I’ll not go into the background of .333 to .338-cal cartridges, as frankly that holds little interest for me. The first .338 cartridge that I knew about was the .338 Winchester Magnum, and shortly after I got into handloading for rifles it was an early acquisition. I’d owned and handloaded two magnum rifles prior to the .338 – a 7 Rem mag and a .300 Win Mag.
The .338 Winchester Magnum came in a Sako FS carbine with a 20″ barrel. Having researched articles, stories, comments and handloading data from manuals, I knew its potential and therefore figured it might loose up to 100 fps from a top load in a 24″ barrel. Knowing myself and my handloading experiences thus far, I was quite certain that 100 fps loss could be cut in half. So a 250gr at around 2650 fps was nothing that any North American large beast could ignore if hit right with a good bullet, and within sensible ranges.
This is a .375 H&H in the same make and model, except it has a 22″ barrel, not a 20″.
After having tried all bullet weights available at the time: 200gr, 225s, 250s and a 275gr from Speer, I settled on the 250gr Sierra BT. It gave the highest MV and best accuracy, and I had no qualms over using it on game to moose size – in fact, it was an up-coming moose hunt that also prompted me to choose it.
The rifle itself had some serious flaws, that I’ve written about in previous blogs not to be repeated here, but the point is that I learned a great deal about making suitable handloads for a .338 Winchester Magnum.
Several years later another .338 Win Mag came into my possession as a replacement for a new Browning A-Bolt in .375 H&H with an off-center bore that couldn’t be made accurate enough as a hunting tool for large game. It was replaced by the dealer with a near identical A-Bolt SS in left-hand action chambered in .338 Win Mag. My plan was to have it rechambered to .340 WBY – which happened following a year’s use as a reloaded .338 Win Mag. As a .338 WM it gave unheard of results from its 26″ barrel. A book load of RL-19 under a 250gr Hornady SP Int. recorded 2842 fps when corrected to MV – at less than MOA. I was beginning to have second thoughts about having it made into a .340 Wby.
<Here it is as a .340 Wby Mag.
The upshot of those experiences, plus assisting our second son with handloads for his Rem 700 in .338 Win for an upcoming moose hunt that we would share, gave consistent results for both 225 and 250 grainers expected from a 24″ barrel. All in all, I feel confident that Nosler’s current published results for their 250s from a 24″ test barrel are close to expected results at a high MV of 2780 fps/4290 ft-lbs.
On average, that’s close enough to a 250gr from a .375 H&H. Depending on the bullet and powder, I’m getting 2800 to 2900 fps from 250s in my 22″ Zastava M70 in .375 H&H. Just from those few experiences, plus dozens of others, I’m convinced that some equal-length barrels are significantly faster than others when fed the same loads. As an example, I’ve owned a total of 4 Browning A-Bolts SS in LH actions with 26″ barrels chambered in .300 WM, .338 W.M., .340 Wby Mag and .375 H&H (with the off-center bore), and they all (including the .375 H&H) produced velocities about 100 fps faster than expected given the loads used.
From a careful analysis of the NOSLER 9 manual on the various .338 magnums there are some surprises, anomalies, expected and non-expected results. The up-shot of that in-depth analysis is that if I wanted the best overall .338 magnum, I’d be very hard-pressed to improve on the results that my Browning A-Bolt SS (LH) gave when rechambered to a .340 Wby Mag. Over the 5 yr period of ownership, I fired ~1000 handloads through that rifle, about 1/3 of which were 250gr Nosler Partitions at an average of 2997 fps from RL-22 into an average of 1.25″ at 100 yds for three. That was my moose hunting load. The 250gr Hornady SP Int. was more accurate at about 2850 fps, but I chose the 250 Partition for the hunt without regrets. If it were today, it might be the 250 AB with a much better BC, but I doubt it.
In Nosler’s 9 manual, if you compare the .340 Wby with the .338 RUM and Lapua, from the 250s to the 300s, there’s little difference that matters – they’re all in the same ballpark, except the .340 Wby is more efficient. Honestly, I NEVER noticed its recoil before, during or after the hunt. All bullets went where intended into the bull that was an estimated 1100 lbs from the boned-out meat results.
Range was an estimated 165 yards. I made that estimate from years in the field after pacing off distances. I was also a former dedicated golf player and could read ranges quite well. And the hunt was long before I owned a range finder. Anothe example: I judged the distance at my favorite bear-bait setup in Haliburton Highlands on a downhill slope as 100 yds before I ever had a range finder. After my wife gave me a range-finder Christmas gift, I checked the distance of that bear-bait site at 97 yards.
<Several bears shot there.
