I just bought a Glock 27 and have been researching ammo. I have used Buffalo Bore in the past for other pistols - wanted to get some for my new Glock.
Per Buffalo Bore's web site they advise not to use their ammo in the Glock .40 Cal until you've purchased an aftermarket barrel because Glock .40's have an unsupported barrel and may.....
I imagine I should just use non Plus P ammo but I am wondering given the steller reputation Glock's have why other .40 cals would not have this problem and Glock .40's do (maybe?). Why wouldn't Glock fix this by the shaping the barrel tube differently?
Do I really need to purchase the new barrel (it looks cool) for $125 if I want to use Plus P ammo?
Your thoughts?
Buffalo Bore's Comments:
SAFETY NOTICE
"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."
40 S&W WARNING
"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 23B/20: 180gr. Jacketed Hollow Point
a. Custom made 1911 With Nowlin (5 inch barrel) = 1119 fps
b. Taurus PT 100 (4.9 inch barrel) = 1035 fps
c. Sig 229 (3.75 inch barrel) = 1040 fps
Per Buffalo Bore's web site they advise not to use their ammo in the Glock .40 Cal until you've purchased an aftermarket barrel because Glock .40's have an unsupported barrel and may.....
I imagine I should just use non Plus P ammo but I am wondering given the steller reputation Glock's have why other .40 cals would not have this problem and Glock .40's do (maybe?). Why wouldn't Glock fix this by the shaping the barrel tube differently?
Do I really need to purchase the new barrel (it looks cool) for $125 if I want to use Plus P ammo?
Your thoughts?
Buffalo Bore's Comments:
SAFETY NOTICE
"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."
40 S&W WARNING
"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 23B/20: 180gr. Jacketed Hollow Point
a. Custom made 1911 With Nowlin (5 inch barrel) = 1119 fps
b. Taurus PT 100 (4.9 inch barrel) = 1035 fps
c. Sig 229 (3.75 inch barrel) = 1040 fps

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