[GOVT1911]

Anyone know where I can pickup a BP tube for my US 60mm bipod and baseplate I've got sitting around?

Also, I've done a bit of searching for them but keep running across confusing info. Some say they must be fuse fired, some say you can install a nipple with percussion cap on side of tube and be OK. (I know no drop-fired)

Anyone know of someone that'd build a BP tube that will fit my bipod?

 

[glockhead]

i have an extra but

i'm still hoping to find a back-plate some day to complete the set

i'd be glad to give you photos and measurements. I found some dom tubing with the correct id then i turned it over to a friend with a lathe who cut the tube to the correct od to fit the bi-pod. he then made an ass end from some stock he had laying around and the tub slid right in. i welded it up, painted it green, drilled a hole for the fuse and was done. it was an easy project but you need to find someone with a lathe. i don't think i paid anymore than $150 for the machining and the tubing (and i made 2 of them). even though he is a friend, i ask him to charge me the going shop rate and i throw in a case of beer.

it's really an easy project. at the time there was a guy on here selling them for $450. i just did not want to go that route.

not sure about your ignition question

 

[belt fed frog]

1911,
i just got a piece of tubing for my spanish L 60mm from www.onlinemetals.com it cost me $147 shipped i got the 2"ID A513 - TYPE 5 STEEL TUBE DOM with a 3" OD X 28" long so my unit will not take a 60mm round instead i am going to cast a nerf vortex mini football in zinc i will have to have the OD machined down and the cup and tube threaded and depending i may have to do some honing as the tube is up to -.012 undersized but it will work
the key for BP mortars is that they NOT take a standard 60mm or 81mm round and that will keep you well clear of DD designation

 

[panaceabeachbum]

Hey Frog , I bought a similar piece of tubing from them for my spanish mortar and have turned and threaded it for a registered US base cup I picked up on sturm.

The original spanish 60 base cup has had the threads machined away, fine for a BP but a real bummer for rewatt as a DD


If interested I have an original 60mm spanish tube perm welded to a base cup thats had the firing pin and threads machined away making it perfect for BP use . $200 if interested

I have fired at least 100 shots from it with BP and Pyrodex with projectiles as heavy as 6 lbs so I am pretty sure its not weak . I found some nice little juice bottles that hold aprox 1.5 lbs of sand that I can throw about 800yds with no problem, it is also the perfect size for tennis balls which can be tossed 3-400 yds with just a tablespoon of black powder.

here is a quick vid clip of it throwing a tennis ball in the back yard , you can see the wad fall to the ground right after it fires http://youtube.com/watch?v=dfTPpBDJFY0
If the base cup is perm demilled (threads and firing pin machined away) and perm welded in place on the tube I dont think its neccesary to make it smaller than 60mm . I have never seen any reg stating the tube has to be undersized, its generaly only a problem if you have a functional base cup and a functional bbl in possesion at the same time, which would then be considered a DD. A functional base cup alone is a just like any other title one firearm , transfers on a 4473 and the bbl is just a bbl . The two together are a DD.

I have corresponded with tech branch about making original 60mm and two inch brit mortar bbls and have been told that the bbls are unrestricted unless in the presence of a functional base cup .
Short story is if a non functioning(no firing pin) base cup is perm welded in place the bbl can be original bore size.

 

[belt fed frog]

panaceabeachbum,
i have one of the SG "L" 60`s with a no pin cup but i want it threaded so i can pull it apart for cleaning and i want to stay away from any DD designation by any streach of the imagination that is why i chose 2" and a vortex mini fits nicely MUW HAHAHAHAHA ha ha ha

GOVT1911
you can use any BP ignition system i like the cap and striker over fuze, no waiting and no fizzle fuze problems Dixie Gun Works makes a nice lanyard lock made out of brass with no spring loading nice and safe

you can get tube with several sizes of wall i chose 1/2" wall 3" tube and will have to have less than 1/8" per side turned off to fit the "L" collar so the will leave a nice thick tube again for safety but you can get away with as little as 1/4" wall but that is getting a bit edgy and i like to LOAD for reach

 

[MJB68]

Do a search on here. There was a guy named Kevin several years back that was making them. Excellent product and it's given me alot of satisfaction firing it.

