The Accurate Reloading Forums
This is a big bore
29 September 2002, 04:53
D HumbargerThis is a big bore
http://www.ohioordnanceworks.com/lahti/l.htm 
The Finnish 20mm Lahti anti tank gas-operated self-loading rifle of 1939. 10-round box magazine clipped into the top of the receiver. Lahti has a rack and pinion rotary cocking handle, a rotating muzzle brake and two bipods. There were only 1906 of this rifle ever produced. Thats a PKM inder the Lahti.
![[Big Grin]](images/icons/grin.gif)
This is THE rifle for you OverKill!
[ 09-28-2002, 19:56: Message edited by: Bear Claw ]29 September 2002, 05:24
<JJohnston>You know you're in for some serious recoil when your rifle has skids!
![[Eek!]](images/icons/shocked.gif)
29 September 2002, 07:06
WachtelHave you ever tried using a regular bipod in a few feet of snow
![[Roll Eyes]](images/icons/rolleyes.gif)
[ 09-28-2002, 22:07: Message edited by: Wachtel ]29 September 2002, 07:08
BER007Bear Claw,
I like the Harmonica flashhiger of Lathi. Great name for a great muzzle break.
29 September 2002, 07:14
SaeedHow about our new wildcat?
Next to it is a 375 H&H magnum!
29 September 2002, 07:29
MingbogoSaeed
Where is the gun for this cartridge? It is no good without a gun to shoot it. Have fun.
Cheers!
Ming
29 September 2002, 07:40
500grainsSaeed, I think you are playing a trick on us. The one on the right must be a 308 Winchester, while the one on the left must be the wildcat, perhaps a 0.00375 HH-Junior?
29 September 2002, 08:12
Curtis_Lemayis it me, or does that one on the right have the distinct look of plastic?
[ 09-28-2002, 23:13: Message edited by: Curtis_Lemay ]29 September 2002, 09:22
<quickdraw>Y'all boys have too much fun.
--QD
29 September 2002, 10:52
D HumbargerCome on Saeed.. I know that thats a plastic toy uncle Walter bought for Hessa.
![[Smile]](images/icons/smile.gif)
29 September 2002, 23:20
OverkillSaeed...!
What is the weight on the rifle that fires that new wildcat.?
30 September 2002, 00:23
PCWill it fit on a CZ action ???
30 September 2002, 04:52
RIPThose who didn't miss this baby last time around will recall that it is a dummy turned from solid aluminum and painted to mimic brass. I can't recall what caliber or cartridge designation it had. I think that is a 375 H&H next to the big dummy.
Estimating: 1.670" bullet diameter, 9.16" long case.
The 42.4 X 233 mm Mauser?
The 1670 Walterhog?
Nice doorstop.
30 September 2002, 05:30
<Per577>Firing this thing from an overdimensioned rifle action ,,either way would be suicide solution.
But if i have to guess this cartridge is the 37 mm X 240,,used by the new chinese anti aircraft.That round is even more impressive than the 35mm X 228 Orlikon round,,but their both similiar in power !!that means 370,000 - 400,000+ joules of energy !
Go get a book called "Rapid fire",,which cover all the mid-range calibers from WW1 to the present,,ranging from 12,7 mm browning to 57 mm Bofors cannon,,,really entertaining if your interested in the military stuff of course,,,and they list ballistics for each cal.The numbers cannot be compared with those of "acc reloading board" exactly
![[Wink]](images/icons/wink.gif)
30 September 2002, 18:05
SocratesPlease. Just give me the old 105mm. Works, period.
s
01 October 2002, 13:35
RogerSaeed,
I've got some mean ass ground squirrels in my back yard that need a round like this. Can my short action Remington be rebarreled for this case? HI
Roger QSL
02 October 2002, 11:25
JudyBearclaw, do you have any idea what the ballistics for that 20mm Lahti are?
If chambered in a Marlin 1895 lever gun will it be adequate for Dangerous Game
![[Razz]](images/icons/tongue.gif)
Do they make a matchking for it?
03 October 2002, 08:48
D HumbargerNRAChick
quote:
Bearclaw, do you have any idea what the ballistics for that 20mm Lahti are?
I'm looking.
05 October 2002, 20:49
SocratesA REAL big bore platform:
http://www.ussmissouri.com/The videos of her broad sides are truly fantastic.
s
06 October 2002, 04:31
<Per577>quote:
Originally posted by Bear Claw:
NRAChick
quote:
Bearclaw, do you have any idea what the ballistics for that 20mm Lahti are?
