WTF happened?

[jay-elz]

So took my X Macro to the range in Sac today and the dot sheared off and ripped itself apart! Range master and a few others could not make sense of it. Range master 3 10rnd mags prior. Last mag, when this happened, I was double tapping & this happened. Any ideas? Definitely taking it to my local gunsmith but im lost as to how!!

 

[kevsf]

Did the screws break? Did you torque it down and use blue thread locker?

 

[jay-elz]

Im going to say yes because they were no where to be found. 12lb Torque down and blue thread locker

 

[M_N04H]

Did you lose the LCI piece too? I wonder if the had anything to do with it.

 

[jay-elz]

The LCI flew off but was located..Just dont know how that would completely tear apart the lense frame.

 

[BOOLITZ]

I can't make sense of the force required to do that.

Is it possible you put a round through it as it flew off?

 

[Gawernator]

That's insane

Was it an overpowered reload somehow? Which screws? Maybe the screws were short and didn't have enough thread engagement? This is why I use a silver sharpie and put witness marks on the screws too

 

[BOOLITZ]

Send it in for warranty

 

[jay-elz]

I can't make sense of the force required to do that.

Is it possible you put a round through it as it flew off?

Not sure how! The amount of force it would take to rip the lens frame in 2 just doesnt add up!

 

[jay-elz]

That's insane

Was it an overpowered reload somehow? Which screws? Maybe the screws were short and didn't have enough thread engagement? This is why I use a silver sharpie and put witness marks on the screws too

No these were fresh out the box Sellier & Bellot 115gr.

M3 x .5 as required by sig with blue thread locker on them. Torqued to 12lbs & i run a metallic bronze mark on my screws as well..I just cant connect the dots on how TF this happened!

 

[jay-elz]

That's insane

Was it an overpowered reload somehow? Which screws? Maybe the screws were short and didn't have enough thread engagement? This is why I use a silver sharpie and put witness marks on the screws too

No these were fresh out the box Sellier & Bellot 115gr.

M3 x .5 as required by sig with blue thread locker on them. Torqued to 12lbs & i run a metallic bronze mark on my screws as well..I just cant connect the dots on how TF this happened

Send it in for warranty

I was thinking the same thing..I was going to have the gunsmith look at it prior but im lost on how to even explain it

 

[Plenty_Pack_556]

Did you overtighten it? When you mean 12lb torque, do you mean 12ft-lb? Maybe screw had cracks just waiting for the right energy to yeet itself.

 

[Gawernator]

No these were fresh out the box Sellier & Bellot 115gr.

M3 x .5 as required by sig with blue thread locker on them. Torqued to 12lbs & i run a metallic bronze mark on my screws as well..I just cant connect the dots on how TF this happened!

If everything was correct all I can think of is that the screws failed. Who made the screws? I'd ask for warranty if the screws came with the optic

 

[jay-elz]

Did you overtighten it? When you mean 12lb torque, do you mean 12ft-lb? Maybe screw had cracks just waiting for the right energy to yeet itself.

Yes 12ft-lb & no I hand tighten then torque down.

 

[Plenty_Pack_556]

12ft-lbs? Thats your problem.

 

[Gawernator]

Yes 12ft-lb & no I hand tighten then torque down.

that's why they broke then. 12 ft lbs is 144 inch lbs and they should only be like 15 inch lbs.

 

[jay-elz]

If everything was correct all I can think of is that the screws failed. Who made the screws? I'd ask for warranty if the screws came with the optic

They came with the optic. Nothing aftermarket on the screws. Oh they for sure are getting a call but what could have caused the sight to rip apart like that..Thats whats racking my brain!

 

[TheRatDragon]

So took my X Macro to the range in Sac today and the dot sheared off and ripped itself apart! Range master and a few others could not make sense of it. Range master 3 10rnd mags prior. Last mag, when this happened, I was double tapping & this happened. Any ideas? Definitely taking it to my local gunsmith but im lost as to how!!

Is that your optic? What kind of optic were you running?

 

[Gawernator]

They came with the optic. Nothing aftermarket on the screws. Oh they for sure are getting a call but what could have caused the sight to rip apart like that..Thats whats racking my brain!

It didn't fly off and hit something solid?

 

[Jon F]

Out of battery detonation. It blew out the LCI and took the optic with it