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00Ghost00
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Posted: 4/2/2012 12:27:37 AM

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Picked up a new CM9 over the weekend for my wife's CCW solution.

I took her to a couple of shows, and had her handle everything on the tables until she found one that felt perfect in her hand.

Anyways, a new gun means a trip to the range for the appropriate break-in.

As such, I've perused through several threads about other's experiences doing the same requisite work , and have a question.

It seems most folks are breaking-in with 100-200 rds, and a mixed set of loads. 115, 124, 147, +p, etc.

Is there any particular good rule of thumb to go by? 100 rds of 115 for initial, 50 124, and then 50 more 147/+p for good measure?

I just want to loosen up the new tightness before giving it to her, so that she can then get comfortable with shooting the gun. I don't know yet what load she's going end up with, but I want to make sure it will cycle things consistently.
PWACommando
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Posted: 4/2/2012 1:39:48 AM
I'm a new CM9 owner. Before I even fired the gun I racked the slide and dry fired it probably 300 times. I kept count of 200 times but add in random dry firings and stuff it was definitely more. Anyway, that loosened the gun up and smoothed out the trigger very nicely. I took it to the range last week and put about 120rds of mixed ammo through, with most of it being Remington UMC 115gr FMJ, plus some Fiocchi 124gr JHP and Winchester PDX1 124gr+P JHP. Nary a hiccup.

I have a feeling you can put whatever you want through it and it won't choke.
TIziks
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Posted: 4/2/2012 4:10:18 PM
I would use whatever is cheapest for the break-in. As you stated, you're just trying to get it to loosen up a bit. After that try anything you might want to carry. I've not tried any 147gr in my PM9, but the 115 and 124 work great.
00Ghost00
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Posted: 4/2/2012 5:29:59 PM
[Last Edit: 4/2/2012 5:31:19 PM by 00Ghost00]
Ok, cool.

I forgot about taking some snap-caps, and cycling the action to loosen things up too. I've got a couple laying around, but I think I'll go grab enough to fill the magazine, and run a 100-200 cycles through it to help things out prior to the range visit.

I've got $150 in store credits for CTD. Guess I'll be paying them a visit, and grabbing several different loads to take to the range.

Thanks for the input!
ricksrifle
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Posted: 4/2/2012 10:00:16 PM
[Last Edit: 4/2/2012 10:04:47 PM by ricksrifle]
I dry fired Wifey's PM9 quite a bit before it's first range trip. If I remember correctly, I put about 250 rounds of 124 gr ball and about 50 rounds of 147 gr Gold Dots through it before either of us carried it. I've never had a problem with it. I carry it more than she does, it spent the day today in my pants pocket. I may buy a CM9 for me.
Handguns » Kahr