Buffalo Bore Heavy .40 S&W +P 155 Gr. Jacketed Hollow Point- Box of 20

This +P ammo is loaded to higher pressure levels, therefore please make sure that your firearm has the necessary chamber support for this round. If you have any doubts of whether or not your firearm is suitable for this ammunition please have a gunsmith inspect it, or you are more than welcome to contact us.

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 potential life-saving advantage - you don't want to be blind after you fire one shot in a life-threatening, high-stress situation.

Buffalo Bore never use extra long laboratory barrels to produce othier advertised velocities, which they feel is dishonest to the customer as those extra long barrels produce extra high velocities, which you cannot duplicate with stock revolvers in the real world. Instead, they use stock firearms and you can see the velocity results below.

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 from the Speer #13 loading manual. The second is taken from Hodgdons #27 loading manual.

SAFETY NOTICE:

"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 this 40S&W ammo in your Glock, have an aftermarket 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 buffalo bore ammo in your Glock. It will also likely give you more velocity than the factory Glock barrel. I personally own two Glock Model 23's. Both of mine are going to get aftermarket barrels dropped in so that I can use this excellent ammo in them.  The issue of Glock pistols not having a fully supported chamber is with the 40 S&W cartridge only, not 45 acp, 10mm, 9mm or 380 auto. While Glocks chambers are not fully supported in any of those calibers, only the 40 S&W brass is weak enough in the web for it to be a safety issue. I REPEAT, only the 40 S&W is a safety issue with chambers that are not fully supported. You do not need to be concerned with this issue when using Buffalo Bore 45acp+, 10mm, 380 auto+P or 9mm+P or +P+ ammunition in Glock pistols.

This ammunition is new production, non-corrosive, in boxer-primed, reloadable brass cases. 

Technical Information:

• Caliber: .40 S&W +P
• Bullet Weight: 155 grains
• Bullet Style: Heavy Jacketed Hollow Point
• Case Type: Brass

Ballistics Information: 

• Muzzle Velocity:
• 1318 fps - Custom made 1911 with Nowlin (5inch barrel)
• 1249 fps - Taurus PT 100 (4.9 inch barrel)
• 1221 fps - Sig 229 (3.75 inch barrel)

• Muzzle Energy:  +-582 ft. lbs.