How Do "You" Break In A Factory New Autoloader

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Hello friends and neighbors// Received my CZ 75B .40s&w DA/SA today. I need opinons on what to do, or not do before shooting tomorrow.

This is my first factory new handgun and also my first full size semi-auto. I have a CZ2075RAMI in .40s&w and a Stoger Luger in .22,both are fine handguns.

I have applied :
--White lithium grease to the exposed areas of the slide and worked it many times.
--A drop of oil to the hammer/trigger mechanisms
--Ran a dry patch down the barrel then a patch with hoppes 9 lube oil then another dry patch.

And that is it.

Looking through the ejection port the inside of the slide appears to have a thin brownish residue, probably old lube. I left it alone for now, is this normal?

Factory mag 1 is loaded with :
10 Federal 180gr. FMJ

Factory mag 2 is loaded with:
3 Winchester Supreme Elite bonded PDX1 180gr.JHP
3 Corbon 165gr. JHP
4 Hornady 155gr. Tap FPD
Both mags 1 and 2 have numbered round indicator holes located in the back(10rd ).

Mag 3 CZSP01 40:
Numbered round indicator holes in the side(12rd)
Works in my RAMI so it "should" work in the 75B
Loaded with:
7 PMC Bronze 165gr. FMJ-FP
5 Federal 180gr FMJ-FN

Mag 4 no name, round indicator holes in the side, no numbers (10rd)
A mix of all 5 different round previously mentioned, I have the order in my note book.

I will make note of ammo accuracy and any FTF/FTE.
Do you have other 40s&w ammo preferences?

If my search -fu is weak and there is a link to breaking in a new autoloader please share it.

Thanks folks, content
 
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I'm not sure there's much to "breaking-in" a new autoloader pistol, except to lubricate it real good, and then run a lot of rounds through it.

Clean her up, and store her where she won't get rusted or buggered.

Get a good holster.
 
Congrats on the new gun. I don't own a CZ but at the very least I'd field strip it and remove the brown residue you mentioned. It might collect debris when firing and eventually cause some issues.

After cleaning I'd apply a small amount of lube to the slide rails, barrel, and underside of the slide. You can look up what kind of lube to use and there are a great number of opinions. White Lithium grease would have to be at the bottom of my list. It loves dirt and I'm not sure how it'll stand up to the heat and powder residue.

Cheapest and easiest to find of all the lubes I've used or seen here is Mobil 1 engine oil in something like a 10-30 weight.

If you can post pictures of your new jewel and let us know how the range work goes.
 
Just for the sake of comparison, a CZ isn't a Kahr, but Kahr recommends you completely clean one of their pistols before you fire the first round out of it. Clean completely, relube as directed and run 200 rounds through it to detect any short falls. By that time you will have discovered any problems and can deal with them as necessary. Aside from the specific round count, that seems to be fairly good advise for any new pistol. Shoot 'em, keep 'em clean and enjoy the fun.
 
Thanks folks // Had to get a deer burger.

I will change from white lit. // old habits...
Would you bother with the SD ammo until you've run through a bunch of cheaper target?
I'd like to know straight away how the 75B feeds many types of ammo but price is an issue.

Thanks for all the helpful comments.
 
I run a couple of boxes of cheap hardball through any new semi-auto before I test any of the high-price spread in it. No need to waste money on the more esoteric stuff if the pistol itself needs attention because it's choking on fmj ammunition.
 
Breaking-in means shooting enough bullets through it so that you are comfortable in the reliable operation of that firearm.

The amount of bullets depends on the owner.

For a personal defense pistol, I like 500 rounds without any hitches in function. Preferably, the ammo should be your choice of defense ammo.
 
i agree with the above, what i have always done with a new gun is, clean all the factory junk out of it, weather you can visually see it or not it is there, then lube. go to the range and see how i runs.

as far as reliability goes i have never had a gun that i had to "break in" to make it reliable. all the guns that i have had were and are still reliable right out of the box, or they were unreliable out of the box(just one).

the only thing that "breaking in" has done for me that i have seen, is possibly make the slide smoother in operation, and i can defeintly tell after about 1000rds that xds trigger's get better
 
I'm big on Militec-1, so each new gun I get is field stripped, cleaned, Militec applied and it goes under a hairdryer to warm up the metal. Before I shoot it the first time I relube the main parts fairly heavily with more Militec, then I shoot as much as I can stand...or afford.

Then I reclean and relube. I used Eezox for rust prevention, Militec for general lube and a touch of TW25b on high wear areas.
 
Have a bunch of CZs and they all seem to be shipped NIB in a heavy 'bear-grease!!'... Just do a normal 'field-strip' (as you did/outlined), get all that grease cleaned off and you're ready to go.
That 75B .40 is a great gun and doesn't need a bunch of babying... my trigger was VERY SMOOTH out of the box and needed ZERO break-in.
My standard routine has always been HOPPES #9 for the barrel/bore, BreakFree or Weapon Shield CLP for general lube and just a drop or so of a Slide-Glide or Weapon Shied Grease for the rails. That's always worked very well for all my pistolas. ENJOY!
 
I know the procedure with a glock is to insert A loads mag and release
the slide and you are now reAdy to roll. Some manufacturers ship pistols that are need break in. Poor design or poorly built. Need 100% reliabilty anything else is a distant 2nd
 
Buy 'em used! They're already broken in!

J/K. I usually just field strip (sometimes detail strip) and lube; maybe a little dry firing for function testing. Then it's off to the range.
 
Field strip, clean, visually inspect every part, lube, re-assemble, check mechanical function, range, load , fire!

I like to give them a good going over before the first outing, never have found anything major to worry about except perhaps a little bit of extra grease in a spot or two.

I've had good luck with all of mine this way.
 
Methinks you've spent too much time on gun forums reading about problems from keyboard commandos, and too little time reloading or shooting. Go do one of the latter two.

Run a mag or two of your chosen ammo or types through it. Then think about it. Why post your magazine loadings in advance of shooting it? Stop keyboarding, start shooting.
 
Breaking-in means shooting enough bullets through it so that you are comfortable in the reliable operation of that firearm.
Click to expand...
That might be true for most of us, but not for the "hernia busters" like Baer, Brown & Wilson...For them, they want you to take care of the "shavings" at the expense of about 10 to 15 boxes of ammo...:scrutiny:
Enjoy your CZ: field strip, clean & lube, and have some good practice w/FMJ. :)
 
Buy 'em used! They're already broken in!
Click to expand...
+1. A quick once-over, a little bit of oil, then into the range.

Most of mine came off the used market. I own four Kimbers and didn't pay more than $650 for any of them. Had a slightly used $450 Mil-Spec SA (not the GI) and a $500 stainless Colt 1991A1.
 
New, I just field strip, clean like normal, then shoot a lot

If I buy used, I'll typically detail strip/clean it first
 
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