I'm looking.
Yooo !!. The ballistics for the 20mm Lahti rifle is either 2700 or 2800 fps.But i don't remember the weight of bullet( i think it was 2300 grains).
06 October 2002, 07:39
<JOHAN>Saeed
I think that your new round is made of plastic for some reason
However, fill it with lead and ask Walther to drop it on his feet
Make Walther do it properly
/ JOHAN
06 October 2002, 15:28
jeffeossothe only problem is that it's unflanged (not rimmed) and therefore wouldn't extract positively from a double..
Bet the the rifle weighs 140#, total... with 80# of that being the sissyslots.. and then PC and I'll mount it on a jeep and go roo and grumby blasting in a spotlight!!!
jeffe
07 October 2002, 11:54
<Mr MD>Bear Claw,
Where did you get that picture? I once new a military rifle collector that had a 20mm exactly like that. I believe he said it was Finnish and it also had skiis on the bottom.
07 October 2002, 14:26
D HumbargerMr MD click on this link.
http://www.ohioordnanceworks.com/lahti/l.htm09 October 2002, 16:25
SocratesI can say that in my experience, you can hit a ground squirrel at 10 miles with a 105mm cannon.
Thanks to excellent optics, the old telescopic sights allowed you to line it up, make the cross hairs match, and you had range, pull the trigger, and watch what ever was in the center of the cross hairs disappear, including the rat with a tail.
The 105 shot a 37 POUND, high exsplosive round, at about 2900 fps. It also had a lighter, 29 pound armor piercing tungstun, depleated uranium, whatever, sabot round, at 3700 fps.
While some may view this as a bit cruel, I believe it's a part of natural selection. Any animal, dumb enough to wander on to a firing range, during a full tilt, heavy armor target exercize...deserves what he gets.
s
11 October 2002, 23:30
Bubba JohnAwwwww, you guys are tooo much.
12 October 2002, 05:34
dan belisleJust a practical word of advice, never shoot a ski mounted AT rifle in a gravel pit without pegging the mounts to the ground first. You want to see road rash. - Dan
12 October 2002, 05:58
D HumbargerROFLMAO @ Dan! Maybe you just need shoes with cleats & dig your toes in real good.
[ 10-11-2002, 21:00: Message edited by: Bear Claw ]05 November 2002, 15:09
Pecos41I've actually fired the 20mm Lahti as pictured in this thread and believe this or not, I would say the recoil is about like an /06.
Impossible? Not when you consider the thing weighs over 200 lbs and is probably 6 ft tall. I didn't weigh or measure it but it took two of us to comfortably set it up on the table we shot from.
Those are indeed SKI's on the thing for dragging it around in the snow. Can you imagine trying to CARRY it up and down icy, snow covered hills?
Gun has what appears to be TWO triggers, but one is actually a bolt release. When you pull it and the action goes KA-CHUNG and chambers one of those 20mm shells...then you know the game just got serious.
The most dangerous thing and easiest way to get hurt firing this gun is getting your hand UNDER the action. Since it loads from the top...it ejects straight out the bottom. I made the mistake of resting my hand under there my second shot and have the scars to prove it.
It is one serious weapon but actually FAR more pleasant to fire than most big bore rifles. Oh, I should mention it has a pretty serious hydraulic recoil system to dampen things. It's just a big, over-grown, semi-auto rifle and with a little practice I think a reasonable shot could probably put five rounds out of it thru a car of truck cab in as many seconds or less and out to 300 yards. I was priviledged to get to play with it for an afternoon years ago.
05 November 2002, 15:18
JudyPecos,
This is what is on the website link.
"The Finnish 20mm Lahti anti tank gas-operated self-loading rifle of 1939. 10-round box magazine clipped into the top of the receiver. Lahti has a rack and pinion rotary cocking handle, a rotating muzzle brake and two bipods. There were only 1906 of this rifle ever produced.
Comes w/coffin, gunners kit,
3mag carriers, 5 mags, 9 Rd. 1 Pad w/ straps
Calibre: 20 mm Length: 240 cm
Magazine: 10 Rd. Weight: 43 kg
First $ 8.500 Second without rounds $7.500"
43Kg is 94.6 lbs. How was your's set up to get it all the way to 200lbs? Is Ohio Ordnance not supplying everything you should get for their low price of $8500?
Can someone run the recoil numbers for this gun at 43Kg and 90Kg?
