Put a leupold 2.5-8 in Talley detachable (but kept the screw) and 15 shots in the scope had slipped quite a bit.

Not sure if operator error - tightened to 17 inch lbs, no loctite and no pieces of bicycle tube between ring and scope.

Suggestions?

Thanks

Liquid plumbers tape to the inside of the rings.

Here is a BRNO ZKK 602 with Leupold 2.5-8x36mm scope in standard factory/OEM CZ 550 Magnum rings, "Medium" height, they work:





The best set of rings for that: Standard CZ 550 Magnum rings.

I have busted-to-pieces two sets of Talley QD rings on BRNO ZKK 602 and CZ 550 Magnum rifles.

The main mounting screw on the standard factory CZ rings can be torqued to 65 in-lbs. That will strip a Talley loose for sure.

I like to replace the main mounting screws with metric automotive socket-head screws.
Then a hex key in your pocket serves as the QD-QD lever.

For hard kickers: I use RTV/automotive silicone adhesive smeared inside the lower ring half only.
Clear or black colored, a little dab will do.
Ross Seyfried recommended the 3M Liquid Electrician's Tape, the brush-on, rubbery coating/insulation.

After tightening and the tiny excess of silicone squeezes out, you can wait for it to dry and peel it off.
Or you can clean it up while it is wet if you like messing around, use some Gun Scrubber type solvent, paper towels and Q-tips.
That also works after hardening when you want to remove any traces of the silicone from the rings or scope, what is left after fingernail scraping.

This is a refinement from earlier days of doing top and bottom ring halves. That was overkill,
but it does seal out any moisture or lubricant ever getting between the rings and the scope tube.

Thanks Rip - do you replace the main mounting screws on the Talley's or the CZ factory rings with the metric automotive screws?

Talley's are hopeless.
I will find pics with specs for that CZ main mounting screw, the only one I replace.

Can't seem to find any CZ factory rings for 1" scope in LOW - only medium and high?

There are no "Low" factory/OEM CZ rings. Mediums are pictured here:


Can you tell I like looking at that 10.4 Spiridon Moor rig?

If you use low rings on a BRNO ZKK 602 or a CZ 550 Magnum,
the bolt handle will be blocked by ocular bell, rifle nonfunctional,
unless that ocular bell is as small as the one on the Leupold 2.5X.
I had a set of Warne low rings for the CZ, but they quit making them due to limited applications/market.
I gave my 2.5X Leupold in low Warne rings to a young appy PH in Tanzania, Augustine, who had a CZ .458 Win Mag.
Good scope rig for that, as it was on my 500 Mbogo:





CZ Rings:



Stainless or blued screws available.
Nothing wrong with the factory slot-head screw, but the hex key/Allen wrench fits pocket better than screwdriver:



Ignore the Leupold QD lever on the CZ ring above. That was a joke.
Shown also is the 5mm Allen wrench/hex key, as well as an alternative QD-QD lever for the pocket,
a 5mm hex bit and socket with mini-ratchet, for use on the socket cap screws,
or simply use the 5mm hex key.
The Fat Wrench is an old one, my spare, only graduated to 60 in-lbs. The newer make of same brand is marked to 65 in-lbs:



And the pocket wrench for half-inch nuts on tacticool rings for Picatinny rails:



QD-QD lever installed, ready for Quick Detachment and stowage in pants pocket:



There is nothing stronger, more accurate, and more repeatable than the above.
You may find something cheaper (hard to do), or prettier (matter of opinion only), and you can easily find something more expensive,
but none as good.
I think they are the most beautiful rings available.
Beauty is in the eye of the beholder.
Beauty is as beauty does.
I am struggling for words here ...

There is more than one way to skin a wildcat.
Riflecrank Incurable Permanente

I have a set of these on a 8x68s BRNO 602. I like them.

https://alaskaarmsllc.com/collections/cz-scope-rings

BTW, 10generation, what chambering is you rifle?

quote:

Originally posted by Jgrabow6493:
I have a set of these on a 8x68s BRNO 602. I like them.

https://alaskaarmsllc.com/collections/cz-scope-rings

Should be fine with light recoil like from an 8x68s.
They do offer a low for the CZ.
Check for ocular bell clearance if you dare.

There is more than one way to skin a wildcat.
Riflecrank Incurable Permanente

Its a .375 rip.

just ordered the CZ mediums from midway!

Original Zeiss Jena scope with Brno ZKK 602 Factory mount







Original factory Scope mount for the ZG 47 with original Meopta scope ( fits the ZKK )



Circa late 1970's Lynx ( ex Australia) mounts for the ZKK 602



I have them on all of my Brno's !

I have one of those Zeiss Jena rail-mounted scopes exactly like Alf said this about in 2008:

quote:

Originally posted by ALF:
As to that old Zeiss Jena, well I view them as curiosa only, totally dysfunctional !

I agree!
And all the rest are eclipsed by the latest OEM/CZ factory rings,

quote:

Originally posted by 10generation:
just ordered the CZ mediums from midway!

which 10generation is going to find to be totally functional and with bank-vault-secure holding on his .375.

I have a standard set of low Talleys on my .375 H&H Brno 602. Never have had a problem of any kind..I usually put a thin coat of rubber cement in scope rings so I suspect I did so on the 602..I used lock tight on the action screws.

You can get Rubber cement at any Saddlel Shop. Scope is a 3X Leupold..I tighten all screws with a small handle screw driver as hard as I can..works fine, just keep the handle small so you don't get too much tork..I use Torx screw btw.

Also installation problems exist with Talley if not done properly, in that some folks don't tork up the bottom screws with levers loose then tighten the top screws tight with the levers straight up and in proper order.

With Talleys you have the option of the levers or the heavy screws and the heavy screws won't let a scope move I don't think as you can really tork them up without putting pressure on the rings and scope..

As for a 500 calibers I don't use scopes..

For my use with a big 500 or even a 458 Lott, I prefer a receiver sight or shallow V barrel mounted iron sight. I don't use the big 50s for anything but hunting Buffalo etc. and shots are 35 or 40 yards. Best I recall the longest shot I ever made on DG was a buffalo at 125 to a 150 yards. That also was the only instant kill on a Buffalo with a heart/lung shot and with a 416 Rem.

That said, some folks may use big bores for other types shooting, so can't comment on that.

Warne, only rings I have ever used that will absolutely not mar a scope and hold every time