[44bulld0g]

Hey Guys!
Just got back from the range and I was curious about breaking in your 2011......
I know some manufacturers break in processes are different......

1. Should I clean the pistol or just oil it?
2. How many rounds are required to break in a pistol?
3. I had some hiccups with my Cos-21 but at the end of the shooting session ran almost flawless... ( I know you will check the manual it didn't come with one)
4. Do you recommend tuning extractors?

Thanks guys! All in all a great day! I shot around 260 rounds!

 

[rayzer007]

I clean and lightly oil my weapons after every shooting session. I would also shoot it a few more times before making any adjustments.

 

[Snoopy47]

As a competitor, when I have a new gun, or make changes, I just practice with it regularly until it functions during practice that gives me the confidence it won't hiccup.

 

[44bulld0g]

@Snoopy47 should extractors be tuned on a 2011? My ejection pattern is different

 

[Lowspeed88]

Nice gun.

I follow Wilson combats break in procedure. bill Wilson is pretty educated on them I’d say, and I trust his experience…


Load and unload your new magazines several times and keep them loaded for several days in advance of your first range day to allow the stiff springs to take an initial set. This will make them easier to load and reduce pressure on the bottom of the slide that could cause a malfunction.
Ensure that your pistol is well lubricated with a light oil like Ultima Lube II Oil or Ultima Lube II Lite Oil during break in.
Ultima-Lube II | Wilson Combat
Shoot a minimum of 300- 500 rounds of full charge ammunition through your pistol prior to disassembly and cleaning for the first time. Keep your custom pistol well lubricated throughout this break-in period. If you experience recurrent malfunctions, clean and lubricate your pistol during break in regardless of round count. Firearms will require fresh lubrication when new since most guns leave the shop with minimal lubricant added.
9mm pistols may require service ammunition for break in depending on the grip strength and stance of the shooter.

 

[44bulld0g]

thank you! I really appreciate it! 10mm springs make for alot of tension. I had weird ejection patterns and some issues with returning to battery³

 

[Lowspeed88]

Rack and dry fire it 1000+ times before the next time you shoot it.

 

[Green Dragoon]

You "can" tune the extractor, but the only reason to do it would be if the gun wasn't running right and/or if your brass is getting dinged upon ejection.

Side note: I used to tune extractors. Now, if one isn't working right, I just replace it with a Wilson.

 

[44bulld0g]

I have some spent cases they are destroyed....the brass looks chewed

 

[44bulld0g]

Im not too sure if it was the Slide Stop getting in the way or the MBX magazine but it was locking back to the rear, some jams etc

 

[pgg00]

My staccato P was flawless out of the box. I was running 124 grain. I did lube it at first.

 

[44bulld0g]

Mines in 10mm

 

[MarkCO]

Are your frame rails and the interior of the slide Cerakoted?

With 10mm, it might be beneficial to use a lighter spring and low power ammo to break in.

 

[Lil]

I have some spent cases they are destroyed....the brass looks chewed

That demands urgency in my book. Contact the mnfr with the ammo details and brass photos. Could this be related to battery return problem, if extractor is off, round may feed askew? When return fails, examine base/face alignment and extractor/rim interface, then eject (without chambering) and inspect round for undue pressure point. Good luck.

 

[44bulld0g]

That demands urgency in my book. Contact the mnfr with the ammo details and brass photos. Could this be related to battery return problem, if extractor is off, round may feed askew? When return fails, examine base/face alignment and extractor/rim interface, then eject (without chambering) and inspect round for undue pressure point. Good luck.

 

[MarkCO]

I'm going to say slide velocity is WAY too high if I'm reading those right.

 

[44bulld0g]

as you can see it happened alot @Lil...
so looking at the internals the slide stop is cerakoted and it looks to be causing the slide locking to the rear

 

[44bulld0g]

I'm going to say slide velocity is WAY too high if I'm reading those right.

@MarkCO this was a combo of ejection/double feed issues..... the gun is brand new, its a 10mm and as the gun was shot more it became extremely extremely dry..... at the end of the 250 rounds she was working ALOT better

 

[MarkCO]

as you can see it happened alot @Lil...
so looking at the internals the slide stop is cerakoted and it looks to be causing the slide locking to the rear

If that was mine, I'd be on the horn, getting a shipping label sent and make the manufacturer fix that. 🤕

 

[44bulld0g]

View attachment 1150143

they were not ejected like that just to be clear