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Does M4 Need Break In?


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Shot NIB M4 today. I shot Mostly Winchester Super Target #8 shot 1200FPS/3Dram 1-1/8oz. It did not like to cycle this. It did eat up the Lawman 00 Buck I put through it with no malfunctions. Is this common? will I be able to shoot the lighter loads after break in. How many rounds is considered broken in.

Thanks in advance,

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It is common Gerrya, do not sweat it. Send a couple dozen rounds down range, take it home and clean it very well. Then use a high quality oil (I like XF-7) to lubricate everything and your weapon will chamber, cycle and fire everything. regards-d

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