Thread: Glock reloading
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Old December 31, 2012, 08:13 PM   #2
Marco Califo
Senior Member
Join Date: April 4, 2011
Location: LA
Posts: 1,145
Glock says not to reload

Glock says not to reload, as it will void your warranty. The reason is that Glock chambers are not 100% supported and may/will bulge cases slightly in one spot. To understand this take yours apart and look into the breach end of the barrel, slide a cartridge in. You will see that the "ramp" area does not support a small part of the case. Different generations of Glocks have different degrees of this issue. Newer are better; some one posted pictures here.

There are products on the market to "repair" Glock fired brass, essentially by pushing the case all the way through a die. I am aware of these but, have not experienced the need to spend money.

Bottom line is it is a personal decision. I do reload for my 23. I use once fired 40SW brass (don't know if it was fired in a Glock before). I shoot target loads and have never had an issue or noticed the supposed bulging. I have reloaded the same cases again, with no problem.

Another possibility is using a different barrel. I use a Lone Wolf 9mm conversion barrel, which is fully supported, stainless steel and conventionally rifled. Glocks come with polygon bore rifling, and Glock says not to use cast bullets.
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