So, that 250gr NP leaving the muzzle of my .340 Wby at ~3000 fps, impacted that 1100 lb bull broadside at 165 yds through the lungs at about what the .338 Win Mag 250gr NP is advertised at an MV of 2660 fps/3927 ft-lbs. Ergo: the .340’s advantage was 165 yards before a .338 Win Mag gets started from factory fodder. Does it matter? Well, yes in several ways: Hits harder and dumps more energy at all ranges. Then, at the .338 Win Mags effective limit on elk, moose or big bears, the .340 is effective to at least another 100 – 150 yds beyond that! It’s right there with the Lapua that burns more powder and makes more noise and “kick” for essentially doing the same thing! Make mine a .340 Weatherby!
Of course, the 33 Nosler will also make more noise with its ports and burning more powder than the .338 Win Mag while doing much the same thing: Make mine a .338 Win. And, oh yeah, at 5 – 6 lbs, ouch and OUCH!! Far worse than not only a 8.5 lb .338 Win but also the same weight .340! But it needs that can – an extra 10″ of OL to about 50″ OL! Does that make it “sweet” for the woods or mountains? “But it burns more powder than the .338 Win from that larger case, so it must be BETTER, right?” Yeah, right, if you live in a fantasy land!
Depending on who you are, if you need or want a .338 magnum, in my humble opinion, choose one of the classics: the .338 Win Mag or .340 Wby. I see two .340s at my emporium. The .338 Win Mags don’t hang around for very long . . . . In fact, I’ve yet to see even one of the new 33 Nosler rifles for sale at EPPS.
I repeat: “Depending on who you are”. Our son, Phil, and I have spent many days hunting together, and many hours talking rifles, ballistics and hunting, as well as testing handloads at the range where we both are members. For our first moose hunt, Phil purchased a Remington M700 SS with synthetic stock in a mountain rifle chambered in .338 Winchester Magnum. He got one shot at a running moose using a 225gr handload that left him with a bloody forehead. Our last moose hunt was to the “Far North” of our province where I used the .340 Wby to bring down the bull. Phil had that same .338 Win along, this time handloaded with a 250gr Hornady SP Int. at around 2735 fps. The bull lying flat on the ground was still breathing, so I asked him to shoot it between the eyes. He did from about ten feet and that finished matters.

Phil’s a big man who outweighs me by a hundred pounds at least, but he has a tender heart for which I love him dearly! Some time ago he sold his Ruger No.3 in .45-70 and later still his .338 Win Mag. Today his deer rifle is a Creedmoor 6.5, and for a big bore he has a Traditions G3 Outfitter in .44 Rem Mag (same rifle as mine in .35 Whelen). He was in the process of wringing them out at the range using both handloads and factory ammo, but an impending move has put a temporary stop on it until they’re settled in a new area. We love and accept him for all that he is, not wanting him to be someone else. He also loves rifles, handloading, shooting and hunting, and purchased a Garmin Xero, which is under my care until they are settled again. I wouldn’t want him to be different than he is, or change for my sake.
I think that some will not be comfortable with the recoil of magnums in .338″ class unless they have a place and time to put in the practice requisite for adept shooting. I understand and get it.
But I do have a problem with some on the net who insist that the recoil of such magnums can’t be handled by the average shooter to the effect they’ll flinch or bat their eyes throwing them off from excellent or even good marksmanship on game animals regardless of range. Or, that the small bore rifles today with long-range asperations of taking large game is more easily accomplished with those streamlined bullets manufactured for those with such a vision.
I, for one, firmly doubt that for physical not ideological reasons.
Like idealistic geopolitical beliefs among the elite that have seriously messed up democratic societies, it is an illusion that denies several key issues in real life hunting, regardless of time and place of unmanufactured circumstances.
From where I was standing in this bog, to the farthest point was just over 400 yards according to a GPS satellite reading. Would you take such a shot from ground level on an elk or moose without elevation and a steady rest? Regardless, I’d want at least a .300 magnum.
Regardless of the platform, a small bore rifle can only shoot small bore and relatively light-weight projectiles. Yes, they may hold their flight pattern and velocity to a greater distance than in times past, but they are still limited by their smallness and weight: i.e their terminal effect (TE) and/or energy.
Studies/research have found that the most common calibers and cartridges used by the most successful elk hunters in the USA at 600 to 750 yards are 7 mags, 300 mags and 338 mags. There are several reasons for that in this order:
1. The shooter
2. The rifle
3. The cartridge-caliber
4. The bullet
5. Physical conditions
If there’s a failure/breakdown in any of those 5, it’s a BUST big time in attempted shots on elk-size big game and larger at so-called “long range”.
