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Home » Ammunition » Pistol | Rifle Ammo » Shop Centerfire Ammo by Caliber » .400 - .444 Caliber » 40 SMITH & WESSON
Tuesday 06 October, 2015  
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Buffalo Bore Handgun Ammunition 23C/20, 40 S&W +P, Full Metal Jacket (FMJ), 180 GR, 1100 fps, 20 Rd/Bx

Buffalo Bore Handgun Ammunition 23C/20, 40 S&W +P, Full Metal Jacket (FMJ), 180 GR, 1100 fps, 20 Rd/BxOut-of-Stock

Price:  $11.99

Bulk Price:  10+    $11.39 each
Buy more and save!

MPN:  23C/20
UPC:   651815023038

Attention!   Ammo Restrictions - See Below...  ↓

* You must be 18 to purchase shotgun ammo, or 21 for rifle & pistol ammunition.
* Non-returnable item. For safety reasons, we cannot accept returns on ammo.
* Make sure you use the correct ammunition in your gun.
* Check your local laws before ordering.

Heavy .40 Smith & Wesson +P Ammo - 180 gr. F.M.J., 1,100 fps/M.E. 484 ft. lbs., 20 Rd/Bx

All Buffalo Bore Heavy 40 S&W +P loads use flash suppressed powders that give high velocities at low pressures. Since over 90% of all human shootings in the USA happen in low light, we believe that flash suppressed powders are a potentially life saving advantage - you don't want to be blind after you fire one shot in a life threatening, high stress situation.

There is such a variety of 40 S&W pistols in public use that we will not determine what pistols are compatible with which 40 S&W +P loads - this is your responsibility! We will add that this ammo is safe in pistols that use a fully supported chamber. Please read the safety notices below. The first one is taken form the Speer #13 loading manual. The second is taken from Hodgdons #27 loading manual.


"Some pistols chambered for the 40 S&W cartridge may not provide complete support of the case head. If this condition exists, normal pressure loads such as those shown here can cause the case wall to bulge or rupture at the unsupported point. Contact your firearm manufacturer to determine if your pistol completely supports the case head, or ask a gunsmith to inspect your pistol before using it with ANY ammunition. It is the gun owners responsibility to know his firearm and its capabilities and limitations."


"This data is intended for use in firearms which fully support the cartridge in the chamber. Use of this data in firearms which do not fully support the cartridge may result in bulged cases, ruptured cases, case head separation, or other conditions which may result in damage to the firearm and/or result in injury or death of the shooter or bystanders."

Glock happens to chamber their 40 S&W pistols without a fully supported chamber and both of those above safety notices are likely aimed at Glock. I know of no other 40 S&W handguns being sold in the US that don't have fully supported chambers. If you really want to shoot our 40S&W ammo in your Glock, have an after market barrel that uses a supported chamber, dropped into it. This is a fairly common practice and will give you the safety margin needed to fire our ammo in your Glock. It will also likely give you more velocity that the factory Glock barrel. I personally own two Glock Model 23's. Both of mine are going to get after market barrels dropped in so that I can use this excellent ammo in them.

Check out the velocities below that I shot with these loads in several modern pistols that I own. We don't believe that test barrels are a very real way of determining real life velocities out of real life guns that you will be using. So, as with all of our ammo, we use real firearms to determine real velocities.

Item 23C/20: 180gr. TMJFN

a. Custom made 1911 with Nowlin, 5 inch barrel, = 1111 fps
b. Taurus PT 100, 4.9 inch barrel, = 1042 fps
c. Sig 229, 3.75 inch barrel, = 1038 fps

Item 23C - Exterior Ballistics Charts for several Muzzle Velocities


Muzzle Velocity @ 1300 fps for Item 23C

Muzzle Velocity @ 1200 fps for Item 23C

Muzzle Velocity @ 1100 fps for Item 23C

Muzzle Velocity @ 1000 fps for Item 23C

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

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Substitute 40 Smith & Wesson Ammo Available for Purchase    (See All)
Single Price: 15.99      Bulk Price:   20+    $15.19 each     Bulk Savings of: $16.00
Single Price: 19.49     
Single Price: 17.99      Bulk Price:   10+    $17.09 each     Bulk Savings of: $9.00
Single Price: 15.99      Bulk Price:   20+    $15.19 each     Bulk Savings of: $16.00
Single Price: 15.49     
Single Price: 20.99      Bulk Price:   10+    $19.94 each     Bulk Savings of: $10.50

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(Images, photographs, descriptions, etc. do not necessarily represent the product in its entirety, they are shown for examples only.)