June 2, 2013, 12:35 AM | #1 |
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Chambering
On my sig m400 ar-15 i notice that if i put a full 30 round mag in the rifle and use the charging handle to chamber it sometimes wont chamber the round unless i slingshot it really fast or use the bolt release but when im at the range loading only 10 rounds it chambers just fine. i am using steel and aluminum mags.
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June 2, 2013, 01:46 AM | #2 | |
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June 2, 2013, 10:14 AM | #3 |
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It's called "friction". Less upward force with ten rounds in a 30-round mag, so less resistance for the bolt to strip a round out of the mag.
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June 2, 2013, 11:20 AM | #4 | |
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June 2, 2013, 11:48 AM | #5 |
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Good catch, I mis-read the post. However, that's still the same process I was getting at. With 10 round mags I would also assume there'd be less pressure stored than a 30 round mag, but you're right; there's a LOT less pressure stored in a 30 round mag that only has 10 rounds in it.
Either way, his problem is that he's riding the charging handle forward, something that shouldn't be done with ANY auto-loading firearm. Some will let you get away with it (AR-15s with partially-loaded mags, Glocks, etc.), but it's a bad habit to get into.
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June 2, 2013, 03:09 PM | #6 |
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Chambering
I lost an opportunity on a coyote due to riding the handle down. We had just got setup and I had forgot to smack the bolt release before we got in. It was dead silent and I didn't want to make a ton of noise, so I road the charging handle down... Knowing it wouldn't fully lock in, I smacked the forward assist a couple of times.
Anyways, coyote comes busting in 30 sec after we hit the call, I settled on him and squeezed the trigger. Click! Never did get the bolt locked in, even with the forward assist... Lesson learned! |
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