8.2X57 mauser
Any info on 8.2x57 mauser rimless cartridge, and the rifles it was used in.
Thanks.
Thanks.
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8.2mm = .320. Most of the Mauser rifles & cartridges made after 1905 used .323 diameter bullets.
If you could be more specific about the 8.2mm marking, it would help in identification?0 -
The 8.2 x 57 is a .338" bore. It came about because of a short lived ruling that Germany could not make fire arms in military specs. 
can't get pic to load.
go here....
http://iaaforum.org/forum3/viewtopic.php?f=8&t=13749
Here's an old "NON" sako box0 -
[:I]Pics of it on Internet. Always of sako manufacture. Nothing in cartridge of the world.
So this was another attempt to get around Treaty of Versailles? Who came up with the idea to ban a particular size of cartridge? Someone go around and check your sporting rifle conversion? And a 8mm is really a 7.9 on how you look at it.
Need to resolve this. Is a 8.2 just a marking to designate the .323 or actually
A bigger round? Copy from Internet/////// I just came back from Cabela's in Omaha with a new toy in my hot little hands. They had a 98 Mauser Guild rifle in 8x57 that someone had reblued and painted, yes painted the stock on. I thought for the price $250 that I couold refurbish the rifle and really make some money as the bore was absoutly mint. The gun had set triggers and a full 26" barrel. Well as soon as I got it home i went to slug the bore and see if it was a 318 or a 324. The slug dropped straight through and landed on my foot, the bore was 338 and perfect all the way through! Now I am confused. I took the action out of the stock and did a chamber cast and as I did I see that the bottom of the action is marked 5-25 8.2 mm. So I cracked the books...
After 1918 Germany could not have any guns of military caliber so if you had an 8x57 mauser you had it rebored to 8.2 to be legal. This only lasted till 1930. Then Germany told the World to KMA and the Treaty died. Ammo was last made in Germany in about that time p/////end of copy.0 -
Here is another item about it, which may explain the use of 8.2 mostly in Finland.
""These are both designations for the 8mm Mauser cartridge. 8.2 x 57 was first used by Sako to distinguish between cartridges containing the larger .323" bullet from those with a .318" bullet. This had been the source of confusion for over a century. The designation is seen primarily in Scandanavian made rifles. The term 8mm Mauser is commonly used in the USA and elsewhere. I have also heard an unverified anecdote that the 8.2 designation was originally adopted by Sako because the Finnish game laws required a caliber larger than 8mm for moose. The .323 bullet of the 8mm Mauser cartridge is actually 8.2mm, so that's what Sako stamped on the barrels, making it legal for moose.""0 -
quote:Originally posted by jaegermister
[:I]Pics of it on Internet. Always of sako manufacture. Nothing in cartridge of the world.
So this was another attempt to get around Treaty of Versailles? Who came up with the idea to ban a particular size of cartridge? Someone go around and check your sporting rifle conversion? And a 8mm is really a 7.9 on how you look at it.
Need to resolve this. Is a 8.2 just a marking to designate the .323 or actually
A bigger round? Copy from Internet/////// I just came back from Cabela's in Omaha with a new toy in my hot little hands. They had a 98 Mauser Guild rifle in 8x57 that someone had reblued and painted, yes painted the stock on. I thought for the price $250 that I couold refurbish the rifle and really make some money as the bore was absoutly mint. The gun had set triggers and a full 26" barrel. Well as soon as I got it home i went to slug the bore and see if it was a 318 or a 324. The slug dropped straight through and landed on my foot, the bore was 338 and perfect all the way through! Now I am confused. I took the action out of the stock and did a chamber cast and as I did I see that the bottom of the action is marked 5-25 8.2 mm. So I cracked the books...
After 1918 Germany could not have any guns of military caliber so if you had an 8x57 mauser you had it rebored to 8.2 to be legal. This only lasted till 1930. Then Germany told the World to KMA and the Treaty died. Ammo was last made in Germany in about that time p/////end of copy.
The markings on the above rifle, "5-25 8.2 mm". Are common German Proof Marks. They translate, to a proof date of May 1925. And a bore diameter of 8.2mm, which as i have noted above is .320.
As the groove/ bullet diameter is always bigger than bore diameter. I was perplexed as what cartridge the rifle was chambered for? As the owner slugged the bore at .338, it wasn't a common metric caliber.
Went through COW and the only cartridge that fits, is the 350 Rigby Magnum.
Incidentally the cartridge the Germans used, to circumvent the requirements of the Treaty of Versailles. Was the 8 X 60 Mauser. The wily krauts, rechambered their 8 X 57 Mausers to 8 X 60. The DA inspectors that were in charge of enforcing the treaty, didn't have a clue. That a controlled feed rifle like a Mauser, could feed and function with a 8 X 57 even if it had been rechambered to 8 X 60.0 -
Ok so we can assume then that the 8.2 is an attempt to correctly identify the .323
8x57 rimless. Although historically correct , I find it strange that germany was not allowed to manufacture a particular Caliber size, and that increasing the chamber length of a sporting rifle got you around the issue. Did the world fear the people or the gun?0 -
" I find it strange that germany was not allowed to manufacture a particular Caliber size, and that increasing the chamber length of a sporting rifle got you around the issue"
Much of Germany's production lines had been destroyed but not all. 8x57 was their military round so the rest of the world would expect that any resurgence of military activity would begin with that cartridge. In addition, Germans who didn't want the war to end would be easier to dis-arm if the most common ammo was banned.
How is 8.2x57 longer than 8x57? There was an 8x60 that I think was a "by-pass" of the regulation.0 -
quote:Originally posted by jim_lemay
Babun; Box in your post is 8x56 Mannlicher Schoenaur which had 0.323" diameter bullet.
yes sir, just posted that pic to show the "8.2" that is hardly seen.0 -
Like others I searched using google for "8.2X57mm Cartridge" and got 12 hits and one image and no useful information.
Okay, here's what I know
7.92X57mm => the cartridge is for a rifle with a bore diameter across the rifling lands of 7.92mm = 0.312 inches and bore diameter across the grooves is usually plus 0.008 to 0.010 inches which equals 0.312 + 0.010 = 0.322 inches maximum which also implies the bullet's diameter = 8.17 mm or approximately 8.2 mm).
I don't believe there was ever a 8.2X57mm commercially made cartridge for any manufactured rifles with a bore diameter of 8.2mm (0.323 inches) measured across the rifling lands made to be used with a bullet of 0.333 inch diameter.
I agree with babun who showed the 8.2X56mm Mannlicher Schoenauer (MS) cartridge box and pointed out that like as in the case of the 8mm Mauser rifles, the 8X56mm MS rifles had different bores made to use with bullets diameters of 0.318 and 0.323 inches.0
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