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Four state law enforcement agencies have adopted the .45 G.A.P. as a replacement to their current issue 9x19mm's (NY) or .40 S&W service handguns (GA, PA, SC). The New York State Police, Georgia State Patrol, Pennsylvania State Police, and South Carolina Highway Patrol have all adopted the Glock 37 and .45 G.A.P.

It's a proprietary cartridge that may or may not become mainstream in the future. The standard bullet weights are 185 and 200 grain loadings, neither of which I'll use in a 45 caliber pistol [ I prefer the heavier 230 grain loadings in 45 ].

They are capable of firing 230 grainers out of the GAP, but with the reduced case capacity, they'll not reach the same velocity [ fps ] nor generate the same amount of energy [ fpe ] without increasing the pressures within the case, thereby making it more or less a +P which I also do not want nor need in a 45acp loading.

It does have the benefit of being able to use a smaller frame [ in circumference ] for those with smaller hands who find other 45 guns too big to hold comfortably. In that regard, there are many firearms that will meet or exceed the benefit of the grip size using the 45acp loadings so again, it's not too hard to find a gun in 45acp that will fit your hand without having to resort to the proprietary cartridge which may not be around in a decade.
 

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My problem with the 45 gap for defensive work is the fact that it has no history. It is designed to emulate, roughly, the 45 acp. Now, the 45 acp does everything as well as, if not better than, the 45 GAP and it has been doing it for 104 years. The jury is still out on the 45 GAP. In fact, the 40 S&W is only now, after 19 years, proving its worth as a self defense cartridge. Personally, I don't trust my personal survival to any cartridge that has a proven track record of less than 20 years.

Now the 45 GAP is an interesting cartridge and might be fun for target work and possibly hunting. But, I'm not ready to bet my life on it.
 

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I have to agree with Brownie - .45GAP is the solution to a problem that doesn't exist. You gain nothing over .45ACP, so why choose GAP over ACP? You'll almost always be more limited in ammo choices and availability. If Glock stops supporting it (which, given it's low popularity, is possible) in the future, your choices will decrease even more. I just don't see the point.
 

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Discussion Starter · #10 ·
The Point Is That I Have The Power Of The Acp In A Smaller Package!
If You Dont Trust It I Dont No What You Will Trust! And It Is The Only Ammo The I Can Get Right Now!
 

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Discussion Starter · #11 ·

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The .357 Sig, another relatively new cartridge, at least fills a particular tactical niche by generating .357 Magnum ballistics in an autopistol cartridge, whereas the .45 GAP doesn't appear to offer any substantial benefit over either the .40 S&W or the .45 ACP, the two cartridges it is intended to compete with. It is also perceived by many traditionalists as a bastardization of the "All-American" .45 ACP, and if nothing else, American gun enthusiasts love their traditions. If the .45 GAP had been introduced at the same time as the .40 S&W, it may very well have eclipsed it in popularity, but that window of opportunity seems to be closed.
 

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Discussion Starter · #13 ·
My problem with the 45 gap for defensive work is the fact that it has no history. It is designed to emulate, roughly, the 45 acp. Now, the 45 acp does everything as well as, if not better than, the 45 GAP and it has been doing it for 104 years. The jury is still out on the 45 GAP. In fact, the 40 S&W is only now, after 19 years, proving its worth as a self defense cartridge. Personally, I don't trust my personal survival to any cartridge that has a proven track record of less than 20 years.

Now the 45 GAP is an interesting cartridge and might be fun for target work and possibly hunting. But, I'm not ready to bet my life on it.
I'll send you my target if you want history!
Soo should I just trade it back in for the 10mm?:popcorn
 

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Discussion Starter · #15 ·
To Summarize the Main Reasons for the New .45 GAP Caliber

To propel the same .45 bullets as the .45 ACP at the same general velocities and with the same inherent accuracy as the .45 ACP.

To use a shorter, more efficient .45 cartridge that functions reliably in 9mm/40S&W subcompact, compact, and full size pistols with capacities ranging from 6 up to 12 rounds, and with a grip size that works well with any hand size.

To take advantage of the new 45 GAP cartridge that was engineered to be safely fired in the typical unsupported barrel chamber. The stronger GAP case has more of a safety buffer than both the standard .45 Auto and .40 S&W in order to protect against out of spec ammo and/or pistols.

To allow other manufacturers to quickly convert their 9mm, .40, & .45 based auto pistols into .45 GAP pistols with low R&D costs. How is this possible? Because the shorter .45 GAP cartridge allows the use of 9mm/.40 sized pistol frames and the Glock magazine is semi-double stacked to accommodate 10 rounds of the fat bullet. On the other hand, the slightly longer .45 ACP cartridge requires a larger pistol frame and larger magazine and grip to accommodate the longer cartridge. Therefore 9mm/.40 sized pistols can easily be retooled to support the .45 GAP while this is not possible with the venerable .45 ACP. For example: a .45 GAP would most likely work in a modified Kahr, Sig239, Sigpro, etc, while a .45 ACP would not. It has already been officially accomplished with the Springfield XD (4” & 5”), and Glock 37/38/39.

