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I am thinking of having a custom rifle built using a Martini action..are these actions equal in strength to modern actions? I plan on having a cadet action and fitting a .256 Win.Mag barrel to it. Am I making a mistake in choosing this single shot action? Thanks all for your input.   Flasks from Pa.
 

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Flasks,

A while back there was an article in one of the shooting magazines about a custom .17/44 Mag on a Cadet action.  This was a pet project by Steve Herrett of Herrett Stocks.  Great looking rifle.

I'm certainly not any kind of expert, but one might assume that the Cadet would handle the pressures.......although, I'd probably take the action to a good 'smith and have it checked before using it.

Lobo in NM
 

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Flasks,
There was an excellent article about the martini rifles in Hunting Horizons back in '93 or '94.  I think G. Sitton wrote it and described the rifle and it's capabilities very well, though it's been a long time since I've looked at it.  If you would like a copy (I think it was titled "Rook Rifles", send me a PM, and I'll try to get a copy to you.

Hope this helps.
 

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The Hog Whisperer (Administrator)
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Many black-powder Martinis (577-450 etc) were converted to fire smokeless .303 British.  

So.... the basic strength seems to be there.  I am not aware of any particular variations that would be better/worse than average.  Definitely have it looked over by someone who knows what they are doing.  I confess that I do not know what a Cadet action is, sounds like it could be somewhat smaller than a 'regular' Martini?  I'd first look at what the gun is currently chambered for and make some calculations based on that (pressure * area of case head).
 

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Hi Don,
Did you give up on the Sharps?
How's it shooting?


Be well,

Chris
 

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.256 Win Mag is an o.k. cartridge but you'll have all sort of fun extracting/ejecting the cartridge.
Martinis were built with a rimmed cartridge in mind, hence effectiveness of the .310, .303, .22 Hornet & .22LR in these rifles.
The big action, the .500/477 Martini Henry is also for the .500/477 rimmed cartridge.
Another possible solution using a case like the 7x65R Brenneke & necking it down to .257.
It may or may not give you the performance you want.
Sadly, there aren't many regular hi-performance rimmed cartridge in .257.
The Europeans like a number of 7mm to 9.5mm rimmed cartridges for drillings & double rifles but those are a bit too big for you.
But then if you're willing to spend the money you may overcome the extraction/ejection problem.
Does seem a little beside the point though.
Just IMHO. :)
Andy P.
 

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The Troll Whisperer (Moderator)
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I used to have a 25-225 Win Ack Imp, chambered in a T/C Contender carbine bbl. This is a wildcat that necks up the .225 Win case to the .257. Being a rimmed case, it worked quite well in the T/C.

Brass is available from time to time as W-W will make special runs of it.
 

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kombi1976 said:
.256 Win Mag is an o.k. cartridge but you'll have all sort of fun extracting/ejecting the cartridge.
Martinis were built with a rimmed cartridge in mind, hence effectiveness of the .310, .303, .22 Hornet & .22LR in these rifles.
The big action, the .500/477 Martini Henry is also for the .500/477 rimmed cartridge.
Another possible solution using a case like the 7x65R Brenneke & necking it down to .257.
It may or may not give you the performance you want.
Sadly, there aren't many regular hi-performance rimmed cartridge in .257.
The Europeans like a number of 7mm to 9.5mm rimmed cartridges for drillings & double rifles but those are a bit too big for you.
But then if you're willing to spend the money you may overcome the extraction/ejection problem.
Does seem a little beside the point though.
Just IMHO. :)
Andy P.
Kombi-you mean the 577/450 Martini cartridge. Kombi is right about the rimmed cartridges. Rimless can be done, takes a lot of smithing. I have heard a Martini full size action in good condition is as strong as a Ruger #1.
 

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kombi1976 said:
.256 Win Mag is an o.k. cartridge but you'll have all sort of fun extracting/ejecting the cartridge.
Martinis were built with a rimmed cartridge in mind, hence effectiveness of the .310, .303, .22 Hornet & .22LR in these rifles.
Andy P.
Hey Andy; P.O.I. The 256 Win Mag IS a rimmed ctg. Basically it's a .357 Rem Mag. necked down to 257. Originally chambered in the famous Ruger Hawkeye.

Flasks, Your project sounds like a sweetheart to me.
Pepe Ray
 

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Like and use Martini actions, but not real sure what size action the original poster had in mind...basically can call them the "big one" and the "little one" (Cadet action) although there were some other variations.

