Will 300 BLK work in .223 AICS mags?

Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge.

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2bad4u2
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Will 300 BLK work in .223 AICS mags?

Post by 2bad4u2 »

I'm considering an AICS chassis for my Rem 700 project and I'm curious to know if anyone has tried the 300 BLK with .223 AICS mags? Do they work without modification? Before I plunk down $1,000 for a stock I'd like to know. :wink:
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300Blk
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Re: Will 300 BLK work in .223 AICS mags?

Post by 300Blk »

I saw someone doing it. I did not ask them how it worked, but they did not say it was not working.
jbuck
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Re: Will 300 BLK work in .223 AICS mags?

Post by jbuck »

2bad4u2 wrote:I'm considering an AICS chassis for my Rem 700 project and I'm curious to know if anyone has tried the 300 BLK with .223 AICS mags? Do they work without modification? Before I plunk down $1,000 for a stock I'd like to know. :wink:

I tried it and it was not perfect, but worked 90+% of the time.

I had a different chassis system though that took the aics mags.
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2bad4u2
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Re: Will 300 BLK work in .223 AICS mags?

Post by 2bad4u2 »

jbuck wrote:
2bad4u2 wrote:I'm considering an AICS chassis for my Rem 700 project and I'm curious to know if anyone has tried the 300 BLK with .223 AICS mags? Do they work without modification? Before I plunk down $1,000 for a stock I'd like to know. :wink:

I tried it and it was not perfect, but worked 90+% of the time.

I had a different chassis system though that took the aics mags.
Thanks for the reply. What issues were you having? Was it mag related? Did you have to make modifications to the mag to get them to work properly?
jbuck
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Re: Will 300 BLK work in .223 AICS mags?

Post by jbuck »

FTF was the biggest problem. Had a problem stripping the top round off sometimes. It usually happened when I was working the bolt too fast, I would have to slow down and the reliability would improve.
mak91
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Re: Will 300 BLK work in .223 AICS mags?

Post by mak91 »

I have 2 of these mags that I use with a Howa action that has a 300-221 barrel and CDI bottom metal. When I first got the mags I did notice that the rounds would sit a bit low and off the feed lips near the bottom of the case. 223 rounds did the same thing though. I took the spring out of the mag and stretched it some, seems to help keep the rounds sitting flatter and give a bit more pressure on the rounds. I have had zero feeding/extraction issues with the above setup.
hoser
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Re: Will 300 BLK work in .223 AICS mags?

Post by hoser »

Mine works perfect.

Remington 700 with Sako extractor.
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