To take advantage of the .45 GAP costing less than the .45 ACP to produce and load: less powder to do the same thing as the acp, small pistol primers, and a 1/7th inch shorter case saves on unneeded case metal, which even provides less overall weight than the .45 ACP cartridge in bulk.

To demonstrate that .45 GAP and .45 ACP pistols of equal size and ammo of equal power provide a similar general felt recoil since the GAP does the same thing as the ACP by just using less powder with a slightly higher pressure, although this pressure is still 34% less than 9mm/.40 S&W calibers. “Full Power” 45GAP loads are 55 to 70 fps slower than “Full Power +P” 45ACP loads (although Double Tap GAP ammo is equivalent to +P 45ACP ammo) when using the same barrel lengths. This essentially means that the hottest 45GAP loads are a little faster than standard pressure 45ACP loads and therefore 45GAP ammo can be downloaded to easily match standard pressure 45ACP loads for easy controllability.

To take advantage of the short .45 GAP cartridge that can go through the semi-auto feed, extract, and ejection cycle faster than a long cased ACP cartridge. The GAP may work better in micro and subcompact models because of the short slide cycle time which can make it trickier for the longer cased .45ACP.

To take advantage of the slightly higher pressure in the 45 GAP compared to the 45 ACP.

To take advantage of using the short .45 GAP cartridge to load and unload revolvers faster than is possible with the long .45 ACP cartridge.

In a nutshell, the 45 GAP cartridge is an excellent fit in performance, pistol size, cartridge size, and reinforced case strength for added safety that is beneficial to all shooters. And don't forget the magnum power without the noise, 11.5mm/.451 bullet compared to 10mm/.40 & 9mm bullets, as well as using significantly lower pressures than most duty calibers.

For those that really need that full power buzz and bragging rights to having the fastest chariot in town, then by all means get an ACP pistol so you can shoot +P ammo (60 – 100 fps faster than GAP factory ammo, except for Double Tap GAP ammo which is just as fast as +P 45ACP ammo) and so you can shoot .45 Super ammo and get a sore hand to boot. It's more important to use a correctly tuned bullet for a given velocity.
 

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The Point Is That I Have The Power Of The Acp In A Smaller Package!
If You Dont Trust It I Dont No What You Will Trust! And It Is The Only Ammo The I Can Get Right Now!

Morning JETHRO
This is not an argument. You asked for opinions and got some honest responses from guys I think have more experience than most. It was nice that they took the time to respond. I believe they were actually trying to help.
I grew up with a mom who you didn't want to ask an opinion unless you were potentially ready for a "whooping". It might hurt. I have grown accustom to this and really like it. Sadly, not all do and some want your opinion to validate what they're doing or have done (not wish council). I really dislike those type of opinions. As long as it is truthful, not mean spirited, has no agenda and is meant to truly help and instruct...swing big!
Congrats and enjoy your new gun.:thumsup:drinks
 

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Discussion Starter · #17 ·
23 Law Enforcement Agencies have bought the Glock 45 GAP, including North Carolina Sanford Police Department (Glock 37, Winchester 230-grain SXT; Georgia Fulton County SWAT Team (Glock 37, Winchester 230-grain RA45GT); Louisiana Office of State Parks purchased 90 G.A.P. Pistols; Piedmont Triad International Airport – Autopistols 2006.

Alabama, Madison Police Department -- Glock 37 & 38

California, Huntington Park P.D., -- Issued Glock 37/Win. Ranger 230 and G22/Win. Ranger 165 only

Colorado, Denver Police Department – Glock 37, 38, & 39

Georgia State Patrol

Indiana, Evansville, Vanderburgh County Sheriff's Office -- Glock 37 & 38

Kansas, Burden Police Department – Glock 37

Michigan, Reed City Police Department – Glock 37

NC, Greenville Police Department – Glock 37

New York State Police (5,400 Glock 37's replacing their current Glock 17's)

Pennsylvania State Police

South Carolina Highway Patrol

Wyoming, Powell Police Department -- Glock 37
 

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To Summarize the Main Reasons for the New .45 GAP Caliber

To propel the same .45 bullets as the .45 ACP at the same general velocities and with the same inherent accuracy as the .45 ACP.

To use a shorter, more efficient .45 cartridge that functions reliably in 9mm/40S&W subcompact, compact, and full size pistols with capacities ranging from 6 up to 12 rounds, and with a grip size that works well with any hand size.

