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Rich916 Rookie Member
Joined: Feb 10, 2013 Posts: 8
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Posted: Mon Feb 11, 2013 9:39 am Post subject: Re: M1A reloads |
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I greatly appreciate all of your input. Im going to go over to Sportsmans at lunch and pick up a small base die. If that doesnt work I will pull 5 bullets and add a grain of powder.
Will get back to you guys next week end.
DHC, I was throwing each load out of a the powder dispenser. I did not weigh each load separately.
Slim, rounds are not crimped. I may also run a few rounds using imr 4895.
I'm thinking my problem is solved with a low base die, my buddy ran ten rounds through his winchester sx-ar with no problems. The M1A reloading article by Glen Zediker also pointed out that a low base is needed.
Thanks again. I'll follow up this week end.
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Rich916 Rookie Member
Joined: Feb 10, 2013 Posts: 8
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Posted: Mon Feb 11, 2013 9:39 am Post subject: Re: M1A reloads |
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I greatly appreciate all of your input. Im going to go over to Sportsmans at lunch and pick up a small base die. If that doesnt work I will pull 5 bullets and add a grain of powder.
Will get back to you guys next week end.
DHC, I was throwing each load out of a the powder dispenser. I did not weigh each load separately.
Slim, rounds are not crimped. I may also run a few rounds using imr 4895.
I'm thinking my problem is solved with a low base die, my buddy ran ten rounds through his winchester sx-ar with no problems. The M1A reloading article by Glen Zediker also pointed out that a low base is needed.
Thanks again. I'll follow up this week end.
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Rich916 Rookie Member
Joined: Feb 10, 2013 Posts: 8
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Posted: Mon Feb 11, 2013 9:51 am Post subject: Re: M1A reloads |
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Geland My extractor does leaves marks on the brass. Action of rifle is pretty brutal on the brass. But then again, I have no problems with store bought ammo.
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gelandangan Super Member
Joined: May 07, 2006 Posts: 6398 Location: Sydney Australia
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Posted: Mon Feb 11, 2013 3:51 pm Post subject: Re: M1A reloads |
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Rich916 wrote: |
Geland My extractor does leaves marks on the brass. Action of rifle is pretty brutal on the brass. But then again, I have no problems with store bought ammo. |
Okay, does the extractor claw left marks on the factory ammo the same as the reloads?
_________________ A straight line is the shortest distance between two points.
A smile is the shortest distance between two people.
Do - Not try!
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Rich916 Rookie Member
Joined: Feb 10, 2013 Posts: 8
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Posted: Mon Feb 11, 2013 3:57 pm Post subject: Re: M1A reloads |
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Geland. Yes. It leaves the same marks on the factory ammo. I picked up an RCBS small base die at lunch. Got lucky, it was the last one they had. I'm also greatful I stocked up on about 15 diferent powders before the latest Obama panic that cleared all the shelves.
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Elvis Super Member
Joined: Jul 27, 2008 Posts: 9256 Location: south island New Zealand
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Posted: Wed Feb 13, 2013 1:47 am Post subject: Re: M1A reloads |
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hmmm sounds interesting. I dont own a semi but have read somewhere of the problems they had with the M16 when it went into use because of the ball?? powder being used had a different burning rate to what was needed to make then function properly. maybe some thing along those lines..??
weird that factory is ok and your reloads arent. if you have acess to someone elses reloading gear do the same load through thier dies and see what happens.
_________________ You shot it You pluck it !
Them who eats the most duck eats the most feathers! |
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Pumpkinslinger Super Member
Joined: Sep 22, 2007 Posts: 5002 Location: NC foothills
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Posted: Wed Feb 13, 2013 6:06 pm Post subject: Re: M1A reloads |
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All gas operated guns are designed to operate with a certain pressure curve, which is why they can be sensitive to types of powder.
