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I'm kind of wondering how much of the problem is also user error.
The instructions that come with the Spuhr mounts don't seem to be the best. I had to learn a few things by emailing and asking them.
One thing they recommend is using wet torque on the ring halves - either with loctite or the factory wax that is put on the screws.
a vast amount if things people have fail come from improper use or lack of rudamentary understanding of mechanical fasteners and torque. i would surmise most of the spuhr "failures" i read about, which isnt much, comes from improper torque and no lube. its very easy in the fastener world to get false torque and bind especially on aluminum when fasteners are dry.
this also applies to adding a lubricant to the rail/clamp interface which someone mentioned above. just because spuhr is the only one recommending it sure as hell doesnt mean no other mfg shouldn't. there has been a ton of testing that went on behind the scenes a few years ago and it was proven beyond a shadow of doubt having a lubricant between the rail and clamp provided a perfect return to zero from impact that dry mounts typically did not. this was tested on basically every mount and ring combo out there.
so lube your shit and torque it properly. you wont need any rosin unless you have one of those baby shit cerakoted shift and benders...then you might want some.
My spuhr is on a .338 Lapua, Sako TRG-42 .338 Lapua with a PMII. No slips or issues and no rosin.Still interesting. I’d like to know the percentage of people that have had this issue following the proper steps vs those that haven’t had any issues. With that said, mine isn’t on a .338 Lapua lol!
While I don't necessarily disagree with anything being said here, as an engineer, my philosophy is that any design that is reliant on end user input for reliability and functionality, is not a properly engineered design. The amount of failures with Spuhr's caused by the end user demonstrates that it's not a simple plug and play design.
One of the big reasons why I'm a huge fan of ARC rings is because of how elegant the design is. It's really hard for the end user to fuck up the installation of that product - which is exactly what a properly engineered product should be.
...a requirement to apply proper torque sequence...
Ok so you're an engineer ( kind of like saying you are a Vegan ).While I don't necessarily disagree with anything being said here, as an engineer, my philosophy is that any design that is reliant on end user input for reliability and functionality, is not a properly engineered design. The amount of failures with Spuhr's caused by the end user demonstrates that it's not a simple plug and play design.
One of the big reasons why I'm a huge fan of ARC rings is because of how elegant the design is. It's really hard for the end user to fuck up the installation of that product - which is exactly what a properly engineered product should be.
Ok so you're an engineer ( kind of like saying you are a Vegan ).
I ran a crane for 30 years, I surely wouldn't call Krupp or Manitowoc a poorly engineered product because the typical person couldn't operate it.
Proper form means you never torque any bolt between 80% and 100% of its designated value. You should always torque to <=80% (stop) and then go one motion from <=80 to 100%.
So with that 16x bolt spuhr mount you really need to do x32 calibrated adjustments to do it "properly"
It's a scope mount, not a crane. You shouldn't need any special training to successfully mount a scope. Engineers have a tendency to "over engineer" things, to the point that they are not user friendly. There's elegance in simplicity.
Wade, I did. I don't know if it made a difference or not but I had some and figured it can't hurt, so I gave them both a light dusting before mounting. Neither one have ever budged, but I don't know if that has anything to do with it or not. I DID follow every conceivable best-practice in torquing and sequencing as well.Rosin?
I dont need some of the features the Spuhr offers so I went with the MPA one piece mount.
Is this still available?
That's the whole point of a Sphur being over engineered,.
They do come with instructions.
Long range shooting can be a complicated endeavor.
Look if I can figure them out I'm pretty sure 99% of other people can.
Take a look at how many threads there are on stripped screws alone, that should tell you something right there.
What issues with ARC Rings?Not to mention that there are threads here about having dramas with ARC rings as well.
Honestly you can not take anything for granted with people on the internet.
Not to mention that there are threads here about having dramas with ARC rings as well.
Honestly you can not take anything for granted with people on the internet.
What issues with ARC Rings?
people with dramas, not issues with ARC rings IMO. From memory there was a TT parallax issue and something else to do with how someone thought 65 inch pounds was too much torque because other rings use less than half that.
So I’m not saying anything at all is bad about ARC rings, only people will have issues with anything.
Also had a first gen spuhr with cracks In both rings. It was sorted quickly with no drama.
^^^ not to drail the thread
I wonder how many coated/painted scopes slip compared to factory coating
This guy always squats on his spuhrsI wear Spuhrs with assless chaps.
(Yes, I know all chaps are assless).
So… you’re saying you don’t own any Spuhr…Most can't buy Spuhr Mounts , they give a short IQ test before purchase. If your under 150 they give you the number for Walmart.
I purchased 2 so I must be a fucking Albert Einstein.So… you’re saying you don’t own any Spuhr…
ZCO’s new mount. Nightforce , badger , Geiselle.
So many better more reliable mounts.
And yall still deep throating stripped screws , cracked side bars , cracked top rings , breaking scope parallax , etc