There was some controversy over my using insulation as a stopping material, though whenever I shoot at it I never heard any noise of impact and I have seen both pellets and bbs trapped within the first of the 4 layers of insulation I used.
People are correct that it is not a healthy material to use, and is not probably going to last very long, however I wanted still just out of curiosity see how effective it is until it gets shot up too much.
I wanted to do this experiment a couple days ago but I either kept getting home when it was dark already or it was raining.
today, I simply cut up a single vat of old insulation into three squares to create three layers and tied it to a wooden board as a backing material.
I then shot at it with 10 pellets and 10 bbs from this distance:
It looked like this before being shot at:
This is what it looked like when I got back into the garage just before I ripped each piece apart to find the pellets and bbs.
I put on some work gloves, and a regular white dust mask. When I tore each layer apart, I found 6 bbs in the first layer, and then nothing else. I didn't even find any pellets at all.
Of course I am still learning and have lots of practice to do so 6/10 bbs are what I would've expected to hit anyways.
I think I can explain not finding any pellets because the pellet rifle I was using I bought used years ago, and is missing part of the sight, is a little loose in the stock, and the barrel seems a little loose as well, couple that with me not being very accurate yet, and it's not surprising I could've missed entirely. The bb gun I was using is the Daisy Red Ryder I bought simply as a movie novelty.
I will have to do a part 2 of this experiment with a larger target, and probably inside as well because that way if I miss and hit something else, I will know due to hearing the impact and/or ricochet.
My Webly Tempest .177 is supposed to get to me tomorrow according to the tracking, and Wes is supposed to be shipping that .22 under lever rifle I ordered from him tomorrow, so I should have more accurate pellet guns soon.
However it seems that while not healthy for you, it should work for sub 500fps air guns as a temporary solution until you can get better material to use, such as duct seal.
I am not recommending to use this for permanent or prolonged use, and would suggest only using it if you don't have any other options. I also highly stress to use it outside or in well ventilated room.
