moose53
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Joined: 24 Jun 2006
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The base plug is rubber with a steel plate vulcanized to it , it is bolted to a copper rim by a stainless steel bolt that is drilled for a shotgun primer. 100% seal works very well.The fit on the plug can be adjusted by the bolt.
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rifleshooter2
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Joined: 08 Jul 2004
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Location: Pittsburgh Pa
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Thanks very ingenious I would have never thought of that.
Andy
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moose53
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Joined: 24 Jun 2006
Total posts: 14
Gender: Unknown
Posted: Tue Jun 27, 2006 1:33 pm Post subject: Breach Loaders
I just learned how to resize photos, so here is one of my 40 mm rifles.
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Double D
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Location: ...on the road from Umhlanga, Kwazulu Natal, South Africa to Montana
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Posted: Tue Jun 27, 2006 3:46 pm
That is a beautiful gun. Tell us about the construction. Where did you get the barrel? What gun does it replicate. At first I thought it might be a Whitworth but then I'm not sure. I think I have seen that gun design some where before.
You are going to have to give us some details on the breeching system. How does it work?
Who built your bullet mould? Is the projectile zinc? Where are you shooting?
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moose53
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Joined: 24 Jun 2006
Total posts: 14
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Posted: Tue Jun 27, 2006 8:54 pm Post subject: Breach Loaders
My barrels came from the ship scrap yards in Portland Oregon in the mid 70`s.I got the last 3in-50 barrel they had for $50.00. I missed the piles of 40mm barrels stacked up like fire wood,but i did see dumpsters full of 3&4 foot 40mm barrels for .20 cents a pound,bought 3 of them. Spent most of my mony on 3 in barrels. It makes me sick to think that most of the barrels were shipped overseas and melted down.I was going to school at the time and didn`t have alot of money .The 40mm barrels are modeled after the Whintworth Rifle with a few more modern adaptations.I have my own shop so I do all my own work, sure is fun!
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rifleshooter2
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Joined: 08 Jul 2004
Total posts: 42
Location: Pittsburgh Pa
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GBO Auctions Posted: Wed Jun 28, 2006 2:07 pm Post subject: Re: Breach Loaders
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My barrels came from the ship scrap yards in Portland Oregon in the mid 70`s.I got the last 3in-50 barrel they had for $50.00. I missed the piles of 40mm barrels stacked up like fire wood,but i did see dumpsters full of 3&4 foot 40mm barrels for .20 cents a pound,bought 3 of them.
I was just on Big Sky Surplus looks like th prices went up a bit
40MM BOFORS NAVY L-60 AA— FULL LENGTH BARREL— $2,900 ea.
40MM BOFORS NAVY L-60 AA FULL LENGTH BARREL (with water jacket) — $2,995 ea.
40MM BOFORS L-60 BARREL CUT IN ½ MUZZLE END — $995 ea.
40MM BOFORS L-60 BARREL CUT IN ½ CHAMBER END— $995 ea
Andy
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blaster
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GBO Auctions Posted: Wed Jun 28, 2006 6:16 pm Post subject: Re: Breach Loaders
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I was just on Big Sky Surplus looks like th prices went up a bit
40MM BOFORS NAVY L-60 AA— FULL LENGTH BARREL— $2,900 ea.
40MM BOFORS NAVY L-60 AA FULL LENGTH BARREL (with water jacket) — $2,995 ea.
40MM BOFORS L-60 BARREL CUT IN ½ MUZZLE END — $995 ea.
40MM BOFORS L-60 BARREL CUT IN ½ CHAMBER END— $995 ea
Andy
Big Sky Surplus is where I got my 20 M/M bbl to make my very simple version of the "Whitworth" but it's nothing compared to the breech loader in the pictures above. Big Sky Surplus does have a LOT of stuff but his communication skills leave a lot to be desired..l.
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Graduate of West Point (West Point, Iowa that is)
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I got caught up in this very interesting thread and overlooked another issue.
Title 27: Alcohol, Tobacco and Firearms
PART 479—MACHINE GUNS, DESTRUCTIVE DEVICES, AND CERTAIN OTHER FIREARMS
Subpart B—Definitions
Antique firearm. Any firearm not designed or redesigned for using rim fire or conventional center fire ignition with fixed ammunition and manufactured in or before 1898 (including any matchlock, flintlock, percussion cap, or similar type of ignition system or replica thereof, whether actually manufactured before or after the year 1898) and also any firearm using fixed ammunition manufactured in or before 1898, for which ammunition is no longer manufactured in the United States and is not readily available in the ordinary channels of commercial trade.
ATF regs do allow Antique Cannons shooting fixed ammo. The key is
for which ammunition is no longer manufactured in the United States and is not readily available in the ordinary channels of commercial trade.We need to be be very carefull in this discussion to be sure the gun and ammo we are talking about meet this criteria.
Now to get on with the discussion...
Heat softens brass, working hardens it. Normal brass cartridges have a work hardened head to give it strength. The case body is slightly less hard to allow spring expansion and yet still have strength enough to hold and seal the pressurized gas from escaping. The neck is soft to allow projectile release.
How do you deal with the annealing effect of soldering brass to copper or vice versa in the head area?
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moose53
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Joined: 24 Jun 2006
Total posts: 14
Gender: Unknown
GBO Auctions Posted: Thu Jun 29, 2006 11:21 pm Post subject: Breach Loaders
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I did not know the ATF made allowance for any fixed amunition,that is very nice to know.None of the cases I made can hold a shell.Do you know when the Hotchkiss Mountain Rifle was put into service,and would it be considered exempt?
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Powder keg
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GBO Auctions Posted: Fri Jun 30, 2006 6:30 am Post subject:
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I think if it uses fixed ammo you are going to have problems?
DD my intents are to build cases for my blank firing signal cannons. They are almost imposible to buy.
Later, Wes
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Wesley P.
"Powder Keg"
Custom Machine work done reasonable. Cannons and Mortars and Gonnes, Oh My!!!
"When the gun is lost, All is lost"