The Cadet action has some diameter limitations (the barrel shank just isn't all that thick) and length limitations...have to come in at an angle when chambering longer cases. While I've seen them chambered for the .44mag., would be a whole bunch more comfortable with SMALLER diameter cases...will say this, the owner of that .44mag. has had it a long time and still has all his fingers and both eyes. The .357-ish diameter seems about perfect...from .222Super (and Austrailian vesion with a rim) on down to the .22hornet (and the various rounds based on that).

The big action is better suited to any of the larger rimed cases, but would still stay away from the excessivly long ones.

Getting a scope mounted in the right place for you to actually use, puts the occular lens just about over the dropping block; fat fingered guys sometimes get a bit fustrated. Not a big fan of the reciever modifications that lower the right wall, but others use it. Do have to plan out the mount and the scope (with attention to the occular and the power ring of a variable)...may have to mount it a bit higer than expected, or hunt scopes with the smaller rear lens.
 

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I'm actually looking at building a martini custom myself using the 577/450 action(thanks for the correction, Carignan ;) ).
My issue has been finding a rimmed cartridge in the .35 to .375 cal range with the same performance as a 35 Whelen, my original choice before I ran into the rimmed issue.
I've had recommendations like the 9.3x62R & 9.3x74R Mauser rounds but some have said that a Martini would have trouble loading & extracting the Mauser because of its length.
What's the consensus?
Cheers & God Bless
Andy P :cool:
 

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The 35 Whelen is a good cartridge. If a guy was a gunsmith and knew how to machine the bits, the Whelen might even be made to work-I have seen the modifications to take rimmless cases before.

I think on another thread 356 and 348 Winchester rounds came up. While not as powerful as the Whelen, could be loaded heavier in the Martini than the Winchesters they were designed for.

The case length is an issue. From what I understand a straight walled case a little longer than 2" will still make the bend. Bottle necked cases(depending on how dramatic it is) will make the bend into the chamber to 3" or so.

I am not familiar with those mauser rounds-are they rimmed cases?

If I ever get a Martini-Henry I will keep it in 577/450 unless the barrel is bad.
I have seen sporters in the 500/450 and 450/400 Express cartridges. A Martini-Enfield in 303 British would also be a welcome addition.
 

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The Troll Whisperer (Moderator)
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Sounds like a natural for the .375 Winchester - rimmed and straight walled case of 2.020" length. A very nice round in my T/C Contender carbine.
 

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I heard of a wild cat like the 6.5/303.Supposed to be a screamer according to our gun shop Ellwood Epps.com.
Since some actionswere 303 , My guess would be that there would not be much work to turn out a rifle based on the 303 B case.
The 310 cadets were rechamberd into the 357 M. or into a Roo gun by the Aussie'sI read some where.
 

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Don't worry, guys, I wouldn't butcher a perfectly good .577/450 or .303 martini for the sake of a custom rifle. I can pick up an action for between $300 & $400 so there's no issue there. The Mausers are rimmed, hence the R at the end of the designation. Of course the coolest fun in terms of a round would be .375 Flanged Magnum H&H(rimmed instead of belted) but the cases cost a fortune & I don't think they'd have a long life, much like belted .375 H&H cases don't.
Anyhow, I'll have to see what is most sensible & flexible. It's a pity the .348 Win is such an unusal projectile cal. It's specs are very good.
 

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Harry, I've never seen any data or even heard of 6.5/303. The common rounds were a few 22 based rounds like 22/303 Swift(not to be confused with 220 Swift), 303-25 & 270/303. Most were built on SMLE actions & had the low pressure limitations these actions have. The 303-25 is o.k., I own one, but it's obsolete with the rise of the .243 & the 270/303 is simply too heavy a bullet to sucessfully get a decent accurate range, at least in a SMLE action. If you want to play with custom dies & necking go ahead but the 6.5 Swede with or 260 Rem will serve you far better. Perhaps a new martini or M77 action would give you the safety to up those loads. Most roo shooters, however, use .223s becuase the ammos cheap & the round is very accurate.
Cheers & God Bless
Andy P
 

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The .310 Cadet is an ideal little action to base a 256WIN on ,over the years I have owned one & several of my mates still use martinis in this cal.I have also had the chambers& barrels remmed out to 357mag & recently I have seen a cadet re chammbered to 357max
 

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The 303-25 is o.k., I own one, but it's obsolete .
Kombie .I still use a 25-303 & there seems to be some thing of a revival with the Old girl.Your quite right about .The .223 being probarly the most popular Pro Roo shooting cart .These days! When I first started back in the dark ages!We all used 25-303s then 243/6mm,257roberts became the crase,from there it became Raffities Rules 22-250 .222 .17 .It was really only after the Painfull transition from pet food to human consumption that the .223 came to the front of the pack.As it is quite adiquate for Neck/head shots out to 200mtrs
 
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