Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Can you use this Lead Sled for an AR-10 such as a Sig Sauer 716? Don't want to buy this if it won't fit. Thanks
Document: I just purchased the Caldwell Lead Sled DFT on Amazon. I wanted to use it to sight in an AR 10 style rifle with a PMAG 20 LR 7.62x51/ .308 20 rd. magazine. The problem is that these .308 Magpul magazines will not fit between the 'dual frame' rails! They are too close together and there's no way to adjust them further apart. Why would they design this product to only work with 223/556 magazines?
I love my lead sled! I've used it twice now and have had no problems with it. Fortunately I'm very mechanically inclined so putting it together took about 10 minutes. It's very sturdy and stable. Nonetheless, it still hops a little when I shoot my .300 win mag. I just bought two 25lb lead shot bags to see if it stops the hopping. It's a bit big and bulky to put into closet easily. Overall, glad I bought it and would buy it again.
In other words, this isn't a set-it-and-forget-it rest. I still need to practice a good grip, good breathing, and good trigger pull if I want to keep my crosshairs on zero. Having said that, the sled reduces my effort at holding zero by 70%--so much so that I was tempted to ignore breathing discipline while shooting.Cons:- It's difficult to fit more than 3Caldwell Lead Sled Weight Bagson the tray.
The problem with this is that once you buy this rest you still need to buy the bags of lead shot (at least 50 pounds, which will run you almost $100 additional unless you get recycled lead shot. I ordered some $87,00 for 50 pounds shipping included. I got this NOT to soften recoil (My AR-15 isn't one heavy on recoil)  I got it for sighting my scope and Aim Point red dot sights since it is so steady.
I will give a comprehensive review as soon as I'm able to try it.Update July 2, 2014This will NOT work with my AR-15  My vertical grip must be removed in order to use this with my AR-15.... plus I need to modify my rifle. Not happy.
The Caldwell lead sled DFT is build tough. Very steady , handles high power rifle recoil very well. Adjusts with fine precision. If you have firearms with high capacity magazines the dual rail makes it possible to use. For weight on this shed I used Caldwell 25lb bags, they come empty and they say to fill with lead shot, but is expensive. So I bought a 50lb bag of sand...
I've shot off the original Lead Sled Plus and the Shooters Ridge Deluxe Rest and now the Lead Sled DFT. This is the best of the bunch. Much more solid and stable than the Lead Sled Plus. Fussier to set up and use than the Shooters Ridge but more accurate than either. I shot the best groups of my life today using this rest and 4 of my rifles. Assembly instructions are out of date and terrible. I don't know why they can't ship it completely assembled.
The 2 25 lb. bags of shot will fit into the 2 Caldwell Lead Shot Carrier bags, but the filled bags will not fit under the 'dual frame' rails when placed on the trays.
I like the way you can set elevation and how solid it is with lead weights put on the tray.It makes the perfect base for sighting in my high powered rifles, I know I will get many years of use out of it and will be passing it down to my children.
I love this product and I'm so glad I didn't spend the extra money on the model with the handle. It's extremely micro adjustable and rock solid. I highly recommend this lead sled DFT.
Answer: yes