Lahti 20mm Anti-Tank Rifle

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Answers to some of the above questions.

I have owned a 18-1000 for about 10 years, and previously had a Lahti L 39. They both fire the same 20x138B round of ammunition, which incorporates a case hardened steel projectile of 2310 grains. The muzzle velocity out of a Solothurn barrel is ~ 2750 fps. That number is for the original mustard brown projos in German manufactured ammunition. The Finnish dark blue projectile ammunition is a bit slower, with a muzzle velocity of 2650 fps. Also, there is some ammunition around that is headstamped P198, manufactured by Polte, Magdeburg. It was unpainted, and the projectiles show the case hardening nicely. The Lahti is capable of extreme accuracy when properly scoped, and the Solothurn is a more pleasant rifle to shoot, although neither is excessively brutal! A .55 Boys rifle is much more painful.

Both of these 20 mm rifles are classified by ATF as destructive devices, but also as curio and relics. One needs a C & R license from ATF to make a purchase across state lines. The usual fingerprint card and mug shot on a BATF form 4, signed by the local sheriff is needed.

Today, a decent Lahti will run $10,500 to 12,500 depending on how much (if any) ammo is included. The ammo can run upwards of $60 per round for the original German manufacture, and slightly less for the Finnish ammo.

A Solothurn S18-1000 will probably sell in excess of $30,000 for a bare bones rifle, and a lot more for a nicely maintained specimen. The 2 wheeled infantry cart alone is nearly $10,000.
 
I don't know what the modern ammunition is loaded with, but the original Finnish ammo which the gun used in service fired steel projectiles. I have a round in my collection. See the 20x138B below (from the article on anti-tank rifle ammo on my website):
Is it sad, Tony, that I've been to your website so much that I already knew which one of those the Lahti fired? :uhoh:
 
I remember when some good ol boys got in trouble for shooting down telephone poles with the mail order Lathi in the 60s. Someone tried to blow open a bank vault with one which later on was made into a movie with Clint Eastwood "Thunderbolt and Lightfoot"
 
From codgerspace, I remember the early 1960s when a Lahti was advertised for $99.50 but the ammo was a crushing dollar a pop!

As I recall, in the real bank case that inspired Thunderbolt & Lightfoot, the 20mm did NOT penetrate the vault and the crooks resorted to dynamite.
 
On the back page of GI Joe comics in 1960. $69?
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........MJ......
 
The 20 mm used in "Thunderbolt and Lightfoot" was NOT a Lahti, but was an Oerlikon modified to look like a shoulder fired weapon. Oerlikon make a few AT rifles, but I don't believe that any of them made it into the U.S. back in the late 1950's or early 1960's.

The old Interarms catalogs were amazing; they offered the Lahti for $99.95, and single rounds of ammo for $1.00. By the case, the ammo was really cheap, although I don't recall the price. A Solothurn was only $189.95. A 25 mm Hotchkiss AT gun ( a wheeled artillery piece) was $175.00, as did a 25 mm Puteaux. The ammo for many of these fine old "big boy's toys" is really getting scarce these days, since the State Department and BATF have made it impossible to import any newly manufactured rounds.
 
Hearing some of you guys recall how cheap these monsters used to be has me flabbergasted. I knew the price of firearms had been driven up in price by the government through taxation and scarcity, but good lord under $100! I feel faint...
 
It's too small... but it's still cool. Real men carry 40mm Bofors AA guns. OR not :0 Thats very cool. What's the muzzle energy like?
 
Not sure what the muzzle energy is. The last time they measured it was 1908 near the Tunguska River.
 
Are these CA legal? ;) I'm sure if I remove the pistol grip and get rid of the threaded barrel I will be okay.

Dang, under $100 that is one heck of a turnaround. Psshh, some people thought they would bank on AR stuff with the Obama nomination, thats chump change.
 
but good lord under $100!

back then that was worth about $900.

Either way, that's a smokin' deal. I think A1 ARs were running like 189.99 out of catalogues back when they first came out, too, just to give you an idea.

*disclaimer: I'm only 21 and am just repeating what I heard/figured out with a calculator*
 
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You really have to see one of those guns in person to appreciate just how massive they are. Same goes for the Anzio 20mm single shot rifles.
 
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