Showing posts with label Cold War Rifles. Show all posts
Showing posts with label Cold War Rifles. Show all posts

Thursday, April 14, 2022

Mise à Niveau

So, set the wayback machine for the summer of 2007, when I was still living in Knoxville, right after I left Coal Creek Armory. Having some spare time on my hands, I drove over to Nashville to spend a few days at Oleg Volk's place, hanging out and providing an eclectic selection of guns for photographic purposes.

The first morning there, Oleg and a few others were heading out to go do some shooting. Having just finished a good long stretch of six-day workweeks at an indoor range, I begged off. "I'll just chill here and read, if it's all the same to you guys. If you want to shoot anything I brought, feel free to drag it along."

Among the guns they elected to take was the MAS-49/56. I handed Oleg a couple boxes of Portuguese FNM-branded full metal jacket ammunition and told him to knock himself out.

He asked where to hold on the target at a hundred yards.

"How the hell should I know?" I replied, "I've had it a couple years, but never got around to shooting it."

I spent a pleasant couple hours in silence with a book, and when the crew came trooping back in from the range, Oleg had an unhappy look on his face and was nursing his right thumb.

"What happened?"

"The rifle tried to break my hand."

Yikes. The internet wouldn't be happy with me if I broke their photographer, no matter how indirectly.

It turned out that Oleg let the bolt fly forward to chamber the first round, and the rifle promptly slamfired, kicking up a gout of dirt a few yards in front of the line and pranging the base of Oleg's thumb with that big round nylon knob on the MAS charging handle.

A bit of research on the internets turned up the fact that this is what we would call a Known Issue with some ammunition, since the MAS has a large, heavy firing pin meant to deliver a healthy lick to a hard French military primer.

Y'know how the free-floating pin on an AR will lightly dimple a primer when you chamber a round? Same thing, but that's an AR firing pin up top and the MAS pin below...

The two solutions for this I uncovered at the time were to either have a 'smith lighten the factory pin, which seemed pretty iffy, or to track down one of a small number of titanium firing pins someone had allegedly made in unicorn-like quantities a few years earlier.

The importance I assigned to this task can be assessed by the fact that I finally got around to it last month.

I mused about it on Facebook, and Ian McCollum... because of course he would know ...recommended a spring-loaded rebounding pin from Murray's Gunsmithing in Texas, and said they had worked fine in his blasters. So I ordered one. (With my own money, Mr. Federal Trade Commission.)

The other day I went and installed it.

To do so, first you lock the bolt to the rear and remove the magazine, ensuring the weapon is clear.


Next you let the bolt go back forward. This step is important.


Now, look at the rear of the receiver. See that rectangular button doohickey? Put your thumb on the serrated top and press downward and hold it...


While holding that button down, grab the rear sight/receiver cover assembly, slide it slightly toward the muzzle end of the gun and then CAREFULLY lift it up and away from the rifle. Be careful here, because it is under a lot of pressure from the action spring. The spring will probably come away from the rifle along with the cover.


Next, pull the bolt carrier assembly to the rear and lift it out of the receiver...


The bolt will just drop out of the carrier. From there it's a simple matter of pulling out the old pin and replacing it with the new one.



Reassembly is pretty straightforwardly the reverse of disassembly. I will note that the "sproing factor" of that action spring is hard to overstate; that bolt and carrier assembly is small and light when you consider the power of the 7.5x54mm cartridge; it doesn't have a lot of inertia on its own so the spring is doing a lot of work. Getting that receiver cover back on with the spring all compressed back into its nest definitely takes all of both hands.

Now it's ready to use with Prvi Partisan ammunition and the thumbs of America are safe!

.

Monday, May 12, 2008

MAS-49/56: End of an Era.

In the late 19th and early 20th Centuries, France was blessed with a creative and prolific arms industry, as forward-thinking as any in the world. Two French innovations alone completely changed the nature of land warfare. First was the hydraulically-buffered quick-firing field piece, which allowed cannon to fire repeatedly from the same position, without rolling backward under recoil, while their crews sheltered behind an armored splinter shield mounted directly to the gun’s carriage. The second innovation was just as significant.

Experimenting with new types of propellant yielded a high-energy powder that burned cleanly, without the barrel fouling and attendant white smoke clouds generated by the black powder that had been used in guns for the last half-millennium. The new powder allowed much higher velocities, especially from the smaller-diameter bullets made possible by the lack of fouling. The higher velocities, in turn, demanded that the soft lead of the bullets be encased in a harder metal jacket to protect them from erosion during their passage down the barrel.