FIRST: the shooter. Give him/her the best of everything, but if he can’t shoot, no matter the cartridge, it will be a bust! Certain African countries require that before they hand out PH licences for Dangerous Game the candidate must undergo rigorous training under the demanding scrutiny of a veteran PH with years of experience in actually killing dangerous game, like charging buffalo and/or elephant.
The license to kill an elk at 600 to 750 yards should first require that the hunter should kill at least a few (say 4 or more) at up to 300 yds!
<This “neck of the woods” is a part of Haliburton Highlands. I wasn’t aiming my CZ550 in .458 Winchester Magnum at an elk or any other creature, but at a particular point about 75 yds away to check my stance in holding the rifle steady. Also, as I recall, I had licenses for bear and a moose calf, as well as for wolf and small game. It would be rare to get a shot on game at 300 yds or more in this location, but 250 yds was possible on the trail that brought me up here on the ridge. I’ve climbed this ridge dozens of times. Then it descends down in the direction my rifle’s pointing to a stream that follows a rift at the bottom that opens up a significantly large area before climbing another ridge. The stream flows into a fair-sized lake. The rifle was loaded with the 350gr TSX at 2750 fps. That load was good for very close work or to about 400 yds. I did use that 350 TSX on a smallish bear about 1 mile from this location. Even 250 yds would be a rare shot in this part of the world because of very rough terrain in the form of sharp ridges, cliffs, high hills, varried water sources including multiple lakes and streams that flow into or out of them. Haliburton Highlands is renowned for it’s ravines, cliffs and lakes of varying sizes, and its wildlife. Then there are car and house-size boulders just sitting wherever they’ve decided to sit. No, they’re not attached to an underground granite mountain or foundation. Thus, I don’t need a rifle for slaying elk or moose, or any other creature at 500+ yards, but one that will anchor a beast right then and there . . . if it wanders off even 50 yds, it might never be retrieved or even found. A 1000 lb moose over a cliff or at the bottom of a ravine? You’ll need all the help and luck you can get and then some!
I want stopping rifles, not just rifles that kill after a few shots and 200 yds later!
SECOND: the rifle. Entirely apart from the caliber and cartridge, there are rifles that are capable of shooting their chosen and best loads better than MOA consistently. If I considered myself capable of consistently hitting an elk or moose in their vitals at over 600 yards, I’d insist on a rifle that could pull that off, not sometimes if lucky, but each and every time!
< That .35 Whelen load was my bear load for 2022. The above target was at 100 yds. From a vital hit, it was capable for the largest bear in our woods to 400 yds – and about the same for an 800 to 1000 lb moose.
Few rifles need apply!
THIRD: the cartridge-caliber. This was the whole point of comparing the .338 magnums. IF the shooter and the rifle are up to it, there’s NO legitimate question over the ability of .338 magnums. Back in 1958 the .338 Win Mag was both designed and built for hunting and killing the larger soft-skinned game of Alaska in particular and the world in general, many of which are also dangerous game.
Roy Weatherby expanded the neck on their .300 Wby Mag to take .338″ bullets in 1962 to compete with Winchester’s version of a powerful magnum for game to 2000 lbs. That was the debut of the renowned .340 Weatherby Magnum discussed above. One of the best for such purposes!
4. The bullet. Some say, you start with the bullet and build your rifle around it. Well, we certainly have never been so rich in bullets as those available today. But that’s backwards for the average hunter who chooses his/her rifle and cartridge-caliber, with assurance that the “best” bullets can be acquired to suite the missions of that rifle.
I chose another .375 H&H in early 2023 with a belief that suitable bullets could be found to serve my purposes. My first hurdle, in regard to .375″ projectiles, was to find a source for the 300gr SBT that would ultimately become my 1st choice. Because they were not immediately available in this area, I experimented with others, mostly from Barnes, settling on the 250gr TTSX in the interim. However, within the past several months some 300gr SBTs began to show up so two boxes have been purchased, separated by about six months from different sources. So for the second half of last year’s bear hunt (the fall) I developed a load for the 300gr SBT that is very satisfactory at a mean of 2674 fps into MOA.


<The expanded bullet, from rear end to front were screen shots of a 300gr Sierra BT shot from a .378 Wby Mag at 3033 fps into some water jugs from 50 yds. The fellow who did this had also shot an elk with that load and he said it worked perfectly. After also testing the 300gr Nosler AB at a similar MV into an identical water jug type test, he favored the results from the 300 Sierra BT over the 300gr Nosler AB.
