HG Ammo

Rifle Button

Inflation Button


(Retail Orders Only) 

Offer good in Lower 48 States Only


Sale Item

Heavy .44 Magnum +P+ Pistol and Handgun Ammo

SKU: 4D/20
Qty: - +

Heavy .44 Magnum +P+ Ammo
340 gr. Hard Cast, L.F.N. - G.C. @ 1,425 fps/M.E. 1,533 ft lbs
20 Round Box




This new load is designed ONLY for certain firearms. They are as follows; Ruger Red Hawk, Ruger Super Red Hawk (the Ruger Alaskan is a short barrel Super Redhawk), Ruger Super Blackhawk or Vaquero, Freedom Arms Model 83, Taurus Raging Bull All Steel Versions (no lightweight alloys), Colt Anaconda, Magnum Research BFR and Dan Wesson Revolvers. Suitable rifles include T/C Encore, CVA Hunter, Handi Rifle and any rifle with a falling block action.  Please note that this website list of approved firearms is more up to date than some of the lists found on our boxes of ammo.

We get hundreds of emails asking if this load can be fired in S&W revolvers or some firearm other than what is in the above list. The answer is NO. The above list is all-inclusive. If some shooters continue to use this product irresponsibly, we may have to discontinue it, and that would be unfortunate as it is our best selling 44 mag. Load, and it gives excellent performance for those that use it responsibly; however, as is always the case, irresponsible use of any product ends up penalizing responsible users. It would also be wise to read our “Technical Article” on “Dangerous Pure Lead Cowboy Bullets”, before using this (ITEM 4D) product. 

This load brings a level of power to the 44 Mag. that has never before been known. 

The below velocities with over-the-counter firearms tell the story. 

1,401 fps -- 5.5-inch factory stock Red Hawk
>  1,478 fps -- 7.5-inch factory stock Red Hawk


Item 4D - Exterior Ballistics Charts for several Muzzle Velocities


Muzzle Velocity @ 1700 fps for Item 4D


 Muzzle Velocity @ 1600 fps for Item 4D


 Muzzle Velocity @ 1500 fps for Item 4D


 Muzzle Velocity @ 1400 fps for Item 4D


 Muzzle Velocity @ 1300 fps for Item 4D


Field Proven pistol and handgun ammo. Maximum firepower ammo. Best ammunition for pistols and handguns for sale. Buffalo Bore. Strictly big bore. Strictly Business.

You must be 18 or older to order ammunition. Ammunition must ship UPS ground. Due to Department of Transportation regulations, we cannot accept returns on Ammunition. Make sure to use the correct ammunition in your gun. Check local laws before ordering.


Micah Hicks on 01/13/2024 05:20pm
Shot a few of these for the first time today. If they do to a bear what they did to the watermelon I shot, he'll never know what hit him.
Brian Oyler on 11/20/2023 10:11pm
I got a 15 boxes of this ammo as a birthday present recently and ran three boxes through my new 8 inch barreled Colt Anaconda this morning. The velocity of ten rounds averaged 1513 fps! This is amazing ammo, it felt like I was shooting my Freedom 83 454 Casull! Great ammunition, as always Buffalo Bore doesn't disappoint.
Brett Johnson Jr on 09/20/2023 10:15pm
This is a great load, that definitely pushes the limit of the 44 magnum cartridge. I have shot it through a Ruger Super Redhawk 9.5 and Taurus Raging Bull 8 1/3, and this round is accurate and stout.
Terry Berg on 03/09/2023 01:28pm
My daughter and I took my Ruger Redhawk 5.5"
.44 mag out to shoot at heavy cast target.
She is 5' 120 lbs. Strong, but small! She hunts and fights fires. Just braggen.

