makes a ring.

Or put just put on a slip on Limbsaver recoil pad. Costs about $25, helps turn that jab into a soft push, increases LOP about 3/4" which should solve your eye relief problem. I use the Leupold 1-5x on my 500 Jeffery and have no issues shooting it with a scope.

Here you go.
You can order them from CZ Czech Republic. I've done it twice, once carried by a Czech friend, and once airmailed to address in USA.


this is a one piece that can handle a short mounting length.


This is the two-piece base-ring.

Both of the above pictures are probably 25mm/1" although there are 30mm base-rings available, too.

Both of the rings above have been used with a Nikon Inline or Nikon Slughunter. They have 5" eye-relief and are GREAT scopes for heavy thumpers. One of those scopes sits on my 500 AccRel Nyati.

I've gotten accustomed to these scopes so I now have them on a couple of 416's, a couple of 338's, a 375 Ruger (with Ruger extension ring), and even a Tikka 270 Win, cuz' it's a great scope. The scopes do require the above rings on a CZ because the mounting space is only 4.73".

416Tanzan,

How do you order directly from Czech Republic? Got a link?

The one-piece base looks like it might have the robust main mounting screws/bolts that are recommended to be torqued to 65 in-lbs.
I can see the rear one, but the front one must be on the other side?

The two-piece bases seem to have the smaller main mounting screws, two in each base?
Looks suspiciously like the other mount that is not recommended for .375 H&H and up,
where torquing to 15 in-lbs and blue LocTite is recommended for smaller-caliber rifles.



Anyway, the weak-spec'ed one above would do fine if J-B Welded and 8x40-screwed to the top of the heaviest kicker possible in a CZ 550 Magnum.
Rip ...

Rip,
As I recall CZ has an outlet in Oklahoma or Utah, somewhere in the US, I ordered a rifle from them a year or two ago..

RIP,

the post in front of mine had the link:
e.g.
http://kozap.cz/zbozi/1197/21-...-magnum-n-suv-2-d-l/

google translate will help if you don't do Czech (which I don't). They will read English if you add questions or comments.
"Please include in your order the required ring diameter (26; 30; 34 or 36 mm) and height (basic 6mm; 9mm; 11mm high)"

The CZ rings are not the "Weaver" rings mentioned in earlier posts above with a recommendation against 375 or heavier caliber. Note the "foot" in the picture in my post above that fits into the CZ side notch on their CZ 550 models.

Wow, never knew there were so many!

EAW Magnum pivot mount - lever lock, 30 mm, Brno ZKK, CZ 550
for only $469.00:

The Weaver/Picatinny-style rail mentioned earlier has the recoil-stop "foot" (though a tiny foot it is) secured by two screws
to be torqued to less than 1/4 of the inch-pounds of the standard CZ OEM ring main mounting screw:



That foot should have been a size 12 instead of size 2!



Above is the left side of it, below is the right side of it:



Best of all, I still like the idea of using a much lower height, 2-piece, cross-slot base overhanging the bridge side of the ejection port.
Screw and glue.

Ross Seyfried had a Talley base stuck way out forward from the bridge so he could get a Leupold 1.5-5x20mm scope well forward:



Nicely low too, bolt handle barely clears the objective bell when bolt is worked:



Rip ...

The Picatinny would probably be too high for a hogback stock, maybe for straight stock, too.

quote:

Originally posted by 416Tanzan:
The Picatinny would probably be too high for a hogback stock, maybe for straight stock, too.

The CZ "device" yes.
Here is my joke based on that.
The S&B scope and 34mm ringsX4 weigh over 3 pounds.
First shot with the "49-bore" .500/.338 Lopwah Magnum would eject the scope from rifle:





There are many, much lower in height, Picatinny/cross-slot bases that could be adapted for the screw & glue installation.
Combine that with some low rings and you can mount a scope lower than with the standard CZ rings, which ain't bad at all.

