Break in ammo , for a brand New mk3 22/45 light ? - RimfireCentral.com Forums

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Old 05-09-2017, 02:54 PM
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Break in ammo , for a brand New mk3 22/45 light ?



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I have many brands in the gunsafe.

Cci blazer, cci mini mag rn, cci sv, cci hp subsonic, rws pistol target, rws riffel target, Winchester t22 ( old, 1990 ish ) sk standard plus, and sk pistol match. ( no REMINGTON 22 lr, in my Home 😂😂😂😂 )

My first Go to, is the cci mini mag.
Is it ok ???? Not to hard in the pistol ???

I have a Smith and wesson 41, and only " sv " ammu , in that old girl ( 1977 )

Is the ruger ok, for " hv " bullets ??

Sendt fra det mørke Jylland. Denmark
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Old 05-09-2017, 03:00 PM
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The CCI Mini Mags would be my first choice for break-in. After 500 rounds you should be able to shoot all your other ammo with no problems. I can tell a big difference in recoil from the Mini Mags to the SV ammo. For matches, like Steel Challenge, my go to ammo will be Mini Mags because of functionality.
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Old 05-09-2017, 03:15 PM
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Thanks 👍👍
I have 500 mini mag, it Will be the start , of my new ruger.
Just have to get the papir for it. It takes 4 to 12 weeks, her in Denmark 🖓

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Old 05-10-2017, 04:52 PM
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40 gr mini mags or any 40 gr HV. I had tons of jams with 36 gr. I was told to try 40 and the jams went away.
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Old 05-10-2017, 05:30 PM
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Any HV ammo it will feed, 40gr RN MiniMags are a fine choice. I'd wait until it has a few bricks through it to use subsonic.
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Old 05-10-2017, 11:59 PM
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I polish the hammer face and the bottom of the bolt ,clean and deburr the mags and my guns seem to run SV or anything else day one.
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Old 05-18-2017, 04:01 PM
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I agree wholeheartedly with a few of the above recommendations concerning using the CCI Mini-Mags for new pistol break-in. The CCI Mini-Mags seem to produce a 'just perfect" amount of "recoil impulse energy" to exercise the recoil spring in the recoil spring assembly so it develops it's working set.
It doesn't HAVE to be CCI Mini-Mags, but those are the most consistent and reliable benchmark for hi velo .22 rimfire ammunition to break your pistol in with. Any .22 rimfire in the 1250 FPS area will get those springs exercised through a shooting regimen. So, as was written above, the springs need to be sent through their cycle more than just a couple of times using a weak manual squeezing process.

Someone asked a while back about life expectancy of the recoil assembly spring. I've seen those springs go for quite a long time and then again, break into two or three pieces after only a couple of hundred cycling's. So, for anyone to attach a life cycle number would require a "voodoo & chicken bones" ritual during a full moon.
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