Feeding an 9mm AR

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If you're using reloads for 9mm carbine, pay attention to the reloading manual. Some of the loads I've found listed have a note (*not for use in rifles").

I started out with 147 grain bullets and found that the timer had trouble picking up the sound of the shots. I switched to 124 grain and haven't had any more problems.

I don't think he's worried about a timer at uspsa or steel challenge, just some fun pinker loads.
 

Fyrtwuck

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You mean the heavier bullet is quieter? I would think that's a good thing?

It would be if I were shooting suppressed. In competition the timer has to hear the rounds go off. I've had to do several re-shoots cause the timer didn't pick up the sounds of the shots and my time was wrong.
 

Perplexed

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It would be if I were shooting suppressed. In competition the timer has to hear the rounds go off. I've had to do several re-shoots cause the timer didn't pick up the sounds of the shots and my time was wrong.

Maybe the timer needs to visit the hearing aid thread...
 

Fyrtwuck

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Fire - Which books are you useing ? None of mine have that warning - my lateless books don't--ie Lyman handloader & Ar books and hodgdon 2016 annual

I read it wrong. My bad.

Speer #14. Page 855. "147 grain bullets not recommended for barrels LESS than 10".
 

MikieG7174

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I have an Olympic Arms Glock 9mm carbine. It has shot everything I put into it. I have hit gongs atv335yds regularly with my EOTECH. Many guys hit out to 450yds with a real scope. These are very useful little carbines for sure.
 

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