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Hello I have a doubt: the new brass must be re-calibrated? or they are standardized. Perhaps is a stupid asked, but I was something that was worrying me. Thank you. Oscar. I am Spanish My forum:www.armaslargasdecaza.com | ||
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I always full length resize new brass. Some people only neck size to "iron out" any dings in the neck. I've heard of some folks just loading it right up out of the box. I loading for hunting rifles as opposed to target or varmint rifles so function is my priority. LWD | |||
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The new brass I've ever purchased was "good to go" as far as headspace dimensions but the necks were out of round and the case mouth unsuitable for installing a bullet. I have always FL resized new brass to round up the case mouth and then ID chamfered the case mouth. In all likelyhood neck sizing alone is probably enough but the ID chamfer IMO is needed.....and one can't do a good job of it if the neck is badly out of round. /////////////////////////////////////////////////////////////////////////// "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery." Winston Churchill | |||
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Another thing to add what has been mentioned already is if you missed an off center primer flash hole sizing the case will find it. | |||
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You need to fire form any new brass in my opinion if you are after the best accuracy from your new load. Fire form to your chamber, then PFLR and load. | |||
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I don't resize new brass and I've not found fire formed brass to always give better accuracy than new brass. If a neck is very deformed, then I'll have to run that case through a die but in my experience that amounts to maybe 2 to 3 cases per hundred on a bad day. If I'm going to seat boat tailed bullets, I don't even chamfer case mouths. I do inspect cases for off center flash holes but these days they're a quite rare occurrence in commercial brass (maybe 1 or less per thousand). | |||
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I re-size everything new! Wait until your are in the field and find that your bullets aren't really held that tight in Virgin Brass. It's too late. Rusty We Band of Brothers! DRSS, NRA & SCI Life Member "I am rejoiced at my fate. Do not be uneasy about me, for I am with my friends." ----- David Crockett in his last letter (to his children), January 9th, 1836 "I will never forsake Texas and her cause. I am her son." ----- Jose Antonio Navarro, from Mexican Prison in 1841 "for I have sworn upon the altar of god eternal hostility against every form of tyranny over the mind of man." Thomas Jefferson Declaration of Arbroath April 6, 1320-“. . .It is not for glory, nor riches, nor honours that we are fighting, but for freedom - for that alone, which no honest man gives up but with life itself.” | |||
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I full length resize new brass and then just neck size after it's fired. FiSTers... Running is useless. | |||
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I have never resized new brass and have never had an issue with loose bullets in new brass. The only loose bullets I've ever had were in cases sized with a Lee Collet Die. I would also think that if bullets were loose, that would be easily detectable before you ever carried your cartridges hunting. | |||
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I full length resize and trim to length all new brass. Invariably (as it comes out of the box) it is longer than SAAMI specs and not uniform at that. Other things I do is to uniform the primer pocket and debur the flash-hole. I start thinking that I may even need to neck turn... That way all my brass starts from the same point and any errors in shooting are mine alone and not due to brass variation. Finman better have a gun and not need it than need a gun and not have it.... | |||
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Seems that if you just bump the resizing ball thru the neck of the cartridge to ensure that the neck is round (as I do), it would also tell you if the neck was oversized. Then you chamfer the inside of the mouth and load 'em up and shoot 'em. THEN you trim to a uniform length and do any other prep that you choose. I've never had a problem with big necks nor cartridges that exceed saami specs with new brass. Aim for the exit hole | |||
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Believe me, if you don't fireform first, then resize, all bets are off in the accuracy department. Try this. Get some brand new brass, size the neck so it can be put back into shape to hold a bullet and load it. Then put it on your concetricity gauge. You'll be sickened. | |||
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I neck size and check overall lenght, most cases that i have run into have not been very regulare as far as overall length. I also trim the ones that need to be trimmed( to .10 less than max). I also uniform the primer pocket and debur the flash hole on the inside of the case. this way i get my uniformity of the cases out of the way. | |||
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+1 mm | |||
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