AR-10 (OBR) scope mount - two piece rings ok?

I saw 5 out of 7 LaRue scope mounts loosen on .308 guns in a Shrek "Heavy Carbine" class that I hosted in late 2013. John claimed that he saw similar results in every "Heavy Carbine" rifle class he teaches regardless of how tight the LaRue mounts are set-up due to the extra pressures inside of the .308s. My Bobro mount cracked at the cross bar that rests between the rail sections after running it thru the Shrek class on a .308 LaRue PredatAR.

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See people confuse "high end" QD with using it on a 5.56... so automatically price becomes an issue.

Most default to Larue because they use them on M4 / 556 type rifles which are generally shot inside 100 yards, or the maximum distance of 300 yards. With a mid range optic or less so of course they work well and don't see any issue with them. However if you really get down to it, this is not a "precision rifle mount". The attachment point has not changed between the SPR and the OBR, so you are relying on the same security originally designed for a low recoiling rifle.

Heck just watch the Magpul Dynamics video, the proof is there in HD. They talk up the Larue, make sure everyone is using them and then right after Chris Costa has an issue with his Larue QD coming loose and to cover it up, they go into that Monkey Drill to swap everyone's scopes ... yet they are affordable and readily available, not to mention the freebies, so all is right with the world and why not, they have brand recognition and a huge following. No one questions the decision when you say you bought one. But is it High End or the Best Component for a Precision Rifle ? Well that is debatable...

Agreed that GDI need to get their stock up, they are used to selling to the military in bulk and focusing on that one sale at a time. So the retail aspect of things are new to them. And for low cost I like the Bobro as noted, they are a well made mount also, but make no mistake... People tend to overlook the options too, like the ability to mount your red dot, the fact you can use your leatherman to adjust it, not only that, but tighten it so it won't come off without pressing a knife edge into the rails. That may not seem like much of difference but if you think about the bearing surface being used, it is. I have twice now ran the Gunsite XLR Class with a GDI on my 338LM and also shot the K&M match with a set of GDI under those conditions and never once was there an issue of them coming loose. Even after 200+ rounds of 338.

The cheapest optics I have mounted is a NF F1, all the others are S&B, 3-20x and 5-25x, so why would you trust a $3,200+ optic in a $200 or less QD mount... even my Fixed mounts for these scopes are a Spuhr which are not QD but still cost $450, so there is definitely a pattern there.

You can't expect Badger / fixed ring reliability from a QD mount that recommends Loctite just to keep the ring halves in place. Thought I do like he at least changed the ring design to move them out of the way of the turret.

They work, and many people are happy with them, you're decision will be a solid one with the masses, but don't confuse high end with the most common application which is 556 inside 100 yards, or at least not beyond 300.

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