 

[GOVT1911]

MJB,

I traded emails with Kevin about a BP tube a few years back while I was overseas. I don't remember what/why, but I didn't end up with a tube.

PBB, sent you a pm with a couple Qs on the tube. I'll take it!

Please PM me your mailing/payment info.

Thanks!

 

[waterdawg]

IMA 81mm tubes

How about the IMA 81mm tubes advertized in Shotgun News, can the cross pins be removed and the base drilled for a fuze? It would have a 81mm ID but with a cup that can not take a firing pin?

Hey Frog , I bought a similar piece of tubing from them for my spanish mortar and have turned and threaded it for a registered US base cup I picked up on sturm.

The original spanish 60 base cup has had the threads machined away, fine for a BP but a real bummer for rewatt as a DD


If interested I have an original 60mm spanish tube perm welded to a base cup thats had the firing pin and threads machined away making it perfect for BP use . $200 if interested

I have fired at least 100 shots from it with BP and Pyrodex with projectiles as heavy as 6 lbs so I am pretty sure its not weak . I found some nice little juice bottles that hold aprox 1.5 lbs of sand that I can throw about 800yds with no problem, it is also the perfect size for tennis balls which can be tossed 3-400 yds with just a tablespoon of black powder.

here is a quick vid clip of it throwing a tennis ball in the back yard , you can see the wad fall to the ground right after it fires http://youtube.com/watch?v=dfTPpBDJFY0
If the base cup is perm demilled (threads and firing pin machined away) and perm welded in place on the tube I dont think its neccesary to make it smaller than 60mm . I have never seen any reg stating the tube has to be undersized, its generaly only a problem if you have a functional base cup and a functional bbl in possesion at the same time, which would then be considered a DD. A functional base cup alone is a just like any other title one firearm , transfers on a 4473 and the bbl is just a bbl . The two together are a DD.

I have corresponded with tech branch about making original 60mm and two inch brit mortar bbls and have been told that the bbls are unrestricted unless in the presence of a functional base cup .
Short story is if a non functioning(no firing pin) base cup is perm welded in place the bbl can be original bore size.

 

[amish-bob]

GOVT1911

Did you get a tube yet? If not, I might be able to come up with something for you. They are not cheap or light but I might also be able to get it delivered to NC. Shoot me an email if you're interested

amish-bob
Rob S in PA

 

[panaceabeachbum]

I know quite a few people do use those as BP muzzle loaders from the 81mm display mortars , they are just right for throwing cans of beans. I believe Weaponeer has a vid clip of his on youtube.

 

[Sniper258]

plus one for amish bobs offer

 

[Yohan]

Shoot Bill McKenna an email subgunstoo @ icehouse.net He made mine and Kevin used to sell them for him. Tell Bill that John Marshall sent you. HTH!

 

[GOVT1911]

Thanks guys. I emailed Bill M last week and he said he is not making the tubes now and isn't sure he'll make more.

I did pick up a tube from a member here (Thanks PBB!)

I appreciate the offers to square me away, it's nice to have multiple offers of help!

One more quick question for ya'll.....I have a US M5 baseplate and bipod with data plate (don't recall the date, but I THINK it was 1945?) It's in mechanically good shape and the bipod looks pretty good actually, but the baseplate has some spots of pretty heavy rust. Should I take it and have it blasted and then prime/repaint or should I just knock the rust down and keep it "original"? I'm not building this for any type of collector value, just want to shoot it and have fun.

 

[Yohan]

In my humble opinion, if you keep it original, it will continue to rust into an original piece of doo-doo. If it were mine, I'd take care of the rust (blast it away) and refinish it the same way it was issued to the boys, although I'm not sure what the original finish was. I have a Brandt 60mm light mortar (BP). I cleaned mine up and hit it with some OD paint. I think the main thing is preservation. If you found it all oiled up with some dings and scratches, I'd suggest leaving it alone, but if it's rough- help it out and preserve it!

 

[GOVT1911]

That's what I had figured I'd do, just wanted to see if anyone was gonna poop purple bricks about "destroying an original". LOL I'll take care of it as I take care of all my firearms. Now to find a sight for it (M4, I beleive?) I know it won't really allow me to actually "sight" with it, but it'll look cool, and chicks dig cool, right??