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AR15.COM
3/20/2012 4:52:01 PM EDT
I have a Glock 35 its .40 caliber.I shoot with a KKM precision barrel  which shoots great lead bullets or jacketed.My problems happen when I shoot .357 Sig ammo using another barrel.I am using factory Sig ammo and I am getting light primer hits .Any ideas on what the collective thinks is causing the problem
3/20/2012 5:39:40 PM EDT
[#1]
Headspace issue?
3/20/2012 7:02:49 PM EDT
[#2]
Have you had anything done to the gun, trigger job, different springs?
3/21/2012 6:47:23 AM EDT
[#3]
Some aftermarket barrels require fitting, it's possible the barrel isn't fitted properly and it holding the slide ever so slightly out of battery. Otherwise if you're using an aftermarket firing pin spring, I'd change it back to the factory spring.
3/21/2012 7:16:05 AM EDT
[#4]
Thanks for the replies the KKM barrel was fitted by a gunsmith and the .357 barrel was not.Everything else is stock on the gun.I will look up another smith to fit the barrel as the one that fitted the first  barrel has retired.
3/21/2012 8:19:03 AM EDT
[#5]
If the .357 barrel is a Glock factory barrel, it won't need fitting.
3/22/2012 5:02:58 AM EDT
[#6]
Quoted:
If the .357 barrel is a Glock factory barrel, it won't need fitting.


I don't think Glock makes a factory 5.32" .357 sig barrel.  I think its an issue with the barrel as others have stated.  Also make sure there is no obstruction in the firing pin channel just in case.