UM Tikka rings are not recommended for cartridges larger than 7mm PRC?

[Cdnance]

Why is this? Can they not handle the recoil?
Is it better to use a pic rail and different rings?

Anyone with personal experience using UM Tikka rings on a 300 Win Mag or 300 PRC?

 

[HuntHarder]

@Unknown Munitions ? Have you had ring failures with higher recoiling rounds?

 

[Marbles]

Interesting, is that new? I don't remember seeing that previously.

When I pulled the UM rings off my 243 the thread in recoil pin was slightly bent. Still worked fine, so I didn't think that much of it. So, perhaps slipping is an issue, particularly with the thin threaded recoil pins.

 

[Thejet]

Interesting, is that new? I don't remember seeing that previously.

When I pulled the UM rings off my 243 the thread in recoil pin was slightly bent. Still worked fine, so I didn't think that much of it. So, perhaps slipping is an issue, particularly with the thin threaded recoil pins.

I had this same thing on a 243, mine was more bent than slight tho.

 

[Marbles]

I had this same thing on a 243, mine was more bent than slight tho.

Yeah, slight for me is I didn't notice right away, but was very obvious when I started removing the pin, more than 3 degrees, but less than 8 degrees would be my estimation.

My guess is it bent until the top of the of the pin bound against the forward wall of the slot in the ring base and the base against the bottom, then could only go further if the pin sheard.

My guess is it would hold fine like that, but those pins should be considered single use.

 

[TNKnoxville]

Just noticed this. Took them off my 300 win mag and put on a pic rail and Seekens rings.

 

[DisplacedHusky]

I’m not loving this thread, especially hearing about bending on a .243. I have a set on a lightweight 6.5PRC.

 

[TNKnoxville]

I have them on a 6.5 cm and 6.5 prc Tikka Lites. Took them off and I didn't see any bent pins.

 

[lintond]

Why is this? Can they not handle the recoil?
Is it better to use a pic rail and different rings?

Anyone with personal experience using UM Tikka rings on a 300 Win Mag or 300 PRC?

Where do you see this limit posted? I just checked the website and didn’t see it.


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[nm.otter]

When I pulled the UM rings off my 243 the thread in recoil pin was slightly bent. Still worked fine, so I didn't think that much of it. So, perhaps slipping is an issue, particularly with the thin threaded recoil pins.

Intriguing -- must be some serious force involved.

Weight of scope, weight of rifle, height of rings?

 

[waspocrew]

Where do you see this limit posted? I just checked the website and didn’t see it.


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It's right there on the webpage.

 

[lintond]

It's right there on the webpage.

View attachment 959980

Ha! My wife would be proud! Frequently don’t see what’s right in front of me. “You can’t shut a damn door but can spot an elk on some random hillside”

Thanks for getting me squared away.


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[waspocrew]

Ha! My wife would be proud! Frequently don’t see what’s right in front of me. “You can’t shut a damn door but can spot an elk on some random hillside”

Thanks for getting me squared away.


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Happens to me all the time! haha

 

[waspocrew]

Maybe the recoil pins should be steel instead of aluminum...


Edit: I've been looking over the rings and can't see any mention of the material used for the recoil pins. All I've seen is aluminum, but could likely be wrong.

 

[Cdnance]

I have a set and when I went to look for torque specs I noticed the recommendation. Kinda making me wonder if I should change my setup.

 

[Cdnance]

Where do you see this limit posted? I just checked the website and didn’t see it.


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In the description of the rings.

 

[low2497]

I don’t recall seeing this on the webpage when I purchased my two sets of UM rings. Would like to see/hear what made them add that disclaimer.

For those of you who experienced bent recoil pins, did you notice a zero shift?

 

[HairyScandinavian]

Is this new? I don't remember seeing it before.

 

[lintond]

Maybe the recoil pins should be steel instead of aluminum...

If they are aluminum that is a mistake. They should be loaded almost entirely in shear so bending is less, but sounds like others are observing bending on non-magnum setups.


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[waspocrew]

If they are aluminum that is a mistake. They should be loaded almost entirely in shear so bending is less, but sounds like others are observing bending on non-magnum setups.


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I edited my post above to add that I've seen nothing on the site that specifies the recoil pin material. I've only seen aluminum on the page, so that's what I assume they're made of. I could be completely wrong though.