_________________ Mike
"I ain't no better than anybody else, and there ain't nobody better than me!" Ma Kettle |
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slimjim Super Member
Joined: May 16, 2009 Posts: 8316 Location: Fort Worth TX
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Posted: Wed Feb 13, 2013 7:31 pm Post subject: Re: M1A reloads |
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Also, don't crimp.
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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slimjim Super Member
Joined: May 16, 2009 Posts: 8316 Location: Fort Worth TX
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Posted: Wed Feb 13, 2013 8:48 pm Post subject: Re: M1A reloads |
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Ok, I didn't do all this stuttering. I remember this happening once before may 18 months ago. Not sure why, this is a different computer.
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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gelandangan Super Member
Joined: May 07, 2006 Posts: 6398 Location: Sydney Australia
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Posted: Wed Feb 13, 2013 10:06 pm Post subject: Re: M1A reloads |
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Ok, the consensus is seems to favor changing powder loads.
_________________ A straight line is the shortest distance between two points.
A smile is the shortest distance between two people.
Do - Not try!
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MacD Super Member
Joined: Apr 08, 2011 Posts: 1052 Location: Canada
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Posted: Wed Feb 13, 2013 10:30 pm Post subject: Re: M1A reloads |
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Slim:
I don't load for semi rifles but I expect that day is coming. Your advise not to crimp perked my interest. Since I have only fired military or police semi's I have always used service ammo. Without exception it was all crimped. Even the 9mm was taper crimped. How does not crimping contribute to better cycling?
_________________ La a'Blair s'math n Cairdean
(Friends are good on the day of battle) |
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Aloysius Super Member
Joined: Nov 03, 2009 Posts: 2440 Location: B., Belgium
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Posted: Thu Feb 14, 2013 3:01 am Post subject: Re: M1A reloads |
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MacD, I also do crimp rounds for a semi-auto. If not, there is a big risc that the bullet would move into the barrel before you hit the primer and I don't like my bullet touching the rifling without me wanting it. Also when you don't fire such a round and try to unload the rifle, all powder is spread in the mechanism... and I don't like unburned powder surrounding my round when I fire it...
So for me: co crimp for a semi-auto because the bolt has usualy such a speed that it acts as an inert hammer.
But SJ could have better reason to not crimp...
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slimjim Super Member
Joined: May 16, 2009 Posts: 8316 Location: Fort Worth TX
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Posted: Thu Feb 14, 2013 6:19 am Post subject: Re: M1A reloads |
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If your going to crimp for a semi auto, you should have bullets with cannelures and your seating depth must be only at the point where the crimp locks into the cannelure.
I mistakenly tried crimping with bullets that didn't have a cannelure or seated where the neck didn't reach the cannelure (against Reddings recommendation). I can't locate my topic about it but I had issues with rounds not chambering in my six8 AR. When I stopped crimping, the rounds started chambering without issue. I think since my crimp didn't have anywhere to go, it was distorting the neck.
I also make sure I have enough neck tension to hold the bullet. I've even measured rounds after chambering to ensure COAL wasn't changing.
Anyway, if you have a semi-auto that is not chambering reliably with reloads, I would try not crimping and seeing if that helps.
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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Aloysius Super Member
Joined: Nov 03, 2009 Posts: 2440 Location: B., Belgium
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Posted: Thu Feb 14, 2013 7:25 am Post subject: Re: M1A reloads |
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Strange. I use the Lee factory crimp, also on bullets without a cannelure with no problems at all. I even noticed once that I pushed rather deep markings in a czech bullet without cannelure. I think that's not so good for accuracy.
Maybe there's a big difference in a semi-auto in a small caliber compared to one with .308 bullets.
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slimjim Super Member
Joined: May 16, 2009 Posts: 8316 Location: Fort Worth TX
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Posted: Thu Feb 14, 2013 7:39 am Post subject: Re: M1A reloads |
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There are two types of crimping dies, roll crimp and tapered crimp. Plus some dies (like mine) have the crimping feature built into the bullet seating die as the last part of the stroke instead of a dedicated die like yours. These can all be factors in why one may be and issue and another not.
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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