Are lightweight mounts strong enough to do the job?

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Originally Posted by Koshinn

If you can precisely define "the job", you'd probably get a better answer.
What is a "serious bump"?
How far of a fall, and onto what surface?

How you frame your question will determine the usefulness of the answer you receive.

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By the job I mean can it hold up to real world situations. For example a drop from shoulder height on a gun, with out the mount bending. Resulting in the loss of zero.

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Originally Posted by Giggles

By the job I mean can it hold up to real world situations. For example a drop from shoulder height on a gun, with out the mount bending.

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That would deadline an ACOG...maybe. Maybe not. That's a dynamic event. It's impossible to forecast.

I have their light mount and I have not dropped it but it is SOLID. I cant get any bend, play or movement. The clamp its solid. I think this thing its solid and would withstand a good hit with no issues

I assumed all those skeletonized lightweight mounts were for and used on "botique" or competition guns.
Pretty but flimsy looks like to me. Surely nobody is taking these things into harms way?

There's a lot of assumptions and speculation here. A few questions:

1) Has anyone here seen ANY brand or type of quality optic mount (US or European, not $3 Chinese junk) break? How and under what conditions?

2) More specifically, has anyone seen the Aero Precision optic mount break or fail in use?

3) Has anyone done a finite element analysis or other serious engineering study of the lightweight mounts vs. heavier mounts? (Note that what seems strong from looks and intuition is not always what turns out to be strong when engineered.)

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Originally Posted by wolf_walker

I assumed all those skeletonized lightweight mounts were for and used on "botique" or competition guns.
Pretty but flimsy looks like to me. Surely nobody is taking these things into harms way?

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Geissele is 5.1oz, and made and used for DoD contract. It is the lightest mount I am aware of aside the Aero mount.

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Originally Posted by SomeOtherGuy

There's a lot of assumptions and speculation here. A few questions:

1) Has anyone here seen ANY brand or type of quality optic mount (US or European, not $3 Chinese junk) break? How and under what conditions?

2) More specifically, has anyone seen the Aero Precision optic mount break or fail in use?

3) Has anyone done a finite element analysis or other serious engineering study of the lightweight mounts vs. heavier mounts? (Note that what seems strong from looks and intuition is not always what turns out to be strong when engineered.)

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Bobro. Recoil lug sheared.
LaRue. Shot loose even when so tight paracord was used to remove it if it came to being removed, prior to it shooting loose.

These are things I have seen pictures of, or heard from people beyond reproach on the subject. Not something I have personally seen. Both occurred on .308s. The Bobro was a sample size of 1, the LaRue, many many many.

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Originally Posted by WS6

Bobro. Recoil lug sheared.
LaRue. Shot loose even when so tight paracord was used to remove it if it came to being removed, prior to it shooting loose.

These are things I have seen pictures of, or heard from people beyond reproach on the subject. Not something I have personally seen. Both occurred on .308s. The Bobro was a sample size of 1, the LaRue, many many many.

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Saw the same thing with a Larue 30mm mount on a SCAR. Had to go back to the factory for repair. Good news; they paid shipping both ways so it was minimal hassle. That said, SCAR17s are tough on optics/mounts.

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Originally Posted by Digital_Damage

Nonsense... out of the 16 one piece 6061 T6 non-QDC mounts we tested from industry leaders all of them passed a 30 lb pendulum blow, no impact on zero.

At 55lb we started seeing broken scope bases before any change to zero.

Your weakest point in these mounts will be the clamping force and one of the worst performers were a brand that just sold a ton of them to the armed forces.

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where is this test published

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Originally Posted by stank

SWFA has their own branded bobro 30mm mount for 210.00 for what it's worth. haven't found it yet for a better price. I absolutely love mine.

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Call Sport Optics and they will work with you on a good price.

Some places like brownells, ect might sell one or 2 variations, but to get the exact one you want (say 20MOA extra extended in 34mm with X height) you are going to have to go with Eurooptic, Sportoptic, Milehigh, ect. All should give you a good price over the phone.

Ive bought 6 Bobro's this way, and could not be happier with the product or service from the sellers.