This gives an idea of how low a Picatinny can go:



And here are some low 30mm rings to fit that low a base:



Two flat-bottomed pieces of Picatinny of the same height, but with one a little longer than the other to form the "extension" would fit a CZ 550 Magnum.
Two 8x40 screws in each base, J-B Weld glue, good as integral.
Better because of the many choices of rings,
including extension rings that cost much less than $469 for the EAW.
But extension rings will not be "low."
Best to go with extension base on one of the two pieces of Picatinny used for the two-piece.
Then choose the lowest rings that will function properly, to clear the ocular bell when the bolt is worked, and to clear the objective bell from barrel contact.

Rip ...

It occurs to me that I need to be able to put a Nikon SlugHunter onto a CZ 550 Magnum, .458 WinLott.
This will also provide material to post on the "458 winchester magnum" never-ending thread.
My "custom" 2-piece, cross-slot, extension bases will be the ultimate in utility, strength, durability, low height, and low price in dollars.
Low height can only go so low or the bolt will not work.






Torque the 1/2" nuts 65 to 100 in-lbs and the scope will not eject from the "custom" extension bases on a CZ:



Rip ...

This is cheaper and easier than having German Claw mounts machined for your rifle. It is the method used on this BBK-02, it would be the same for a CZ 550 Magnum:
8x40 screws and epoxy.









It stood up to 500-grainers at near 2700 fps from this 470 Mbogo.

It is as low as you can go and still work the bolt.

All that is needed is to select/fit a longer piece for the extension base of a 2-piece "custom" set.
I am still looking. Here are a few pieces on hand, all with flat bottoms that could be attached to a CZ 550 Magnum:



Rip ...

RIP, this is good work. I am very interested in the results with the Slughunter, because I use a Nikon Inline in 416Rigby in CZ550 and will probably want the same in a 416 Ruger.

So how low can we go in CZ? My current Ruger Hawkeyes have the Ruger extension rings. The bolt clears the Nikon Online, but the Objective is so close to the 500 AccRelNyati barrel that the scope cover does not slide on. So the Rugers are already low enough and Ruger rings are pretty solid.

Show us how the piccatiny is done.

For example, how do you get the bases epoxied on and exactly level? Or is there no play to worry about? Can you break it down for someone working without a tool shop?

Those look nice..I belive it would be easy to make a set of them out of steel, maybe even buid a square bridge tigged on or screwed on or both..I recently had Dennis Olso sqare bridge a Brno 22F 8x60 that at one time had claw mounts..He filled the slots and made a beautifull set of wrap around Talleys..Jack Belk did the same on my pre 64 fwt. mod. 70 30-06 and they are beautiful..

Dennis also did a trigger job on the double set triggers on the Brno, the front set trigger is about 3.5 to 4 pounds and the set rear is about 1.5 lbs..both are excellent and you can't bump them off...nice work. While he was at it he cut the bolt off and tigged it back a quarter of an inch, now it clears any scope and you can't tell he moved the bolt down..again nice work.

Thanks, 416Tanzan and Atkinson.
All the bases I am trying are steel, stainless or chromoly.
I shall continue this on the never-ending "458 winchester magnum" thread as this will add a lot of replies there, for THE MISSION.
Afterall, this thread is about extension rings for the CZ, not extension bases. Highjack off.
I gotta put a Nikon SlugHunter, and any other scope I want, whatever distance from my eyebrow I want, on a CZ 550 Magnum .458 Win.

The extension rings are usually too high.
The ones that are not awfully high, look goofy like made on a base extension, that still has to be attached to a base, adding height.

Might as well just make a goofy-looking base extension and put a truly low-as-possible ring on it.
The extra height of the screwed&glued base on the CZ is compensated by the low height of the rings that can be used.
Stay as low as possible that way.


Rip ...

Good stuff. I’d take the extension bases like the Winchester. Height is an issue with Swarovski very tight fit with bolt handle.

Alaska arms worked great got the scope as far forward as possible. Never hit head but one time on hunt was sloppy and red release lever on butler creek flip up cut my nose...that was too close for comfort. Another 1/2” forwards would be nice...