GTA
General Discussion To Gateway To Airguns => The Shop => : TCups April 29, 2008, 07:23:59 AM
-
Is an 8 inch round tin container 2.5 inches deep (ie, a cookie tin) filled with duct seal putty sufficient to stop a pellet from, say a .20 cal R9, or a .22 cal 2240 pistol, or would a reinforced backing still be needed? it seems to me that this may be the perfect replacement "speaker" for the bookshelf speaker I intend to convert into a pellet trap.
-
how far away are you going to be shooting ?
-
TEC, Hold tight Buddy, I got ya covered. Im gonna post here as soon as I get my call back from Joe/Akita Breeder. 2.5" is marginal for long term shooting, but,, Ill get into that later.Stay tuned to this Bat Chnl.! Tim.
-
Range, indoors, probably 3 - 5 yards max, with .177 B3 pistol or at most, .22 C 2240 CO2 pistol.
IF I shoot with a rifle, I doubt I will shoot indoors and IF put this in the old Polk Audio cabnet, I will not be using it outdoors as it will stay on my bookshelf.
tec
-
I would put more in if you can it will prob. hold up for a while but better safe than sorry
-
Roger that, Trek. I will find a deeper tin and buy another tub or two of the putty. Putty is cheap, esp. compared to what the wife will take out of my hide if I should err on this. I will go for 4 inches and test outdoors first.
-
That way, even were the duct putty to be penetrated, the board would a}stop the pellet & b} make enough noise to alert you ofthe problem . . .
-
Duct seal is unbelievable in its abitity to stop pellets. I have noticed in the last few days that penitration is much greater on 80 deg. days compared to common 40 deg temps of winter here. Density shure seems to change. However, it is still a great medium that is cheap & easily obtainable. My Diana 350 (177) @ over 1000 fps @ 80 deg. (7.9 gr. CPHP,s) penitrates less than 1". At 40 deg. temps if memory serves me right,less than 3/4". Since Tom Gaylord gave me advice on duct seal, I have been using the stuff for about 6 months. I have yet to find anything better! Alot of enterprising airgunners have come up with a few alternatives, some great ideas for shure,Im sticking with my tried & true. Now I try to make a post to my friends regarding this issue! Tim.
-
The brand new "fill" with duct putty is definitely very soft at temps in the mid 70's. This stuff is water soluble so it will presumably "set" somewhat and firm up after it dries out a bit. Until then, I smoothed it back out and stuck it in the fridge to see if it would harden enough to shoot some more. Wouldn't want to shoot through the top of the trap because I hadn't noticed the new putty sag into the lower end of the trap behind the target.
-
TEC, Im wondering if we are using the same putty. The stuff I use is totally impervious to water. My HVAC guy found some for me that was grey in color in "tubs", when he saw the black stuff Im using he said it was way denser. Just want to make shure ya got the right stuff! Tim.
-
Tim:
My stuff comes in half gal plastic tubs, is gray, and is definitely water soluble. Bought it at Lowes and was told this was the only duct seal they knew of. It is definitely gray in color and about the consistency of peanut butter. It will stop a pellet in about 1" or less, but it definitely did not come in bricks and it definitely sags into the lower end of the trap after about 30 minutes of shooting or so. I shot outdoors with it today for the first time. I turned the trap over every few targets to keep it from getting too out of shape. I suspect I may have a different variation of duct seal than the black stuff you describe. This definitely came from where the air duct works were, not from the electrical section. The containers already went out with the recycling this AM. They are a white plastic half gal bucket similar to what ice cream might be packaged in.
-
Hey Tom, when I went to Lowe's I found the same stuff and they said the same thing..:) I opted not to buy it because it was not dense enough. Would be nice to find the stuff that Tim is talking about.
Gene
-
Tim:
Are you saying the "black" putty is more dense than the gray(water soluble) that comes in tubs?
If so, where did you get the black and what brand is it?
Thanks,
Mike
-
duct seal I got from Home Depot--one pound "pugs" grey putty solid blocks about 1 by 2 by 5 or six inches covered with a plastic wrapper. If this thread is still going on when I get home next week I will give you the manufacturers name.
-
Well darn, now I have to drink more wine and start again. . .
-
Tec, I think what you have is HVAC duct mastic. It comes in 2 types indoor,outdoor and will dry over time. The electrical duct seal is about the same consistency modeling clay, which also works well. If the only problem your having with the mastic, is that it sags, just leave your trap laying down until ready to use.
Mike
-
Well darn, I was all set to drink more wine and try again.
Yes, the putty is messy and has taken a while to set. I keep the thing flat when not in use. Putting the target in the fridge also works. The freezer would be even better, I suspect. But even soft, at the consistency of peanut butter, the stuff will absolutely stop pellets from either my B9 or RWS 34 at 10 yards in less than 1 in depth. The main hassle is just that the stuff, before it cures is sticky. And even after the surface cures, when you drill a bunch of holes into it, it gets an oozing wound. Have to be careful not to get it on your hands, then on your gun. The better solution would have been to buy the right kind of putty to begin with. But this was a fairly cheap lesson as these sort of things go.
-
Go ahead and have some more wine and fill the box with the right stuff. In the mean time, you can take the lid off of this one and let it dry for a week, or 2. Not sure if it will still stop a pellet after it dries, so test outside first. You could also fill the box with scrap carpet, several layers thick. There are many things that will work and you have found the perfect box to try them on, after the contents have been emptied,hehe.
Mike
-
TimmyJ gave a product number for duct seal on another thread in this forum. He said the bar code number was 3207680110. Don't know if that was from Lowe's or Home Depot, though. He used duct seal manufactured by Gardner Bender. I'll try to post a page from the G-B catalog - might be helpful in dealing with the store help.
-
Here's the catalog page (hopefully)...
-
The duct seal I'm useing came from home depot it came in strips 1 lb each I have a trap about the size of a clip board and have 1 layer in it used 6 strips to cover the back of my trap the back is 1 inch oak and I've taken out the duct seal to clean out some pellets and flip it over that's a pain but none of the pellets have gone through it yet and I'm shooting about 10 yds with from 550 fsp to 1000 fps rifles both in 22 cal as well as 117 cal. works great next time it needs service I'll replace the duct seal with new . howie
-
Hoo Rahhh! Finished at the office. I am going hunting now . . . for putty.
-
Thanks for all the input guys!! Great stuff it is!! Been building traps all day. Now I make a post! Tim.
-
Well, OK!! Took a trip to both Lowe's and Home Depot, but I have about a dozen new bricks (all that was on the shelves at both stores) just waiting for a new home. The duct seal "glop" that I put in the first trap has hardened up for about the first 1/4 to 1/2 inch depth, but after it stands up for about 30 min. or so, there is still some serious sagging going on. Any way, I looking forward to the new woodwork. After all, if you aren't buying new air guns, then what better to do than to "accessorize" for those you already have, right? also, my new front rest tripod and bag arrived today. Now all I need is one of Gene's new tables in an ambidextrous model with dual cup holders.
-
What Ya Need cup holders fer?? Coozies work fine!! LOL! Tim.LMBO!(laughing my butt off!) He He! Tim.
-
Sometimes I get excited when I shoot. Don't want to tip one over! I am getting "jiggy" with my scope tonight and plant to "Head Bop" till I drop tomorrow, as per the article in the library "The A Team Scope Set Up". Then I hope to return my Bushnell Banner to its rightful place, atop Fraulein "Dee", and get zeroed in.