Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Would I still be able to use the iron sights on a Mosin Nagant with this installed? I'm unsure how bulky this thing is, and also skeptical. Since the same thing can be achieved by bedding and shimming your rifle stock.
Document: I ordered this for my modified Mosin Nagant. I removed the forestock (top and bottom, free floated the barrel all the way to the receiver, and noticed that after firing the barrel would literally jump up 8 inches in the air. That delayed coming back on target.
Install the Sims limbsaver shooter X ring on my hunting rifle, and I shot a 3 shot group that a silver dollar would cover.
I mounted one of these on a spring-piston air rifle, and it's impressive the improvement in my groups when shooting targets. Hard to believe what a difference this piece of rubber makes. I'm convinced...
I have these on a few rifles. They do seem to dampen rifle vibrations as claimed. However, results can vary quite a bit. I'm pleased to say I have yet to see it hurt accuracy in any way. Try one and see for yourself if it makes a difference for you.
I am a bit skeptical about any product that claims to improves a rifle's performance "magically". I was very surprised, however, after putting this little piece of rubber on my rifle barrell and watching my groups shrink dramatically!I have a combat fluted Yankee Hill Machine 16" upper that was shooting great "defensive effective" hits; but I wanted better results to make it my coyote gun.
Followed instructions but find it tough to install. Once in place, using gun oil as recommended, it stuck and cannot move either direction. Haven't fired mt rifle to test it yet; however, will be difficult to test since it can't be moved.
Very good product, I would highly reccommend to anyone in our same situation.
This little piece of rubber actually works!! I'm not an expert in physics but apparently the science is based on the absorption of the rifle barrel's harmonic resonance vibration; which causes each shot to be slightly off from the point of aim when looking through a scope.This device absorbs the vibrations and steadies the barrel with each shot.
Great, I love it! I put 40 rounds down and hit all my objects. I also put a three inch group at 100. 165 gr. 30-06.
I hit him dead on in the shoulder with no variation from the point of aim seen through the scope, he went 5 yards and dropped. Since then I've purchased more of them; one of which I put on my Ruger #1 in 30'06 with the same results.Good shooting and good hunting! !
Answer: no