We had a blast, pun intended. I was concerned about snap, lack of control for follow-up shots etc.
But only a heavy push that taught us to be ready for.
Actually, even out of this shorter barrel, this round was no (zero) problem to shoot. In fact, it was great fun for us!
Love the way this ammo put the biggest, deepest damage to the heavy gong we shot.
My police special.357 mag 2" barrel is brutal.
Not this round. Hope to hunt with her!
Jeff Bishop on 08/06/2022 10:15pm
Bought my first box 44mag 340g P for my 7.5" Ruger Super Redhawk. Will be in the Montana back country and carrying for bear defense along with pepper spray. Tested a few rounds. They are accurate and hard hitting. Went through a 10" slab of dry firewood and kept on going without a wiggle in the slab. Bullet made a clean exit. Videos I saw made this out to be somewhat punishing on the shooter. With the tang grip design on the Super Redhawk with Pachmyr grips it was very manageable.
Aaron on 02/03/2022 04:31pm
I have used the Heavy 44 Magnum P rounds for over 5 years in my 7.5" Ruger Super Redhawk and 6" Colt Anaconda. The Heavy P is a very powerful round that is spot-on accurate. Creates large wound cavities and drops whitetail deer quickly. You will need to practice to get used to these rounds due to the increased recoil. The Heavy P is probably the best round Buffalo Bore makes today. Not one single issue or problems, work perfectly as advertised everytime. HIghly recommended.
Huck on 12/18/2021 09:01pm
I bought these when I was headed to Grizzly country to hunt elk. I loaded them in a Super Redhawk 7.5 inch Ruger. In firing them at the range, I was awed. It's an experience everyone should have. Yea, strictly business, No bull about that. Hold tight so the hammer doesn't cut your thumb web. BB has another load for "dangerous game" but it can't beat these.
richard robins on 12/03/2021 10:08pm
I've shot a few of these 44 P 340 GRAIN in my Ruger Red Hawk 5.5 barrel. when they say strictly big bore, strictly business, they do mean what they say, they bring a new meaning to the phrase hand cannon, a superb round
Ron Sawicky on 06/21/2021 12:17pm
I love these as a real powerhouse round in my 5.5" Ruger Redhawk. Never a problem with a round, eject smoothly, tight groupings considering what/how I shoot. If the recoil is a bit much, look to the 305 gr loads which are a bit more forgiving but still bring the business - I've been happy with both.
Leon Button on 05/29/2021 12:34pm
Great ammo. More recoil than other ammo but very manageable, was not an issue. Accurate and no problems with extraction in a ruger red hawk.
Charles Flood on 05/01/2021 07:51pm
This is my favorite load in 44 magnum, the power that this round has is astounding, definitely very high quality ammunition. If you have a firearm that will Handel this load i would not hesitate to get a box , to keep on hand if nothing else. Looking forward to trying it out on game animals.
Todd on 05/31/2020 11:42pm
Very impressive! I bought both this and Underwood's same 340gr P rated bullet for my 44 magnum. The recoil felt slightly snappier for buffalo bore. I chronographed five random rounds from both brands and from my 5.5" Ruger Redhawk, I found an average speed of 1,240fps (1,161ft/lbs) for Underwood and 1,300fps (1,276ft/lbs) for Buffalo Bore. Standard deviations were the same, but buffalo bore was consistently giving 60fps more from the same advertised ammo. I posted a YouTube review here ( I love this stuff and will be bringing it on every hike out West I take in the future.

Paul Lennon on 05/26/2018 10:54am

I AM IMPRESSED with this load's unmatched power and incredible accuracy! I purchased 2 boxes of this 340 gr. LHC P load this week, to try in my single shot CVA Hunter in .44 Mag, with its 22" bbl. and 1 in 20" twist rifling. I bought it primarily as a 'camp gun' and wanted the heaviest practical, and most accurate, dedicated 'bear load' for family-protection (along with our bear spray) should a threatening grizzly show up at our camp.

While the recoil must be a "bear" in even heavy revolvers, it's really negligible (almost a 'pussy-cat' in comparison to ANY handguns) in my small 6.5 lb. scoped-CVA rifle. This rifle's rifling also truly likes this Buffalo Bore<br 'heavy-bullet' load as my 5 shot group at 50 yds. (from a bench-rest) shot into 5/8"!!

At 100 yds. my 5 shots went into an honest 1.5", just 3" above my point-of-aim and only 1" above this little rifle's current-zero with Buffalo Bore's 240 gr LHPGC. P "Deer Grenade" load. This latter load will also place 5 shots into a 1 - 1.5" group at 100 yds., all day long, if I do my part!

So, I fully endorse both of these Buffalo Bore loads (especially the heavy HC 340 gr. bullet load for bears) and I also suggest to anyone looking for a great little carbine in the .44 Mag. which might be used for bears (and who are 'recoil-shy' when it comes to heavy-caliber bear-loads in revolvers!), to seriously consider this Buffalo Bore load & CVA 'Hunter' rifle combo'!

Paul Lennon.
Eagle, ID

tom frey on 12/01/2017 07:04am
If you want to get max energy out of your .44 this is the one. I have reloaded some heavy rounds, but they seem tame to these. At the range you will get people's attention.
KeithS on 03/13/2014 09:34am
First encountered this from a friend who brought some to the range. I usually shoot 240gr jhps in my Ruger SBH. I loaded a cylinder with these, noted they almost come to the end of the chamber in the cylinder. Being used to the 240gr 44mag, I had no idea what to expect. There was a lotta recoil compared to .44mag 240 gr, no holding this one down! Glad my 7.5 SBH weighs 3lbs. Would not want to shoot this out of a lighter 44. Accurate and powerful, would carry in bear country.
James on 12/09/2012 09:03am
Like shooting a cannon in your hands. This is a load for people that want the ballistics of a .454 casull without having to actually buy the weapon itself. I had a super redhawk, and recoil was "stout" with these loads. If you want to hunt with this ammo, you are going to need to put some time in at the range if you aren't used to this level of recoil. I should mention I got a lot of "WTF was that" faces at the range when I shot these too. Always entertaining!
Larry Allen on 12/13/2011 02:06pm

Mr. Sundles,

Last week's hunt was at Dismal River Ranch near Mullen, Nebraska with my good friend John Howell.  John has tremendous trophy bull bison and great accommodations and John backs up all his hunters with your 45/70 ammo.  From 15 to 25 hunters a year. 

