Can one make 11.2x72 Schuller brass from a common round, or is this round just graveyard dead? Just curious.
Matt

404 Jeffery can be used.

I don't have a clue however if 404 can be used then I would assume that the rum cases could work

quote:

Can one make 11.2x72 Schuller brass from a common round

Hum, good question.
Case length = 2.815”,
Base diameter = 0.535”
Groove diameter = 0.409”
Rim diameter = 0.469”
Definitely need to slug the chamber for more exacting dimensions.

RUM brass always seems to be out – plus the base spec diameter is 0.551”, likely 0.548” range actual, so perhaps 0.013” needs removing in base area of the brass.

404 Jeffery brass is closer – plus the base spec diameter is 0.545”, likely 0.542” range actual, so perhaps 0.007” needs removing in base area of the brass.

.375 H&H Basic Brass (cylinder brass) might be the best bet – belt spec is 0.532” which may be in the actual manufacturing range of the Schuller brass base diameter anyway. Two to three full powder loading should smooth the belt/body junction so that only a thin line remains. Best rational for this brass is zero machining of the base area so no degradation of the case strength – plus the basic brass is good for 62366psi Piezo PMap whereas the Schuller is spec’d at 47862 Cup PMap which is likely <55000psi Piezo PMap. This will give you stronger brass which is good for longevity – plus the H&H Basic Brass is much cheaper in bulk than either the RUM or Jeffery brass.

Regardless the RUM, Jeffery, and H&H Basic Brass will all require machining of the smaller groove and rim diameters.

Just my 2¢ on the subject…

There's always the option of opening the bolt face to eliminate the rebated rim. Pierre van der Walt talks about that in 'African Dangerous Game Cartridges'.

Jim
rum tends to be .545 .. .

belted mags are roughly 510 with belt trimmed off ..

(this is not slamming jim)
it is INSANE to push out case walls on a belted case to the same diameter of the belt .. -- and then to run at pressure, once the walls are blown out the belt is a very bad idea.

if "ruger basic" was available, it is .532 casehead, unbelted

-.013 it a "it aint hard" operation -- its exactly as hard as removing .007, once in a lathe.. turning a dial .003 more is nothing, right?

"why bother" returning the rim ... getting another extractor and using a rum case holder means ZERO additional work on the brass, with a 1 hour job to get the extractor replaced and "correct" ..

so, a draw die set would cost about $150 .. if you have a lathe, don't worry about it.. change out the extractor, and you have a functional rifle, with the minimum of work

quote:

Originally posted by Jgrabow6493:
404 Jeffery can be used.

I don't think so !

I have the rounds in my hands , there are a lot of differences !

You will need original brass , very difficult to get today , and the same problem for bullets !

Matt,
you can join the 11.2x60 Shuler club!
So far I'm the only one in the club though
I have the reamer, dies,brass made up and all. Still waiting on McGowen to get my barrel done to get started. The brass I make from 458 win mag. I have a collet chambered for 458, so it holds it nicely while turning off the belt and rebating the rim.
Bullets, Woodleigh, Hawk, and cast are where I am at. I keep thinking about some swage dies to turn berdan 7.62x39 brass into cheap bullets as they are .440 already.

Must be some brass around, the link below has a packet for sale here in NZ.

I would always be nervous if turning down the base of any cartridge to try and make fit into a smaller chamber. No problem with turning a rim down to a smaller diameter as this is not the area critical for strength, or for removing a belt from a magnum case such as when converting 378 Weatherby brass to 416 Rigby, but the base is a critical area. To turn a base down on a case you definitely need to keep back from the point where the case wall meets the base and depending on the taper of the parent case this may still not allow it to fit a smaller base chamber.

http://www.trademe.co.nz/sport...uction-852113346.htm

I use cases from Wolfgang Romey in my original Schüler rifle 11,2x72 .

My problem are the bullets ! At this time only the 401gr SP bullet from Woodleigh is available .

I shot a buffalo with this cartridge and this bullet . Very difficult to have a opinion about it . It's not the class of a 404 Jeffery or a 416 Rigby , and the rebated rim is not the best for a quick reloading !

Grandveneur,
why do you say it's not the equell of the .404 or 416?
It is a 400 grn bullet at 2400 fps, slightly less SD, but with Woodleigh bullets I wouldn't worry.

A 400gr bullet at 2400 fps is a theory !

In the practice , with a AOL of max. 85mm because of the size of the magazine of the original Schüler rifle , you have with a deep sitting bullet not enough place for a lot of powder . The Schüler rifle are made on a Standart Mauser system and not on a Magnum system . This cartridge is a compromise , like the 10,75x68 .

A 400gr bullet at about 2200 fps is realistic !

I am only going by a Harold Wolf article, in which he said early ammo was 89 mm long.
He advocated starting with .404 load data to load the shuler.
But, 2200 fps with a 400 grn has long proven to be a good load in the 11.2, 404 and similar rounds.

Here are some loads showing 2400+ fps.

http://www.loaddata.com/member...r%20Reloading%20Data

Thanks for all the info fellas! I do not own a rifle so chambered. I have come across a couple of old German made rifles chambered in this round over the last couple of years, and wondered if it was even possible to feed such a rifle. Now I know.
Matt