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thumper time

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i thought i would try and see if this gets in. if so i will no longer use my email address. how about a thumper for less than 500.00. i used a harrington and richards single barrel shotgun, very cheap, cut the barrel off the locking lug, opened up the frame some and welded a 1 and 1/2 bore barrel on the locking lug. welded a 2 inch washer on the face of the frame. now i have a 18 inch barrel thumper that will shoot a puter slug through a car door and you can almost stick your hand through the hole. cases are stainless steel and i have only five as they cost me 40.00 each at the machine shop. will experiment more with projectiles and let you know how they come out. it shoots and sounds just like the old m-79 grenade launcher. range is not quite there yet but as i said i am experimenting with different slugs. puter is good so far due to the weight factor in the slug. it is all legal. i couldnt get in as harley guy so here it is anyway....
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ElectraGlide:

I don’t want to seem like anybody’s nagging mother-in-law, but I do hope your thumper is all legal; you have an approved Form 1 for a Destructive Device. The way I understand the 1968 GCA any firearm that uses a cartridge over .50 inch is a DD, except for things like the 37mm flare launchers. It’s not that I have a lot of love for the ATF, I just would not want to get into any silly fiasco with them. If you have any questions check out their web site http://www.atf.treas.gov or get in contact with the guys there that know which end of the tube the round comes out of.
Bureau of ATF
Firearms Technology Branch
650 Massachusetts Avenue, NW
Room 6450
Washington, DC 20226
Just want to make sure I’m not reading about in the papers later on, that’s all.
 

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At one time I was considering building an M-79 (still might, someday) with Randy Shivak’s M-79 receiver and making it a 40mm, I thought it would be cool to use the 12 gauge insert and shoot skeet. The way I understood all the rules was that I could buy his receiver on just a 4473 and legally use it to build into a 37mm “flare launcher”, but if I wanted do go to the 40mm I would have to complete an ATF Form 1 to build a Destructive Device. I’m not trying to rain on your parade, just don’t want you to get into any trouble. If the local ATF office says it’s OK you might want to get it in writing. Thanks for indulging me, I’ll get down off my soap box now..
 
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