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single load or out of the mag?

This is a discussion on single load or out of the mag? within the Accuracy forums, part of the M14 M1A Forum category; No doubt been dealt with before but with new members perhaps a revisit. In particular with the M14 rifle, is it held by most that ...


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Old January 3rd, 2017, 02:03 PM   #1
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single load or out of the mag?

No doubt been dealt with before but with new members perhaps a revisit.

In particular with the M14 rifle, is it held by most that single loading is likely to produce better groups than when thru the loaded magazine? I seem to notice a tendency in my LRB for the first shot loaded from the mag at full load velocity, no "riding the bolt" part way, can sometimes cause that first round to be out of the group where shots 2,3 and 4 or 5 might go. Not every time but often enough to annoy the bejabbers out of me. Thanks.

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Old January 3rd, 2017, 02:20 PM   #2
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The main reason for my single loading is that my accuracy handloads are too long to fit in a magazine. I like to seat bullets .010 from contact with the lands.

Using factory ammo like GMM which is back .070 to .080 from the lands it makes very little if any difference whether loading is done single or from the mag.

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Last edited by nf1e; January 4th, 2017 at 02:34 AM.
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Old January 3rd, 2017, 02:23 PM   #3
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since the bolt group was designed for the round to slip in underneath when it gets stripped from the mag,won't that damage the extractor,and/or,possibly cause a slam fire?

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Old January 3rd, 2017, 02:27 PM   #4
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When I say single load I don't mean hand fed into the chamber, I mean loaded singly from the magazine one at a time, or as some do ride the round into the chamber more softly with less bolt force but still fed off the top of the mag.

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Old January 3rd, 2017, 02:28 PM   #5
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Originally Posted by nf1e View Post
The main reason for my single loading is that my accuracy handloads are too long to fit in a magazine. I like to seat bullets .010 from contact with the lans.

Using factory ammo like GMM which is back .070 to .080 from the lans it makes very little if any difference whether loading is done single or from the mag.

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^^^this would be the only reason I would fire single shots^^^

If you wanted to try berger bullets, you would have to go this route as they traditionally don't like to jump to the lans.

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Old January 3rd, 2017, 02:42 PM   #6
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^^^this would be the only reason I would fire single shots^^^

If you wanted to try berger bullets, you would have to go this route as they traditionally don't like to jump to the lans.
I was using Berger 135 FB until they stopped making them and have started using Berger 150 FB recently.

I do hook the round into the mag for single loading. The tip protrudes above the front of the mag.

The best set up I have found for this is the Bula Defense Systems XM21 Version II because I can single load from the left side under the scope without breaking position.



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Old January 3rd, 2017, 03:05 PM   #7
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When shooting groups, I always single feed my handloads. I don't know if it helps or not, I've never tried loading the magazine.

Mostly because I always break my position between rounds just to pace my shots at a minute each. That seems to keep the barrel temperature fairly constant and helps me maintain my concentration when shooting.

I forgot to add that I retrieve my expended casing for each round and return it to its position in the cartridge box. In this way, I can determine if any outliers may have been case related.

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Last edited by 4Quangs; January 3rd, 2017 at 03:27 PM.
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Old January 3rd, 2017, 03:35 PM   #8
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When shooting groups, I always single feed my handloads. I don't know if it helps or not, I've never tried loading the magazine.

Mostly because I always break my position between rounds just to pace my shots at a minute each. That seems to keep the barrel temperature fairly constant and helps me maintain my concentration when shooting.

I forgot to add that I retrieve my expended casing for each round and return it to its position in the cartridge box. In this way, I can determine if any outliers may have been case related.
Do you soft load the rounds or just give them full bolt thrust?

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Old January 3rd, 2017, 04:25 PM   #9
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Push the single into the magazine, release the bolt catch and let her fly home. Two reasons: safety first and the rifle absorbs the shock of seating exactly the same with every round.

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Old January 3rd, 2017, 04:26 PM   #10
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That's how I do it too. Thanks.

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Old January 3rd, 2017, 07:12 PM   #11
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I have not tried 'long loading', single loading yet... I just load 5 rounds in my 10 round magazine reloaded to max magazine length and try to get in a position where the recoil puts be somewhat back on target for the next shot.

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Old January 3rd, 2017, 07:15 PM   #12
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Originally Posted by nf1e View Post
I like to seat bullets .010 from contact with the lans.

Using factory ammo like GMM which is back .070 to .080 from the lans
I always thought it was "lands."

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Old January 3rd, 2017, 07:25 PM   #13
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"lans" is right before "groovy"... And some of us land hard

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Old January 3rd, 2017, 08:20 PM   #14
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Quote:
Originally Posted by WaM14gunner View Post
No doubt been dealt with before but with new members perhaps a revisit.

In particular with the M14 rifle, is it held by most that single loading is likely to produce better groups than when thru the loaded magazine? I seem to notice a tendency in my LRB for the first shot loaded from the mag at full load velocity, no "riding the bolt" part way, can sometimes cause that first round to be out of the group where shots 2,3 and 4 or 5 might go. Not every time but often enough to annoy the bejabbers out of me. Thanks.
There is a reason for that, and it depends on how close to 100% full the case is. Tests have shown that there are small, but measurable, velocity differences depending on how far away from the flash hole the bulk of the propellant is. The closer to the flash hole, the more propellant ignited initially the higher the pressure. Allowing the bolt to slam the round into the chamber seats the propellant at the base of the bullet.

Feeding the first round from the magazine duplicates (better) the feeding of subsequent rounds. The thing is, everything needs to be as consistent as possible.

If you place the round in the chamber and ride the bolt home, that's fine, as long as you do all of the rounds that way.

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Old January 4th, 2017, 02:32 AM   #15
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Originally Posted by Samuel Seeley View Post
I always thought it was "lands."
Not if you live in la la lan like me. Humor
I edited my post to keep all the proof readers happy.


Last edited by nf1e; January 4th, 2017 at 07:24 AM.
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