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Glock 27
lwal50
Member Posts: 23 ✭✭
I have a Glock 27 .40 that I have had for about ten years. I haven't shot a box of shells through it yet. I have it for protection only and not for shooting on the range but when should I have to worry about KB. Reading on this fourm it's happens a lot with .40 Glocks but is it after shooting a bunch of loads and not cleaning or what? Thanks for your help.
Comments
Recently bought a NIB Glock 27 that is "supposedly" a Generation 2.5!
Never been fired....the spent casing in the box says Dec. 2006.
Serial #: MFE 398
Question:
Is this a true Generation 2.5 and how does it rank with the other generations?
I gave $500 for it. Good deal or no? [;)]
Also, wheres the best deal to buy them
Thanks
Eric
thats'me
Jim
But better safe than sorry, as long as your shooting factory ammo that it was designed for, and with proper cleaning and maintenance, you should have hundreds of thousands of rounds of life thru your glock. Probably need to change the recoil spring bout every 5 to 8 thousand rounds though too
Part of the theory for kbs are that Glocks have a partially unsupported chamber..if the round is over pressure then that pressure blows out the back of the casing and down through the magazine well. It was determined to be an ammo issue and the ammo company took repsonsibility for it. Several hundred rounds were found to be effected. When they were produced the bullets were compressed to far down into the casing. This caused two problems...one many of them failed to feed because the casing were flared out, and the second was that the compressed powder did not burn as designed causing an overpressure.
Goto :http://www.thegunzone.com/glock/glock-kb-faq.html
They cover it pretty well. I have pictures of this particular gun I will attempt to attach them. The .40s tend to have a higher number of kbs...but no one knows why...it could be simply because there are more .40 Glocks out there than any other Glock. Or it could be because the .40 is a higher pressure round.
Glocks are not the only ones that have kbs.....H&Ks have them aswell as many other pistols....just seems to be attributed to Glocks
There are tens of thousands of these guns out there, and people shoot Glock .40s every single day.
Where you might get into problems is with reloads and unjacketed all-lead bullets. Extra-heavy 185 grain bullets can lead to higher pressures and also should probably be avoided. If you use 165 grain factory loads you'll be fine.
quote:The .40s tend to have a higher number of kbs...but no one knows why...it could be simply because there are more .40 Glocks out there than any other Glock. Or it could be because the .40 is a higher pressure round.
To be clear, .40SW is suppposed to run at a max pressure of 35,000 PSI, the same as 9mm luger.
But if you figure that most .40 guns are built on frames and actions originally designed for 9mms (that includes the Glock), then the larger .40 will have less margin for safety. Supposedly trying to cram the longer .40 round into an action originally designed for 9mm requires a longer feed ramp, and leaves more of the case head unsupported.