Short action cartridges are perhaps the most tumultuous genre of rifle cartridges, there is always something new and exciting. But even with a steady influx of new cartridge introductions, there are senior cartridges that simply won’t relinquish their spot on the roster. Today we are talking about one of those; the incredibly versatile .243 Winchester.
Winchester was very busy in the years following the Second World War, and in the 1950’s the renowned model 70 picked up the new .243 Winchester chambering. The case was formed by necking down the 308 Winchester to a smaller six-millimeter (twenty-four) caliber. By narrowing the powder flow of the 308’s case into a six-millimeter bore, the spicy little .243 became very well known for its velocity. Bullets from 55-grains up to 100 or so grains found a very fast home in the .243, with velocities exceeding 4000 feet per second when loaded right.
this Sako L579 Forester is a typical heavy barreled .243, read more about it HERE
Today we will take a close look at the 243, and see what has made it such a long-lasting chambering. Primarily used as a hunting caliber, we will also see what makes it tick, and its potential relevance in a world filled with newer six-millimeter cartridges.
The .243 Winchester
The 308 Winchester has spawned dozens of wildcat and legitimate cartridges since its inception. Whether necked down to 6.5 millimeter to become the .260 Remington, or necked up to become a 338 Federal.
It seems back in the 1950’s that six-millimeter cartridges were popular, with both the .243 Winchester and 6mm Remington coming to market. While very comparable cartridges, the 243 seems to have become more popular.
With propellant and bullet technologies having come a long way since the fifties, the modern 243 is even more useful than the one your Grandpa used. The smaller than average cartridge has long been looked at as a “ladies gun” or something for youth to get started with. One reason is likely because of the soft recoil of the 243, making it significantly more pleasant to shoot than many popular 30 caliber options.
I love small and fast cartridges, and pushing them to the edge of their purpose is a not-so-secret hobby of mine. Besides the 243, I am also very fond of my 6 ARC and 6 GT chambered rifles. Though the 243 seems to stand tall as the largest 6mm sibling in common use.
handloading the .243 and modern barrels twist can turn a .243 into a monsterThis 6mm Creedmoor is another popular cartridge, you can read more about it HEREThe .243 stands tall next to other 6mm cartridges (L to R) .243, 6GT, 6Dasher, 6BR, 6ARC.243 Winchester ammunition is common and made by nearly every manufacturer
Sako certainly needs a short introduction. The Finnish firearm manufacturer is as well known as Winchester or Remington, and well known for good reason. Sako is responsible for a great many popular designs and features as old as bolt action rifles nearly. Today we are looking at one of Sako’s popular rifles from the more recent past, the Sako L579 Forester chambered in .243 Winchester.
There are various Model L579 rifles available on the market, but the one we are testing today is the Forester featuring a heavy profile barrel in a varmint-like configuration. With a twenty three-inch heavy barrel, the forester weighs in around the nine pound mark. Not exactly a packing rifle but most varmint rifles aren’t.
Notice bolt details
The Model L579 Forester
When the Forester was more of a new item, these Sako’s were highly sought after. They maintain a fairly high market value due to their reputation. They still sell for $1200 to $1400, which is a bit of a surprise were it not a Sako.
This classic rifle comes with a dark walnut stock, machined finely to fit the barreled action well. Checkering the stock was a common practice, as was the hard buttplate. Probably not a comfort issue though with a nine-pound .243.
Both the barrel and the action are what make the L579 interesting. The heavy profile barrel is made from the Bofors Steel, an oil hardened steel that is prone to high durability and strength. Chambered in .243 Winchester with a one-in-ten twist, this rifle promises to hammer like only a .243 can.
The L579 action is actually quite interesting. The bolt-body is more petite than anticipated, and uses what appears to be a Mauser-type claw extractor. But instead uses the Sako extractor cut into the side of the bolt head.
The safety is located on the right side of the bolt-shroud, and opposite the safety is the bolt stop to remove the bolt. Underneath the action itself is the hinged floorplate.
On the firing line
Range Preparations
First up this Sako was going to need a scope. My inventory of one-inch tube rifle scopes is dwindling, and the rifle had come with rings mounted. So I grabbed the first decent scope I could, which was an inexpensive Nikko Stirling 4-12X40.
After tightening up the rings, I pulled the bolt from the rifle to do a quick boresight job. Then I grabbed a Harris Bipod to attach to the front sling-stud to use as front support while shooting. With all my gear in tow, I swung by the local ammo hub and grabbed a few boxes of Norma Whitetail 100 grain ammunition which was all they had.
Sako pays attention to the details
Shooting the Sako L579 Forester
In typical fashion, I retreated with the sturdy Sako into the frozen Rocky Mountains nearby. I’d much rather test the rifle in the actual conditions it was designed for.
With a target setup at 110 yards, I lay prone with the rifle and stuffed three rounds into the magazine. Let me take a moment to say how classy these Sako actions are. Running cartridges through the action was as smooth as could be, extraction and ejection are fluid and fast. Furthermore, the L579 gives you incredible control of ejection. If you are in a hurry to reload, slamming the bolt back sends the spent case clear. Whereas if you are target shooting like I was, a slow pull leaves the spent case sitting right in the action port to remove by hand.
Adjusting for point of impact was quick, and I was soon shooting a few patterns to see how the rifle shot. On average the Norma Whitetail ammo produced three-shot groups just under an inch. Nothing too exciting, I also shot some hand-loaded Hornady 75-grain Vmax, they performed better. With groups averaging around .5 MOA. The hundred grain ammunition is designed for animals like deer and antelope, for which it would perform well. The seventy-five grain Vmax’s on the other hand would be devastating on coyotes, groundhogs and other varmints.
One of the better groups shot
This gun was built for smacking coyotes and light big game animals based on the cartridge. I think for those purposes it would shine, I would certainly feel adequate hunting Mule Deer in these steep Rocky Mountain canyons. And with the legendary Sako quality and performance I could do it with some class as well. The older standard barrel twist does limit it to the traditional bullet sizes and weights, if it had a 1:7.5 twist it would be a monster. Shooting modern heavy 6mm bullets at incredible speeds would push the distance envelope of this rifle significantly. But even as it is, there isn’t a coyote safe inside six hundred yards.
The trigger in the L579 is fantastic, a single stage that breaks clean and reliably. Like everything else with this rifle, there is a high quality feel to every moving part. I believe the smaller shank of the bolt reduces the amount of friction when it is pushed fore and aft. This is likely part of why the bolt is so smooth running.
Pros and Cons
I’ll preface this by saying I have a slightly different taste in firearms, but I cannot deny the great things about the Sako L579 Forester. The action design and function are as good as they come, the smooth operation is pure elegance. The heavy Bofors barrel shoots accurately, likely aided by the great trigger.
The only things I could hold against the rifle are these; It is heavy for what it is, the thick barrel adds significant weight to the rifle. That might be an issue if you plan on hiking very far with it, but if you are sitting in a blind calling coyotes perhaps not so much.
Also, the scope mounting system isn’t as mainstream as I would have liked. Granted this rifle is from another time, but its limited mounting system left me wishing for a different one. I would have loved to drop a pic rail on the action to run one of my better scopes. Shooting as well as it does I would love to put a better scope on this rifle, and terrorize the local coyote population.