Judy
05 November 2002, 17:21
Pecos41quote:
Originally posted by Sniperonthegrassyknoll:
How was your's set up to get it all the way to 200lbs? Judy
Well now let me recollect " JUDY." Like I posted above, I didn't weigh the thing. The owner was rattling off the specs while I was drooling on the gun and then he said, "Grab that end and let's set it on this table."
I grabbed the end, can't remember WHICH end since it was about 25 years ago, but it seemed kinda heavy.
Afraid my mind was mostly on shooting it and secondly was I gonna live over the recoil?
I was so excited I didn't listen to a lot of things he told me about the gun...obviously I didn't pay much attention to his warning not to get my hand under it.
But now that your link throws the weight I spouted off into question, I've looked in my limited books and found the Solothurn lists at 120 lbs and the Jap 20 mm Type 97 lists a weight of 115......so I suspect your link is correct showing this at 94 or 95lbs. (Whatever you said.)
They are NOT little guns, believe me. The photograph which started this thread is configured like the one I shot.
What is your link for your information?
If you want a rifle that KICKS, try the British Boys...which I used to own in my college days. The Lahti is a pussy cat compared to a BOYS' recoil.
Is recoil a "turn on" for you or why do you want someone to "run the recoil numbers" for you? Not real sure what knowledge you expect to gain from such an exercise since the guns recoil is managed by a nifty hydraulic system. What the gun does and what the shooter experiences have nothing to do with one another in this instance.
I thought it was madness to fire the thing off a TABLE and told the owner so, but he assured me it was "no problem" and danged if he wasn't right. I had visions of the gun coming off the table and landing on top of me but I've taken a LOT worse beatings firing off a bench rest than the 20mm Lahti dished out.
06 November 2002, 03:31
JudyPecos,
It's not MY link~it's the link Bearclaw provided for Ohioordnance. I just asked a question about if there was a problem with what was being supplied by the gun maker, geeze.
I have done business with Ohioordnance before, and not had a problem.
"Judy"
06 November 2002, 04:07
Pecos41I wasn't challenging the authenticity of the link, just asking what it was. See the diff?
And I have agreed that their listed weight was more accurate that what I thought I heard that fateful day. The rest and the parts of the gun that I
DID pay closer attention to are more vivid in my little mind.
06 November 2002, 04:11
Pecos41Duh...OK...color me stupid. I just noticed bear claw's link posted with the pict. Once again I was too busy drooling at the gun and not paying attention.
I used to have quite a thing for anti-tank guns and still get a rush at the sight of them.
Drool, drool.
06 November 2002, 04:23
<richard10x>quote:
Originally posted by Sniperonthegrassyknoll:
Pecos,
This is what is on the website link.
"The Finnish 20mm Lahti anti tank gas-operated self-loading rifle of 1939. 10-round box magazine clipped into the top of the receiver. Lahti has a rack and pinion rotary cocking handle, a rotating muzzle brake and two bipods. There were only 1906 of this rifle ever produced.
Comes w/coffin, gunners kit,
3mag carriers, 5 mags, 9 Rd. 1 Pad w/ straps
Calibre: 20 mm Length: 240 cm
Magazine: 10 Rd. Weight: 43 kg
First $ 8.500 Second without rounds $7.500"
43Kg is 94.6 lbs. How was your's set up to get it all the way to 200lbs? Is Ohio Ordnance not supplying everything you should get for their low price of $8500?
Can someone run the recoil numbers for this gun at 43Kg and 90Kg?
Judy
Back in the days before GCA1968, these anti= armorwepons were advertised in all the U.S. gun mGS.. $99.99 got the gun and mount, individual rounds were about a buck each and 100 rounds went for about $75.00. Fun was has by a lot oif us untiol the State of Kalifornia banned them as a fire hazzard about 1971
06 November 2002, 04:26
D HumbargerI know Bob Landis (owner of OO) personally. A finer fellow you will not meet. At one gun show in Huston Bob had a K98K sniper that I was drooling over & I had a K98K Ghost model that he wanted, but I didn't have my gun with me. So what Bob do? He says "go ahead & take the sniper & send me the Ghost when you get home. VERY good man to deal with.
06 November 2002, 08:43
Pecos41Richard10X - You are exactly correct. That was back when I bought my BOYS Anti-Tank rifle. Ammo was buck a round. Luckily it was NOT the sort of rifle you wanted to shoot all day! Half a dozen rounds at a time with it and you were pretty punch drunk. Them were the days!
I came within an ace of buying an UNISSUED Thompson sub with two extra mags for 79$ plus transfer stamp. I don't think I'll ever forgive myself for going down another route!
Sigh.