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SKU: 45-255/20

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255 gr. Hard Cast FN @ 925 fps/M.E. 484 ft lbs
20 Round Box

ITEM 45-255

45 ACP +P ammo is externally/dimensionally identical to 45 ACP ammo and can be fired in any 45 ACP firearm that is in normal operating condition. However, the greater pressures and power of the +P ammo will give you greater slide velocity and if you are going to shoot more than a box or two of +P ammo, you should consider replacing your recoil spring with a Wolf Spring that gives roughly 4 to 6 lbs more spring weight than factory stock springs. A shock buffer might also be a good addition although it is not too necessary if you use the stronger spring.

The below velocities were fired from my personal Colt Gold Cup 1911 (5 inch)

➤  1,180 fps -- 45185 (185gr. Jhp)
➤  1,078 fps -- 45200 (200gr. Jhp)
➤     979 fps -- 45230 (230gr. Jhp)
➤     981 fps -- 45230FMJ (230gr. Fmj-FLAT NOSE)
➤     960 fps -- 45255 (255gr. HARD CAST-FLAT NOSE)

As always, with Buffalo Bore Ammunition, we use real world firearms to give real-world data and results. Laboratory test barrels tell you little about what kind of speed you can expect from your stock firearm.

All our 45 ACP +P loads utilize flash suppressed powders so that you will not be blinded by your own gunfire should you need to fire in the dark when the criminal element is at work.

The three JHP loads are designed for defense against humans, while the two non-expanding loads are designed to shoot through large shoulder bones or the skull on a black bear. These non-expanding bullets also work well if you need to shoot through cover like car doors or stick frame walls.

Item 45255 - Exterior Ballistics Charts for several Muzzle Velocities


Muzzle Velocity @ 1200 fps for Item 45255


Muzzle Velocity @ 1100 fps for Item 45255


Muzzle Velocity @ 1000 fps for Item 45255


Muzzle Velocity @ 900 fps for Item 45255


Muzzle Velocity @ 800 fps for Item 45255

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.

Lt. Dan on 06/29/2011 08:34pm

I load several different types of rounds in my carry magazine, from law enforcement P hollow point, to ball; and the last round in each of my magazines is a Buffalo Bore hard cast round.
This is because if all the other rounds fail to stop the threat, I know there is something SERIOUSLY wrong: perhaps a large four legged beast or the two legged variety in a vehicle or behind "cover".
I have tested these rounds in two temperamental Kimber 1911s. They feed flawlessly and are perhaps more accurate than match rounds, and I flat did not notice extra recoil or loss of sight picture.
I looked at the Buffalo Bore hole in the center of the ten ring with amazement. I don't consider myself a marksman.
Bottom line: I feel better knowing that these bad boys are in the magazine.
Lt. Dan

Lee Hoagland on 03/24/2011 01:53am
These are what I carry in my 3" Kimber while in the woods. A .45 ACP is a poor excuse for a black bear/wild hog gun, but if there's one load commercially available that would do the job, it's this one. The meplat does not have the surface area of a WFN or SWC, but it's radiused sides aid in feeding. Many 1911s are unable to feed WFN/SWC bullets, but my Kimber handled these just fine. These are extremely accurate. I was able to put three rounds through the same hole at 10 yards. Recoil is a bit stiff, but very manageable and not nearly as strong as the BB 230gr loads. Have not had the opportunity to test them in water or ballistics gel, but I would imagine they would easily perforate 24" or more.

*At one point, I was unable to chamber these in my Kimber. The feed ramp had become very dirty from 100 or so rounds of CCI Blazer and neither slingshotting the slide or depressing the slide stop would chamber the round as it stuck on the feed ramp. A sharp slap to the rear of the slide did the job, and subsequent shots chambered with no hiccups. As with any ammunition, be sure it functions in your weapon before carrying it. I just wanted to note that it's possible that you will have trouble chambering the first of these but have no feeding problems beyond that. Just to check, I stripped the pistol and wiped the feed ramp clean and the issue was resolved, so be sure your feed ramp is clean when carrying this load.
John Null on 07/23/2010 12:26pm
*** WOW *** Five stars out of five stars.

So far every thing that I wanted the P .45 ACP Cast Bullets to do have worked flawlessly. Almost no centerline of bullet drift occurs when fired thru hydro-bladder. Note: in addition to the water bladder ( 2 ft. thick ) we used lumber to simulate hard targets and these cast bullets passed thru with only slight bullet expansion and the bullet path remained true within .50" radius. Thanks BB

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Friends and Customers, 08-18-20


All shooters are being inconvenienced with what is happening to our society and the rush it is causing on ammo supplies. We have LOTS of ammo in stock and are making more at a huge volume on a daily basis. If our web site allows you to order any item, that means it is in stock—WE DO NOT TAKE ORDERS FOR ITEMS WE DO NOT HAVE! So, please do not email and ask if items are in stock. If they aren’t, the shopping cart will not take your order.

We have hundreds of customers to get orders to on a daily basis. In order for us to accomplish this for our customers, we ask the following.

  1. Be sure of what you are ordering. You are going to get what you ordered.

  2. Do not contact us and ask to change an order you’ve already placed. When we manually change orders it requires a lot of time that we do not have during this rush and it keeps us from serving all of our customers. If you’d like to change an order, we can no longer do that till things slow down, so simply place another order for more product, but PLEASE, NO MORE CHANGES after the fact!

  3. We NEVER have and never will take ammo exchanges or returns and then turn around and re-sale that ammo to unsuspecting customers as factory new ammo—this is not safe nor is it fair to customers who are buying what they think is new and safe ammo. No ammo is tamper proof! So please stop asking to exchange or get a refund for ammo you ordered, but have changed your mind about.

  4. Please do not contact us and ask for tracking numbers or “when will my ammo ship”? Our system automatically emails out tracking numbers on the orders we ship each day, however, because these emails are coming from a corporation shopping cart, many of these emails may go to your spam folder……..please look there. If it is not in your spam folder, that means we have not yet shipped. At current order rates, we are shipping within 5-7 business days of the time an internet order is placed. Please sit tight. Your ammo will arrive at the same time if you track it or not and will certainly arrive later if we are swamped answering questions instead of getting orders shipped. When 30-50 people per day send emails asking for tracking information and we have to pull that information up, then type it out and email it, it takes a huge portion of our work day that we should be using to ship those orders to customers in need. Please leave us alone so we can serve all of you. (ship to you) It’s a bit selfish, during times of shortages, when so many folks need to protect their families, to slow us down because you ordered carelessly or want to change your order. Right now, we expect you to do your part to help us all get the ammo we need in our troubled country.

These measures are hopefully temporary and will not be needed for long as we enjoy the interaction with our customers, so please, for the time being, be mindful of all those others who are also trying to get ammo during what I think is a societal meltdown/emergency. Hopefully, we can serve you all. We want you and your families to be armed and safe and we wish you the best during these trying times. My biggest concern is that things will worsen yet more, for a while. Until things straighten out in our government and society, we will have to streamline our customer service in order to serve all customers. Thank you for your understanding.

Good shooting and God bless,

Tim Sundles

I Understand