To take advantage of the new 45 GAP cartridge that was engineered to be safely fired in the typical unsupported barrel chamber. The stronger GAP case has more of a safety buffer than both the standard .45 Auto and .40 S&W in order to protect against out of spec ammo and/or pistols.

To allow other manufacturers to quickly convert their 9mm, .40, & .45 based auto pistols into .45 GAP pistols with low R&D costs. How is this possible? Because the shorter .45 GAP cartridge allows the use of 9mm/.40 sized pistol frames and the Glock magazine is semi-double stacked to accommodate 10 rounds of the fat bullet. On the other hand, the slightly longer .45 ACP cartridge requires a larger pistol frame and larger magazine and grip to accommodate the longer cartridge. Therefore 9mm/.40 sized pistols can easily be retooled to support the .45 GAP while this is not possible with the venerable .45 ACP. For example: a .45 GAP would most likely work in a modified Kahr, Sig239, Sigpro, etc, while a .45 ACP would not. It has already been officially accomplished with the Springfield XD (4” & 5”), and Glock 37/38/39.

To take advantage of the .45 GAP costing less than the .45 ACP to produce and load: less powder to do the same thing as the acp, small pistol primers, and a 1/7th inch shorter case saves on unneeded case metal, which even provides less overall weight than the .45 ACP cartridge in bulk.

To demonstrate that .45 GAP and .45 ACP pistols of equal size and ammo of equal power provide a similar general felt recoil since the GAP does the same thing as the ACP by just using less powder with a slightly higher pressure, although this pressure is still 34% less than 9mm/.40 S&W calibers. “Full Power” 45GAP loads are 55 to 70 fps slower than “Full Power +P” 45ACP loads (although Double Tap GAP ammo is equivalent to +P 45ACP ammo) when using the same barrel lengths. This essentially means that the hottest 45GAP loads are a little faster than standard pressure 45ACP loads and therefore 45GAP ammo can be downloaded to easily match standard pressure 45ACP loads for easy controllability.

To take advantage of the short .45 GAP cartridge that can go through the semi-auto feed, extract, and ejection cycle faster than a long cased ACP cartridge. The GAP may work better in micro and subcompact models because of the short slide cycle time which can make it trickier for the longer cased .45ACP.

To take advantage of the slightly higher pressure in the 45 GAP compared to the 45 ACP.

To take advantage of using the short .45 GAP cartridge to load and unload revolvers faster than is possible with the long .45 ACP cartridge.

In a nutshell, the 45 GAP cartridge is an excellent fit in performance, pistol size, cartridge size, and reinforced case strength for added safety that is beneficial to all shooters. And don't forget the magnum power without the noise, 11.5mm/.451 bullet compared to 10mm/.40 & 9mm bullets, as well as using significantly lower pressures than most duty calibers.

For those that really need that full power buzz and bragging rights to having the fastest chariot in town, then by all means get an ACP pistol so you can shoot +P ammo (60 – 100 fps faster than GAP factory ammo, except for Double Tap GAP ammo which is just as fast as +P 45ACP ammo) and so you can shoot .45 Super ammo and get a sore hand to boot. It's more important to use a correctly tuned bullet for a given velocity.
Jethro,

There is an old saying, "Don't ask a question that you don't want an answer to." You could have saved us all a lot of time and trouble if you had simply posted this to begin with.

As you pointed out, the reason for the development of the 45 G.A.P. was economic. At present, approximately 85% of GLOCK's sales are of pistols chambered for 9mm, 357 SIG and 40 S&W. All of these caliber pistols are built on the same frame. The front and the grip may be bobbed, but they are essentially the same frame. Approximately 15% of GLOCK's sales are comprised of .45 ACP chambered firearms. They necessitate a frame with a larger grip diameter, due to the longer cartridge. But, law enforcement demand for 45 caliber weapons is on the rise while 9mm and 40 S&W are seeing a slight decline. So GLOCK sees an opportunity to kill two birds with one stone. Cash in on the increasing 45 caliber demand while standardizing their frame sizes and creating a market for a cartridge that is, initially, proprietary. The only advantage, to the shooter, is that the 45 GAP can be loaded in a firearm with a smaller grip diameter. As I said before, the 45 ACP is a proven cartridge. Over 100 years have gone into its development. We know how it will perform. We have an idea how a 45 GAP should perform, but until we get actual real world evidence of its performance in combat, we really don't KNOW how it will perform. And, it's survival is largely based on developing a significant demand to make it a viable cartridge. If that fails to happen, it may just disappear into the twilight.

Have fun with your 45 GAP. It should be easy to convert to 9mm/40 S&W if they discontinue the GAP.
 
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