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Service rifle loading manual

This is a discussion on Service rifle loading manual within the Ammunition forums, part of the M14 M1A Forum category; By all means use reliable printed data from the major ammunition/component mfg.'s but as previously mentioned visit one of the High Power web sites and ...


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Old June 23rd, 2015, 10:09 AM   #16
Lifer
 
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Location: South Charleston, WV
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By all means use reliable printed data from the major ammunition/component mfg.'s but as previously mentioned visit one of the High Power web sites and even better visit an actual match. There are some competitors that will gladly share their load data with you for their M1A/M14's and there are those that will not share for fear of steering you wrong
and be held responsible for any mishaps. Everyone starts at some level of knowledge but if you find an experienced match shooter he has ability to advise of not only the loads but loading techniques that work. Keep in mind that a load for one's rifle may not work so well for yours. Fortunate for we that reload the 308/M1A combo is that there are volumes of data that has been accumulated over the past 50+ years.

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Old June 23rd, 2015, 11:04 AM   #17
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The thing about a rifle with 50 years of history is that the accurate loads are already known. The best bullets have already been selected. I'm going to overlook the flat base bullets for the moment and that leaves two bullets:

Sierra 168 gr BTHP Match
Sierra 175 gr BTHP Match

There are 3 common powders:

IMR 3031
IMR 4064
IMR 4895

There are 3 common primers:

CCI #34 -- for those who want to use a primer with a thicker cup
CCI BR2
Federal 210M

There is really only one case:

Lake City -- preferably not once fired machine gun cases

This is not to say that there aren't variations on the theme but if you wander up and down the line it's going to be "41.5 gr IMR 4895" (regardless of which Sierra bullet) over and over. Or you will run across a few people using a different, but consistent set of numbers for the other 2 powders.

There are really only 3 loads and everybody I know uses one of them. This article is highly regarded:

http://www.zediker.com/downloads/14_loading.pdf

There is some info on lighter and/or flat base bullets for shorter yardage and there is always room to experiment. I shot some Berger 150 gr FB the other day and I thought they worked well - at 100 yards. I could see having a specific 100 yard load. It could be worthwhile. In the meantime, my 39.5 gr IMR 3031 with a 168 gr BTHP seems to shoot just as well. Or, maybe, I am the limiting factor.

Richard

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Last edited by rstofer; June 24th, 2015 at 08:07 AM. Reason: wrong cci primer number
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Old June 23rd, 2015, 11:17 AM   #18
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Quote:
Originally Posted by Phil McGrath View Post
42.0 IMR-4064 under a 168 in a LC case is a well known accuracy loading you can also sub in the 175SMK its close enough too the old GI 173.

That's half true, 41.5 IMR/H-4895 in a LC case under a 168.
Copied from another thread but still...

Here are two of the "standard" loads and the 39.5 gr IMR 3031 is the 3rd.

FWIW, Widener's has NEW LC 15 brass in stock for about $35/100. This is a perfect opportunity to get the proper brass yet not be some beat up once-fired machine gun brass.

The problem with Widener's is the cost of shipping. It is outrageous!

Richard

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Old June 23rd, 2015, 12:27 PM   #19
Lifer
 
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You guys are answering the OP question from 5 years ago. This thread was resurrected with the question in post 12.

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Old June 23rd, 2015, 01:06 PM   #20
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Quote:
Originally Posted by KurtC View Post
You guys are answering the OP question from 5 years ago. This thread was resurrected with the question in post 12.
Darn...

It's too bad the zombie threads aren't automatically locked after a few months.

Richard

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Old October 7th, 2015, 11:43 PM   #21
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Quote:
Originally Posted by KurtC View Post
You guys are answering the OP question from 5 years ago. This thread was resurrected with the question in post 12.
Ah, while that may be true, it is fortunate for some of us newbies who have just recently joined this site. I reload many calibers and I will be picking up an SA M1A/M14 next week from my evil LGS. I have several 1903's, a couple of M1 Garands and even a M1 Carbine so you could say that with the M1A, I've graduated to the big time. This particular thread saved me having to dig through "5 years" of history to locate the reloading information. Search programs and I don't seem to cooperate too nicely.

Nice neighborhood you guys have got here. I was going to save my intro until I could post pictures (knowing if you don't have pics, it likely didn't happen) of my latest acquisition, but post 12 needed reinforcement.

~Dave hiding way north of Seattle, almost 20 miles south of Canada on the I-5 superslab.

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Old May 6th, 2017, 07:24 PM   #22
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Not a good idea to kill any question line. I am amazed how the older information lines sometimes stimulates new questions and answers that I have found nowhere else!

I just acquired an M1A last November and the information, old to new kept me from making some potentially serious mistakes. A more modern post, many times, assumes the participants knows all the prior-art. A new question about a 3 year old post can elicit a new answer which then is clearly connected to the older knowledge. BTW, I find the m14forum, in some cases, a better source than the factory's lawyer filtered response.

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