Developed to up gun the 30-06 Springfield, then taken over by massive numbers of hunters in the American west, the 300 Winchester Magnum has become a bench mark of American high power rifle cartridge design. When long range is the game the 300 Win Mag is the name, and the following information will give you some idea to exactly why this is the case.

The Winchester 300 Magnum ( Win Mag ) was developed in American in 1963, back in those days the advancements of the super cartridges was still in its early stages, but when the big 300 hit the sporting good store shelves, and gun writer finished reviewing the new cartridge both the Model 70 Winchester an dthat new super cartridge took off like wildfire.

Based on the 375 H&H Magnum case, but necked to a 30 caliber bullet, the 300 Win Mag was quickly found to be a very flexible ultra long range cartridge. In our hunting camps of the day ( 1960’s ) in Wyoming's Hole In The Wall area, we used the big 300 and its buddy the 7mm Remington Magnum as follow up rifles in the event an animal was hit and leaving the area still under power.

I will not mix words here. I have very few rifles that I consider very special to me and my custom shop built CZ American in 300 Win Mag is one of them, as well as my ArmaLite Chassis sniper rifle. The CZ is my game rifle, the Armalite is my ultra long range 1500 yard steel plate target rifle.

In so far as I have reviewed quite a number of different rifle brands and action here with ----- I must say that when most of these rifle types and brands are chambered in 300 Win Mag they jump to the head of the pack intently.

There is an old saying among rifle shooters and that is “history will clam the best”. Because the 300 Win Mag has withstood over 40 years of dealer shelve competition by other cartridge sales and not been set aside by anything else the best of the best is obvious/  Oh I know that there are a pile of new loads in production today, and many of them are being well received and used in the field. However, it will be history and time that will dictate just how strong a given cartridge and rifle are. In this case the 300 Win Mag need not share its fame or value with anyone or anything, because it has earn its place in the best of the best ever cartridge designed for a rifle chamber.

When the folks at Hornady Ammunition developed the first ELD bullets that have come to be known as ultra efficient high BC projectiles it was the 300 win Mag that got the call for the first commercial loadings, test runs and being I was there seeing first hand the net effects of the cartridge when applied to long rang big game animals. Why the 300 Win Mag/ Because Hornady knew full well that one pile of hunters shot the cartridge and paired rifles, and it would be accepted if the 300 Win Mag handled it well.  Range shooting with a spotter to 1500 yards\, and warm target big game hunting here in South Dakota on the Pine ridge Indian reservation tended to prove to me that the new bullet was outstanding, and upgraded the 300 Win Mag still another notch due to that high BC ( ballistic Coefficient ) retained by the new Hornady projectile.

When turning to some additional review information regarding the 300 Win Mag and so as to answer several questions about eh cartridge and paired rifle I wi start with answering the question as to what is the best 300 Win Mag Yu can buy?  I would not be wrong if I stated buy a rifle hand built by Slatterns Arms located in Dead Wood South Dakota. Satterlee builds some of the very best Mauser rifles out of pure titanium from a scratch piece of steel, cut rifled barrel that shoot sub sub M.O.A., and stocks that are to die for in terms of quality and fit.

About the only issue with my choice here is that these rifle start at about 15,000 and quickly move up to about $25.000 in no time flat. Nice rifles but a bit out of my wheel house, and in many cases yours as well I would tend to believe.  The real answer to this question is select a name brand rifle with a history of quality. An example of several rifles are Winchester Model 70’s of current construction, Anything in the Browning line of bolt guns. or for that mater lever action rifles. Remington rifles with Model 700 actions, and last but not least Ruger’s line of M-77 receiver style bolt action rifles.

Best 300 Win Mag Rifles

  • Ruger in the Hawkeye
  • Browning BLR, lever action rifle in 300 Win Mag
  • Browning BAR Mark III Semi-Auto Rifle
  • CZ 550 American
  • Remington m2010 chassis
  • Ruger Hawkeye long range rifle -  Best bang for the buck!

The Ruger can also be obtained in the chassis rifle design like the Armalite I own, but the Ruger in the Hawkeye model as either a heavy sportier, or a varmint target rifle, is very hard to beat for the money. 

If you check back into my reviews on other big game and military style center fire rifles you will see a pattern present itself here. Rifles in 30-06, 6.5 Creedmoor, and many others all can support the 300 Win Mag very well. If you strip the whole subject down to bare bones the 300 Win Mag is a 30-06 on asteroids. If a rifle feels right, shoots straight, and you bond with the metal, wood or polymer stock, this is the best rifle you can buy.


In terms of the 300 Win Mag as a hunting rifle yes, that has always been its first calling to service, and if speed is the deal I would suggest the Browning BLR, lever action rifle in 300 Win Mag. This rifle is fast to handle, easy to carry, and has balance for that occasional off hand shot, or setting down over a rock, or off shooting sticks for the long polk across a canon.