Combined with recent advances in breechloading magazine-fed rifles, this meant that the French infantry could be equipped with a rifle that shot further, with a flatter trajectory than their foes; a rifle that didn’t need to be cleaned as often, and which didn’t emit a cloud of smoke on firing that would simultaneously give away the shooter’s position and obscure his vision of the battlefield. Overnight, every other army on the planet found themselves equipped with yesterday’s technology.

Unfortunately for the French, they had a bureaucracy that was as hidebound and penurious as their designers were innovative. For the sake of both cost and rapidity, the new medium bore smokeless cartridge was to be chambered in a rifle that was basically an adaptation of the tube-magazine Kropatschek already in use by the French marines. Additionally, the new 8mm smokeless cartridge would be based on the case head dimensions of the current service round, the black powder 11mm Gras. Authorities reasoned that, in case of emergency, this would allow existing single-shot Gras rifles to be rechambered for the new round by the simple expedient of fitting new barrels. Thus, the cartridge for the new M1886 “Lebel” rifle looked like an incense cone; sharply tapered from its fat, rimmed, black-powder-derived base to its small, 8mm jacketed bullet.

This decision was to haunt the French arms industry for the next fifty years because it totally hamstrung all French efforts in the next phase of small arms development: self-loading firearms. With the advent of the clean-burning, high-pressure smokeless round, arms designers around the world began coming up with ingenious ways to harness its power to not only propel the bullet, but to operate the gun itself. French designers came up with automatic designs, too, including some of the earliest self-loading shoulder-fired rifles, but were stymied at every turn by the heavily-tapered cartridge with its wide rim, both characteristics anathema to reliable function in a self-loading weapon.

All through the Great War, French units suffered with inadequate machine guns. In the period after the war, the government finally threw up its hands and consented to the development of a new cartridge specifically for machine guns, the 7.5x54mm. The new round was ultra-modern, with no rim, a moderate case taper, and a short overall length. Design teams at the St. Etienne arsenal immediately set to designing an autoloading infantry rifle to chamber the new machinegun round.

They had a good base to work from, since many of the mechanical ideas familiar to students of modern automatic military firearms had first seen the light of day in failed French designs of the first decade of the 20th Century, from tipping bolts to direct gas impingement. Sadly, however, the bureaucratic cloud they labored under was a dark one. With Europe still in the grip of the Depression and the French government still dreaming Maginot dreams, the self-loading rifle program was a low priority and was still in its larval stages when Guderian’s panzers slashed across France.
Fusil MAS-49/56. Photo by Oleg Volk.

After the second War to End All Wars, development resumed and the first self-loading rifles were issued to the French army. First was the MAS-44 in limited numbers, and then came the MAS-49, its definitive issue version.

A handy, compact weapon, the MAS-49 was roughly the same size as the contemporaneous Soviet SKS. Also like the SKS, its prewar heritage was evident in its elaborately machined steel receiver, designed before metal stamping technology had become a tool in the gun maker’s box. Unlike the SKS, it fired a full-power round, with much the same ballistics as the later 7.62x51 NATO, the famed .308 Winchester.

A blast of gas tapped directly off the barrel was directed against the face of the bolt carrier, moving it backwards and causing it to tip the bolt, unlocking the lugs. The bolt traveled to the rear, ejecting the spent round before returning forward under the impetus of the receiver-mounted recoil spring to strip a fresh cartridge from the ten-round detachable magazine.

Rather than a catch in the magazine well engaging a detent in the magazine body, the mag itself held its own latch, a vertically-oriented alligator clip-looking apparatus, for some unknown Gallic reason. As an alternative to inserting a fresh magazine, charger guides were machined into the top of the bolt carrier, allowing reloading or topping up from five round stripper clips. The safety was an ingenious piece that lay alongside the trigger mechanism, pivoting fore and aft, so that when it was in its rear, or “on”, position the trigger finger of a right-handed shooter would be prevented from entering the trigger guard normally, letting the shooter know even in the dark and confusion that his weapon was on safe.




LEFT: The trigger-blocking safety of the MAS-49/56. Photo by Oleg Volk.








In the mid-1950s, as Soviet bluster led the world to fear a showdown in Europe, Western armies began casting about for ways to increase the firepower of their outnumbered infantry squads, as well as giving them increased anti-tank capabilities. The US Army developed a 40mm grenade launcher to be issued at the squad level, as well as beginning to develop disposable tube-launched antitank rockets to be issued as needed. The French, different as always, revitalized the old technology of the rifle grenade. By outfitting every rifle with a launcher for rifle grenades and by making a mix of projectiles available, each individual infantryman could be a short-range artillery piece, bunker buster, or tank hunter as the situation warranted.

