300 BO Mags

[dagdog]

I've been using Mags from Anderson Arms specific to the 300BO. I am getting failure to feed every 3-4 shots shooting subs.

Anyone using these mags and if so are you having any problems? And if not using this mag what are you using and what are the results.

[ultralite09]

Never used those but the 223/556 Magpul P-Mags have never given me any issues at all.

[Polaris700]

Never used those but the 223/556 Magpul P-Mags have never given me any issues at all.

Same here. never had an issue.

[Tony Pic]

Never used those but the 223/556 Magpul P-Mags have never given me any issues at all.

Ditto. But since you are using subs, are you sure the FTF are NOT the result of using subs? Most subs will not cycle the action.

[KDinTX]

Check your feed ramps to see if they are binding there, been using regular pmags for supers and subs, had to open the feed ramps a little to cycle subs reliability. Gun will cycle super/subs without issue with adjustable gas block.

[Tractorguy]

Ditto. But since you are using subs, are you sure the FTF are NOT the result of using subs? Most subs will not cycle the action.

This right here, under-gassed.


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[Dirt_Dance]

Never used those but the 223/556 Magpul P-Mags have never given me any issues at all.

I run subs suppresses and have never had a failure with my 556 PMAGS. They work great

[dagdog]

Thanks for the input. I should have given more info. I am using a suppressor and adjustable gas block. I will take a look at the feed ramps and try the PMAGS.

Thanks

[mojohunter]

300 BO Mags

Have had nothing but good luck with 5.56 Magpul pmags.

Magpul makes 300 BO pmags. Have several now. The feed ramps are supposedly a little wider than the 5.56 magazines. I bought them because they are stamped 300 blk. So I could keep all my 5.56/300bo pmags separate.

[ultralite09]

Thanks for the input. I should have given more info. I am using a suppressor and adjustable gas block. I will take a look at the feed ramps and try the PMAGS.

Thanks

That makes more sense why you might have issues, I'd try one p mag first to see if that fixes it, if it doesnt, might just have to tune the block a bit.

[bowhntrmatt]

Magpul pmags.

I’ve ran hundreds of rounds through my suppressed SBR without a hiccup.