My first shot at 65 yards entered the left side of the bull just behind the elbow on the front leg and penetrated both lungs, it was over the heart by about an inch.  That bullet was recovered under the hide on the bull's offside.  Photos are attached.  

The next shot was high in the back on the left side towards the off side shoulder.  We could not find that bullet.  He turned giving me a shot to the neck that passed completely thru him and that bullet was not recovered.  I normally will not shoot an animal that is lying down, but I had a good rest and my Ruger Blackhawk Hunter 44 Magnum wears a Leupold pistol scope, so I was confident in my aim.  From the first shot to the last, John said it was about 6 seconds total, the bull traveled about 8 to 10 yards.  This is my third bison bull and the others were shot with a 444 Marlin.  They traveled much farther before going down than this bull.  

I will use the Ruger with your 44 Magnum 340 grain LBT-LFNGC +P+ load for all my bison hunts in the future. John says he will borrow it too.   I am impressed with this load in many ways.  Terminal performance was amazing and the accuracy speaks for its self as the 65-yard range is not a guess, but ranged with both my guide's and my rangefinders.  Hope you enjoy the photos of the bull and the bullet. 

Larry Allen

     Click here For Large View



    Click here For Large View





J, Deal on 01/31/2011 02:37pm
I have come to an honest conclusion about these heavy p .44 mag. loads.
They are superior to standard factory .454 Casull loads!!
I fire them in my Ruger super Redhawk Alaskan 2.5 inch.
Buffalo Bore .454 casull are obviously superior, but where can you buy the most powerful .44 magnum round anywhere else in the world? you can't! Only Buffalo Bore sells the most powerful .44 mag.round in the world!
I am beyond impressed.
Jer Deal on 10/03/2010 01:24pm
Fired my first rounds from a ruger redhawk 5.5 from 30 yards in a kneeling position.
Heavy recoil, but very manageable.
bulls eye on target, i am impressed.
this will be a great deer round, and possibly moose at close range.
highly recommended to all handgun hunters!!
Keith Gravois on 08/18/2010 08:08am

Here are pictures of the 2 cow elk I took with your rounds. Feel free to use this info. I shot these 2 cow elk in 2 seasons with my Dan Wesson 44 magnum, open sites, 10 inch barrel,revolver. One elk was taken thru both lungs at 50 yards, she was 450 lbs. The second elk was also shot thru both lungs and a follow up shot that wasn't necessary. She was 600 lbs. The elk were just as well hit as with my 300 win. mag. This shows the power of the buffalo bore 340 grain + P+ 44 mag. I will continue to use this round as it has proven itself.

Keith Gravois

Click for Full Image

JD on 07/04/2010 06:21pm
Incredible round for the .44 magnum!! I have a ruger super blackhawk 4 5/8 barrel and found this round to be very accurate and had no problems with extraction. The recoil is stout, but manageable ( even had my 120lb girlfriend shoot it with no problem) If you are looking for a reliable round with plenty of power look no further!!
David Anderson on 05/29/2010 03:33am
Zips through a 15 inch diameter live poplar with energy to spare.
Reno on 02/03/2010 06:13pm
I shoot these from my 9.5" Ruger Super Redhawk. Yet to kill a critter with it, but am headed to Maine for a Black Bear hunt, and will give the review then. All I can say now is that these come out fast, and print nice groups iron sights, at 25 yards.
Tyler Masters on 12/27/2009 03:30pm
great ammo for pigs
Tyler Ziegler on 11/22/2009 06:27pm
I've been shooting this ammo in my S
Ken Lathrop on 04/22/2009 01:59am
Have used extensively in Ruger super red hawk. Only using on big whitetails in Iowa, but puts them down fast. Dont need this much power for deer but allows me to get extended range. Had a wounded deer from another hunter running at 150 plus yards, fired the shot quartering away, got lucky shot and put deer down instantly, awsome round, you wont be disapointed.

Add Your Review

Your Name:
Email Address:
Note: HTML is not translated! Your email address will not be shared with anyone.
Your Rating: 5
Your Name:
Your Email:
Friends Name:
Friends Email: