Getting my 300BLK to cycle

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ArborRon
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Getting my 300BLK to cycle

Post by ArborRon » Sun Nov 12, 2017 5:54 pm

What's the trick to getting a 300 BLK to cycle ?
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Re: Getting my 300BLK to cycle

Post by Nievo » Sun Nov 12, 2017 8:15 pm

Gonna need a little more info then that. I'm running a 9" barrel on mine and have never had a problem cycling with subs or supers and suppressed or non.

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Re: Getting my 300BLK to cycle

Post by ArborRon » Mon Nov 13, 2017 4:47 am

Cycled the first 3 rounds fine after that I had to use the charging handle to chamber a round.
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Re: Getting my 300BLK to cycle

Post by Torakan » Mon Nov 13, 2017 8:29 am

What upper are you running? Sounds like a gas problem. Adjustable gas block? What ammo are you shooting? I’ve got a 9” and a 16” and haven’t had any probs shooting suppressed and non suppressed.
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ArborRon
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Re: Getting my 300BLK to cycle

Post by ArborRon » Mon Nov 13, 2017 7:36 pm

16" spikes upper 220gr ammo
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Re: Getting my 300BLK to cycle

Post by edzz » Mon Nov 13, 2017 11:11 pm

what length gas system?
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Re: Getting my 300BLK to cycle

Post by edzz » Tue Nov 14, 2017 10:29 pm

The first time out with my 300 I had a few problems. When I mentioned it to Ron he told me to lube the crap out of it during break in, that worked for me, with in 30 rounds no more problems.

That said it's my understanding that a lot of people that are running other than pistol length gas systems no mater the barrel length play hell getting their blackouts to function reliably with out an adjustable gas system dialed in for the specific load on hand.

I have had good luck running sub's to supers with a fixed gas system. I am running a 10.5 inch KAK barrel with a pistol length gas system.
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Re: Getting my 300BLK to cycle

Post by ArborRon » Wed Nov 15, 2017 4:46 am

Thank you Ed I'll see about lubing it again the bolt is brand new or try a different BCG, have a great day brother, Ron.
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