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AR15.COM
11/16/2008 10:32:07 AM EDT
I took my P226 9mm out last weekend and fired some reloads that had CCI primers.
I had multiple light primer strikes, probably about 10-15 out of 75 rounds.
My gun hasn't done this with the same reloads in the past (a month ago), and has
always worked fine with factory ammo.

I did buy the gun used. It's date code indicates it was made in 1995. I'm pretty sure
none of the springs were ever replaced. Could that be the problem? Which springs would
I need to replace? If I were to replace, stock or aftermarket?
11/16/2008 12:04:32 PM EDT
[#1]
CCI's are the hardest of all primers. For a short term fix, switch to Federal primers. I'd suggest giving your SIG to a smith for a new spring kit.
11/16/2008 2:43:15 PM EDT
[#2]
I should have done a bit more research. I bought 1000 of them.
11/16/2008 5:14:54 PM EDT
[#3]
Quoted:
I should have done a bit more research. I bought 1000 of them.


Still not a primer problem, you need to have a gunsmith look at your Sig...any commercially produced gun should not have a problem with any primer, even arsenal type CCIs.
11/16/2008 6:25:58 PM EDT
[#4]
Quoted:
Quoted:
I should have done a bit more research. I bought 1000 of them.


Still not a primer problem, you need to have a gunsmith look at your Sig...any commercially produced gun should not have a problem with any primer, even arsenal type CCIs.


Alright then. Is the main spring (one inside the backstrap) the only spring that needs to be replaced? I have detail stripped my Sig before (I have an armorer's DVD).
11/16/2008 7:19:04 PM EDT
[#5]
Quoted:
Quoted:
Quoted:
I should have done a bit more research. I bought 1000 of them.


Still not a primer problem, you need to have a gunsmith look at your Sig...any commercially produced gun should not have a problem with any primer, even arsenal type CCIs.


Alright then. Is the main spring (one inside the backstrap) the only spring that needs to be replaced? I have detail stripped my Sig before (I have an armorer's DVD).


It may, or may not, be a spring issue.  I clean out the "gunk" in the firing pin channel of my Glocks every now and again.  You may have debris/crap/grease or something else blocking the forward inertia of the firing pin.  You may also be trimming the brass too short, considering that auto cartridges headspace off the case mouth, you may be just pushing the case farther into the chamber.

You have some problem solving to do, bro.  
11/16/2008 7:22:37 PM EDT
[#6]
I used to have a P226 that had light primer strikes all the time. It also frequently failed to lock the slide after the last round fired.
11/16/2008 8:19:02 PM EDT
[#7]
While it may be something else, light primer strikes are indicative of a main spring or hammer strut issue.  Definitely get it checked out.
11/17/2008 4:56:26 AM EDT
[#8]
Before you start replacing parts I think I would check to make sure that the primers were not set too deep. Often reloaders, in an attempt to ensure that the primers do not set too high, will give the priming tool a little extra push, and set to primers too deep.
11/17/2008 7:55:24 AM EDT
[#9]
Your Firing Pin could be bent, fractured, could be rusted, or need polishing. The Firing Pin retaining pin could be peened, or dragging across the flat on the firing pin. The mainspring could be weak, the mainspring could be binding. There could be Trash, a burr, or rust on the firing pin channel. There could be a burr in the firing pin hole area.

Theres alot to look for. I would suspect your reloads first. If your not well versed in SIG pistols I wouldnt venture on messing with the pistol. An armorers video will not show you much. Take it to a reputable smith for a rework or send it abck to SIG and they will make it right.
11/17/2008 9:18:10 PM EDT
[#10]
Take a couple of boxes of factory loads to the range and shoot them.  

Any light primer strikes?  It's the gun.

No light primer strikes?  It's your loads.