what on earth is the 6.35x59 cartridge - Shooters Forum
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Old 07-12-2011, 05:08 PM
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Join Date: Jan 2011
Location: minneapolis
Posts: 40
what on earth is the 6.35x59 cartridge

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okay so it may be the case that I'm NOT THE MOST WELL VERSED GUY in the world of cartridges, but I don't have a clue what a 59 case would be from.

secondly dose any one know anything about this cartridge. I'm looking for uses foer a gun that a "gunsmith" re-barreled. unfortunately he used a 257 barrel where he should have used 264 barrel.

so now I'm re-cambering, or barreling yeah!

I really only interested only in starting a thread about the 6.35x59. there is already plenty if info out there about the Bob so please lets not go that direction.

hear are two link's, where I found the cartridge.



any help would be greatly appreciated.
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Old 07-12-2011, 05:14 PM
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my best guess is it's a slightly shorted 30-06 case. the 06 case ought to be 63mm, so why the shortening. could it lose 4mm in length during neck down.
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Old 07-13-2011, 01:01 AM
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Seems its a 30-06 parent case (or 25-06, 270) shortend since the case head is .473. Might be designed for a specific legnth action where the 25-06 would be too long and still offer an increase over the .257 roberts.

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Old 07-15-2011, 12:40 PM
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Leave it be

Hi Peder 1979.
I think you better leave things be. 6.35 is the metric size for our .250 bore, or .257 groove diameter. You will need a G.S. to look at this puppy. It may be someone's take on the old 25 Neidner. This was in between the 257 Rob'ts, and the 25-06 Gov't. The logic was that with the powders they had in the 1930's, the Neidner was the ideal capacity for the .25 bore. It should still be pretty close in capacity to a 257 Rob'ts improved, but not interchangeable with it. The 25 ACP is still called the 6.35 Browning in Europe. Whoever did this one up, may not have had the rights to name it the 25 Neidner, in the same fashion that Mr. Gebby held the rights to the 22 Varminter. So everyone else went around him and called it the 22-250. Your smokepole may be just an end run around the Neidner name too. But I don't see where you mention what action you have it chambered in. There are some intermediate M-98's that won't quite take the 62mm long cartridges like our 270 Winchester. So a 25 Niedner knock off would be a good compromise. So, you may have an American wildcat cartridge with Euro metric nomenclature stamped on it's barrel. You also have a much better shoulder angle than a 25-06. And in the old days, the 25-06 was a good re-bore proposition, for shot out 220 Swifts, if they were chambered in a long action.
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Old 07-10-2013, 10:31 PM
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Some observations/Queries:
6.35mm is the European Designation for .250 Groove diameter Caliber.
6.5mm or 6.52mm should be the European designation fo r.257 Groove diameter Caliber.
Wouldn't the old 25 Stevens Rim Fire be a 6.35mm cartridge?
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Old 07-11-2013, 04:01 PM
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The 6.35x59 was designed by Tony Winters as a wildcat in the late 60's and early 70's. Designing occurred prior to the wildcat .25-06 being commercialized by Remington. At the time the only .25 cal on the market was Weatherby's .257 Wby, the .250 Savage and .257 Roberts having been discontinued as commercial cartridges.

The parent case is the .270 Winchester.
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Old 07-15-2013, 09:10 AM
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25 ACP equals the 6.35 Browning in Europe

ChevWilliam, I've also put metric numbers on a couple of my wildcats. I used 8mm for what is 7.92mm, and I used 10.6mm for what is really something a bit different. But is definitely is the .416 bore.

Now the 270 is really a .277 groove, and the .416 is actually the groove diameter. My point is the bullets may or may not exactly match the nomenclature. All lands and grooves aren't created equal. The little 25ACP has different land to groove depths than the 25-06 Rem.. The 22 RF has different patterns than any modern 22 C.F.

For the most part, this is done to illustrate the difference between the inventor's new development, and earlier numbers. So we have the .277 Titus, the 280 Ross, and the 280 Remington. Each of these three use different caliber bullets.

As confusing as this is, it's better IMO, than having a 30 Remington and 30-30 WCF, or a 32 Remington, and 32 Win. Special, which use the same bullets, have the same power, and are not at all interchangeable. The 32 Rem will not chamber in a Marlin lever 32 Win. Special Chamber, as the case head is a wee bit too large. The rim of the Winchester 32 Special, or the earlier 32-40 C.F. case prevents either from chambering in anything made for the rimless 32 Remington.

If this rifle in question was made here in the U.S., then I'm betting it has a standard .257 groove diameter barrel. But if in doubt, it should be slugged or a cerro-safe casting made to be sure. As I noted in another post, I once saw a Marbles' insert chamber for a 25-35 Win. which held a 25 ACP case in spring steel fingers ahead of the insert, so that the little pistol case filled the neck of the rifle's chamber.

I'm sure there was gas cutting, but a fur trapper may have used this to prevent damage to pelts, from a full powered Winchester rifle cartridge.
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