The resultant rifle was typed as the MAS-49/56. It was shortened slightly from the previous MAS-49. The wood of the stock was cut back somewhat, and a sophisticated ladder-type grenade sight was fitted and a gas cutoff valve was added. A launching adaptor was attached at the muzzle that, by means of an elaborate system of ports, doubled as a muzzle brake. A spring-retained sliding collar that controlled how deeply the grenade socketed over the muzzle slid fore and aft over a series of numbered detents indicating the approximate range of a grenade at that setting.

RIGHT: Grenade-launching paraphernalia. Photo by Oleg Volk.







Taken as a whole, this product of the 1950s was the ultimate evolution of the prewar semiautomatic infantry rifle. Robust, reliable, firing a potent round, and able to serve as its own short-range artillery or antitank gun, the MAS-49/56 was a masterpiece of its generation of small arms. Sadly, thanks to the delay imposed by the French military establishment’s embracing of the Lebel round sixty-some-odd years prior, the 49/56’s generation was long gone before it even arrived. Armies around the world had gone over to fully automatic rifles with larger magazine capacities and simple, stamped construction while the French were still catching up to the revolution they’d started. With the exception of some colonial brushfire wars in Africa, the tide of history flowed past the anachronistic French rifle.

In the 1990s, large surplus stocks were imported to America as the French began cleaning out their arsenals. Many were subjected to less-than-adequate conversions to .308 by Century Arms, giving the rifle an undeserved reputation for unreliability in the hands of American sports shooters. For the rifles left in the original 7.5x54mm chambering, a different fate was in store: Surplus stocks of 7.5, never common to begin with, soon dried up, leaving commercial ammunition by FNM and others as the only available fodder. Commercial ammunition has soft commercial primers, and the 49/56 design is, as are many other military rifles of similar vintage, completely innocent of anything resembling a firing pin spring, With the heavy firing pin, designed to reliably detonate hard military primers under filthy battlefield conditions, free to fly forward under inertia, slamfires with the commercial ammunition were endemic, leading to a brisk cottage industry in titanium firing pins, lightening of original firing pins, and retrofitting of firing pin springs.

While not ubiquitous, the MAS-49/56 is still a fairly common sight at gun shows. Prices range from ~$125 for an ugly .308 conversion to just north of $300 for a cherry example in the original caliber. Commercial 7.5x54 MAS ammunition is loaded by FNM in Portugal and Prvi Partizan for the “Wolf Gold” line. All things considered, this is a bargain for a lightweight, compact, hard-hitting rifle that represents one of the pinnacles of a short era in military small arms design.

Tuesday, July 10, 2007

The vz 52 rifle: Handy hybrid.

When the new nation of Czechoslovakia was born after the end of WWI, they received two important gifts from the vanquished nations. From the Austro-Hungarian war machine came the Imperial arsenal at Brno, which became the new Czech State Arsenal in 1919. From the defeated Germans came the tooling and licenses to build Mauser rifles. Given something to build and a place to build it, the industrious Czechs wasted no time in setting up an arms industry that was competitive with any in the world. Of course, this prize asset made their much larger neighbor to the north eye them greedily, and the Czech arms industry was one of the plums with which the Germans walked away from the table at Munich.

vz 52 rifle. Photo by Oleg Volk.

Like most factories in occupied Europe, the Czech factories spent the first part of the war turning out arms for their German occupiers and the last part getting bombed flat by the Western Allies. Compared to the utter devastation in Germany, Italy, and Poland, however, the Czechs were in remarkably good shape after the war, and quickly set about re-equipping their army with modern weapons, including a brand new self-loading rifle: The vz 52 (vz being the abbreviation for “vzor”; Czech for “type” or “model”.) The Czech arms industry had a tradition of quality and innovation, and the vz 52 was no exception. Designed using experiences gathered during WWII, it was a rifle that spanned two eras: Its full-length wood stock, intricately machined steel receiver, and semi-automatic operation wouldn't have been out of place in the 1930s, while its intermediate cartridge and detachable box magazine looked towards the future.


LEFT: Detail of receiver and magazine. Photo by Oleg Volk.





The trigger mechanism and safety are nearly identical to that of the American Garand, while the gas system utilizes a short-stroke annular piston derived from that of Germany's Walther self-loading rifles. The bolt is a tipping design, much like the contemporary Belgian and Russian autoloading rifles, but utilises lugs at the front of the bolt, rather than at the rear. Other features included a side-folding knife bayonet and unique double buttplates, with the outer one being a replaceable thin steel shell that protects the inner one from damage. The proprietary Czech cartridge, 7.62x45mm, is roughly the ballistic equivalent to the Soviet 7.62x39mm M43 round. The whole package makes for a handy little carbine, slightly smaller than the Russian SKS, and a fair bit handier in the bargain.