While a second choice in a fast shooter would be again the Browning, but this time the BAR model ( semiautomatic rifle ) in almost all cases that kind of speed is not necessary when your taking your best shot under controlled conditions in the field.  As a final option the old gold standard bolt action rifle steals the day in my book. I have all of my real field rifle that are used for big game built as bolt action rifles. If you know how to hunt, have learned to shoot, and can keep your wits together whenb it is time to go to work, the bolt action will do the deal every time. Make that first round count and the rest of the story takes care of itself.

Please be advised my friends I have shot in terms of writing field testing everything from the Mossberg bolt actions at a working guys price, right up to my Weatherby’s in bolt guns. I have never had one that shot bad enough so as to pull it from the rack and put a for sale sign on it. My 300 Win Mags include the ruger Hawkeye in the long range model ( heavy target ,) the Ruger Precision chassis rifle as a long range steel target rifle, my Armalite as a dedicated sniper rifle that will be covered a bit later as a part of this review, and my the CZ custom shop American, chambered in the 300 Win Mag. In so far as field hunting for deer and antelope here in the American west the CZ American bolt action gets the call most of the time.

Author Brezny with his CZ American, with trophy mule deer. Harvested at long range 400 yards in the South Dakota Missouri breaks.

Author with Savage Arms 300 Win Mag shooting one mile targets. Mortar crew set up three man.

Author with Texas trophy whitetail buck 300 Wn Mag Montana 1999 custom rifle.

As a final answer to the question about how good is the 300 Win Mag, and what rifles fit the task at hand? We turn to the military application of the cartridge, and a new set of paired rifles.

Because the 300 Win Mag is so outstanding in the field this fact did not go unnoticed by the American military. Just within the past few years the cartridge has been considered and adopted by the US Army as the replacement round for military sniper field ( M-24 ) and also the new 2010 chassis rifle now inservice by the government.  Previously the 7.62 NATO ( 308 Win ) was the accepted cartridge used by special operation snipers and even squad level riflemen. However in combat it was found based on the wide open shooting so evident today in the sand box of the Middle East that the 7.62 just lacked the necessary energy to be used as a stand off weapon against mortar crews ,and counter sniper operations in combat. Enter the 300 Win Mag that allows an additional 400 yards with the correct bullet to the equation. When the bad guy set up they are in range and when they pull back they are out of range, but so are the targets they want to hit as well. I do not base my information on my experience, but that of several active snipers I have interviewed for one of the three books I have written regarding long range shooting both on steel targets, and warm as well.

Author with Armalite 300 Win Mag sniper rifle. This is a dedicated military application sniper rifle and she shoots to 1400 with ease.

Today largely because of the military application of the 300 Win Mag and the M-2010 chassis rifle built by Remington arms the list of chassis rifles is endless in terms of them being offered in 300 Win Mag.

I was issued the M-2010 for a full month prior to its release to th US Army for my testing. Photo, and published findings. The rifle was set up with a suppressor, night vision system, and a complete set of tools so as to allow the sniper the ability to make any necessary adjustments or field repairs himself.  The price of this rifle as it was presented to me was upward of $25.000 and change.

I was able by way f my private 1000 yard range, and open ad for portable steel targets to make this 300 Win Mag effective well out to 1200 yards at first, and with special high BC bullet handloads. push the range to 1400 yards against a man size target. All of this work was done shooting the Armalite rifle, and the Ruger chassis rifle in the precision series.

Currently there is special ammunition being commercially loaded for the M-2010 in 300 Win Mag that is not available to the general public. This ammunition is well over SAMMI specifications, and as such manufactures would not back their rifle chambering these rounds. In combat snipers would set their rounds out in the hot sun so as to build additional burn rate and pressure when trying for the ultra long shots. Today the 300 Win mag as a military standard make use of a bullet /cartridge that will not need that additional push if you will. The company that developed the special 300 Win Mag ammunition is located right in my back yard, the Black Hills Ammunition company in South Dakota .

In my opinion the best bang for the buck in a military style rifle is the Ruger Hawkeye long range rifle. This rifle is very much a lookalike to the  US Marine Corps first generation turn bolt full stocked sniper rifles M40A6,, and it is a darn nice varmint rig, or long range target gunning system as well. This rifle comes in at an MSRP of a grand, but you can shop and buy them for much less on the open market.

As a side note the US Marine Cops has recently upgraded to the new MK13 MOD 7, which is a 300 Win Mag as offered in a chassis rifle.

Ruger Hawkeye Long Range Target.

At first the US Army unlike th Marines made the decision to re barrel all the old M24’s in 308 they had in inventory. That idea went by the way of the buffalo however, and today that previous discussed M-2010 is the new boss in sniper ranks.

Regardless of how you view the topic the 300 Win Mag is top dog among a wide range of hunters and military types alike.

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