I had thoroughly researched the 300gr Sierra BT many years ago after I traded the 338 Win Mag in a Sako FS, plus $100, for the nearly new Win 70 in .375 H&H. It shot so well in the .375 that while testing some others, I settled on the 300 SBT as my hunting load. I’d also read an extensive report by a fellow Canadian, who lived in the Territories of the far north of Canada, who used a lot of different .375-caliber bullets in testing on live game – the large and dangerous sort – and pronounced the 300 SBT the best of the lot by far and away! Of course, Partitions and X-Bullets, and modern renditions of the same, plus others like A-Frames, etc, were not yet in production or were unavailable. But, nevertheless, his in depth report convinced me of the quality and performance of the 300gr Sierra BT. I recently went on a search for that material and got a message that the website was no longer available.
Of course today’s pundits declare that anything short of the “best” should not be used on dangerous game or on a hunt that costs more than a buck or two.
In spite of such opinions (that mostly lack convincing evidence) I purposely chose that 300gr SBT for my bear hunts of 2024, and in no way did I have second thoughts at 15 – 20 yards from that ~500 lb bear coming in my direction.


The 300gr SBT on the right of the 300gr TSX. It allows more room in the case for powder.
FIFTH: the physical conditions of the hunt. This is the wildcard! There’s a certain amount of unpredictability involved in the conditions of a hunt. Unless someone has only chosen to hunt in certain places on nice days, he knows what I’m talking about! Hunts in Alaska are likely the greatest proof of that claim of unpredictible weather and variable conditions. In any case, you know there’s going to be lots of rain (or freezing rain or snow) with high winds in valleys or mountain tops, and in tents that at times sound and feel like they’re about to leave this earth! Then to sit in the open on the side of a mountain glassing across a valley to another mountain 5 miles distant for search of animal life needs not only a steely constitution but god-like patience! Then what about the well-chosen tools for the chase, how fit and durable are they? That includes outerwear and boots! And the rifle? Some claim nothing but SS metal and syn stock – like my .35 Whelen.

You/we may get one shot on a 10 ft brownie worth $30,000, in a rainstorm with wind at 40 – 50 knots!
That’s certainly extreme for most, but that’s the point! Can we predict conditions for a two-week hunt in a strange place away from home base? On a deer hunt I was stuck for three days in a lakeside cabin with three others with power cut off and trees coming down from a hurricane. No, that was not the same hurricane as the one on a moose hunt! We hunted moose during hurricane seasons.
So there’s idealism, and then there are hard realities over which we have no control!
My philosophy has always been to have control of what matters in my life, by the grace of God while learning from failures and mistakes of judgment. In regard to hunting and its tools, I aim (pun intended) to not repeat the same failures and mistakes of the past, so help me God!
That mindset has reinforced the original notion to go prepared for the unexpected and potentially dangerous turn of events, rather than the ideological and “safe” ones. No, I’m not paranoid!
Thus and so forth, I’ve learned to handle and deal with rifles of “overmuch power” for confidence sake in facing unexpected circumstances that could spell “double trouble” in a flash like a lightning strike! When philosophic idealism crumbles, pragmatism must instantly take charge to save our “skin” or that of others!
If I’ve learned anything worthwhile in 60+ years of hunting. . . pragmatism trumps philosophic idealism every time!
Summary: After experience and/or pragmatic evaluation, choose the best “medium” (a .338 ?) for larger than whitetail deer or potential dangerous game. Don’t try to make a “small-bore” more than it is. . . regardless of how high-tech a bullet might be, if it’s from a “small-bore rifle”, it will never do the work of a medium or large-bore.
There are sub-medium magnums (i.e. 7mm to .300) that are competitive, and I’ve used them, and they are better overall than “standard” cartridges in those calibers, but it’s a matter of range and degree when matters work out as planned – but what if that elk is farther away or at a bad angle, should the shot be taken? It may be your only chance on the “trophy of a lifetime”. . . . or should you have practiced and learned to shoot that magnum with a bit more recoil?
This rifle is one I cherished for a long time. In my view, it would be near impossible to improve on it as a do it all without compromise! It’s a SAKO 85 Black Bear with a 22″ barrel in 9.3 x 62. With best handloads, it’s as capable as a .375 H&H or .338 Win Mag. My favorite rifle for over a decade was my TIKKA T3 Lite in 9.3 x 62, and it was the most accurate big-game rifle I’ve owned. I recently gave it as a gift to our oldest son, Brent, with brass and bullets and other reloading accessories.
But the typical objection seems to be: “What if I’m toting a .338 magnum and the “trophy” is standing at 50 yds?” My advise then would be: “SHOOT IT!”
Till the next. . . .
Shalom
BOB MITCHELL