RIGHT: Side-folding knife bayonet. Photo by Oleg Volk.




Interestingly, the rifle was released as part of a whole suite of new infantry weapons in the early '50s by the Czechs, who hoped to get foreign currency in exchange. The weapons included an innovative pistol that used a roller-locking short recoil action to tame the potent 7.62x25mm Tokarev round, a general-purpose machine gun that was simply a belt-fed update of the proven Bren gun (another famous Czech design), and an innovative submachine gun featuring a bolt that telescoped around the breech and a magazine well integral with the pistol grip: both novel features that made for a compact weapon, and both features that would be cheerfully plagiarized by Uziel Gal when he "designed" his famous Uzi.

With this cornucopia of small-arms technical excellence poured at their feet, it is somehow unsurprising that the Soviets ignored it, and instead forced their own far cruder designs on the nascent Warsaw Pact. Meanwhile, most of the Czech weapons faded into undeserved obscurity, with sales slumping since both superpowers were essentially giving guns away to third-world nations who promised to be on their team. As a result, vz 52’s have turned up in the oddest corners of the world, flotsam and jetsam of the global arms market; they’ve been encountered in the hands of terrorists in Lebanon and Cuban “advisors” in Grenada.

The CZ52 pistol is well-known to American shooters, having been imported in droves over the last five years or more. Its companion rifle is a little less recognizable, and many of those coming in recently have been barely shootable junkers. Most of the rifles have been painted with an ugly black substance bearing a remarkable resemblance to pickup truck bed liner, and these seem to run for $100 or maybe a little less, but a nice clean one could fall into the $200-$300 range. Loaded factory 7.62x45 ammunition for the vz 52 is scarce; the only source I could find online was Buffalo Arms. Unfortunately, their brass is known for splitting case necks, so for properly annealed, reloadable 7.62x45 brass, the source is Gewehr 98 of the blog Neural Misfires. His brass is correctly annealed and reports have casings lasting through ten reloadings or more.

Tuesday, October 24, 2006

Fabrique Nationale SAFN-49: The proto-FAL

In the 1930's, the day of the bolt-action military service rifle was about to draw to a close. In the Soviet Union, designers were turning out limited-issue weapons like the SVT, while in the US, the American Army was about to adopt the first general-issue military self-loading rifle, the "Rifle, .30 Caliber, M1" (now more widely known by its designers' name: Garand.)

Meanwhile, in little Belgium, Dieudonne Saive and the engineers at Fabrique Nationale were hard at work on their own self-loading design, but were still in the prototype phase when WWII halted work. Skipping town ahead of the advancing Jerries, the FN crew attempted to interest the British in their new weapon, but the Brits preferred to stick with the Enfield rather than change horses in midstream.

After the war, development work resumed, resulting in the weapon being adopted by the Belgian Army as the SAFN-49. It's a well-made rifle, with an intricately-machined steel receiver, a tipping bolt operated by a gas piston over the barrel, and a ten-round magazine that does not detach for reloading, but is topped off through the top of the receiver with stripper clips. Belgian rifles were in .30-'06 to take advantage of NATO largesse, but export rifles were done in other calibers as well, including 8x57mm and 7x57mm.

SAFN-49, Egyptian contract. Photo by Oleg Volk.

The sights consist of a receiver-mounted aperture on tangent adustable for elevation, and a front blade adjustable for windage, protected by beefy wings. The safety is a simple pivoting lever next to the trigger. The gun was remarkably successful on the export market, especially in light of the fact that it was not very simple to manufacture, and the additional fact that the US and USSR were giving rifles away pretty much for the asking. It saw service in the Middle East, Southeast Asia, and all over South America. Mine was made at FN Herstal for the Egyptians. It's chambered in 8mm Mauser, and has its sight labeled in Arabic numbers.

Detail of receiver. Photo by Oleg Volk.

In the end, what put paid to the rifle was the move of the world's armies to select-fire weapons using intermediate-length cartridges. While the SAFN itself didn't survive this change, its genes did, as anyone who looks at one of these side-by-side with a certain more famous FN rifle can see.

As a footnote, this is probably the most modern military surplus rifle a US collector can own without NFA paperwork. Most subsequent designs were select-fire, and while parts-kit guns like FALs, CETMEs, and G3s can be fun to own, there's always something different about holding a true milsurp; a gun that was once actually a service arm, and is now honorably retired without having suffered the indignity of being chopped up with a cutting torch.