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    What's a shot group?

    What I mean is that my 3 shot groups are distinct because I only have 3 rounds at a particular charge weight of a certain powder behind a certain bullet at a certain seating depth. I hope for some consistency among those 3 shots, however outside factors and the precision of my ability to measure...
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    What's a shot group?

    How much time is needed to separate groups? If you wait two minutes between shots, use a chamber cooler, etc? That's one thing I don't get - if the rifle and ammo are consistent through the groups, what makes the groups distinct?
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    Converting Group Sizes

    What do you multiply by? Do you need an average of 5 (or more?) three shot groups to then multiply that by 1.27 to estimate a 5 shot average?
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    Case Lube alternatives

    I use castor oil now. One Hornady case lube is 100% castor oil. Unique lube is tallow and mink oil, and yet another is a mix of vegetable oils. Not sure what One Shot aerosol is, they get to call it a proprietary mix on the SDS.
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    What's a shot group?

    How's this - We can never predict exactly where an individual shot will land, no matter how many groups or shots in a group Repeatedly firing groups of any given size will only help predict the average or maximum size of future groups of the exact same number of shots, but not for greater or...
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    What's a shot group?

    Lot more depth to this than I had assumed. In some ways I had expected that any given combination of rifle and ammo should group those rounds within a certain diameter area, given the same conditions for each round fired (as an extreme, I should always land on a half sheet of plywood at just 100...
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    What's a shot group?

    Thanks, but we were only at 25 meters for zero, so it wasn't usually a tough thing to do. Though some days I'd swear the barrel was crooked or something. If I'm grasping some of these posts, any major difference between multiple 5 shot groups and one large group of the same total round count...
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    What's a shot group?

    Crazy stupid question on my part. Basically, what is the difference between 5 groups of 5 rounds each and one 25 round group? I feel ridiculous for asking, but I just don't know. There's articles on 50, 100, 250, or even simulated 1000 round groups, but what is the difference between them and...
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    Powder prices? Seriously?????

    I'm not sure what you're saying. I'm saying people are wrong when they say this is the way the market is supposed to be. I'm saying this is not where retailers want to be, in aggregate. To me, this is not an ideal market nor capitalism at it's finest. This is a panic, replete with incomplete...
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    Powder prices? Seriously?????

    Neither consumers nor manufacturers can afford to hold onto everything necessary in perpetuity "just in case". They also face storage, supply, and cash issues, especially in the long run. As bad as things are, it's not due to sustainable long term shifts in demand. Everyone is impacted, and we...
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    Powder prices? Seriously?????

    No, not talking about manufacturing. Retailers do not want to have bare shelves. That would mean horrendous return on assets, revenue per square foot, turnover rate, actual cash flow, and really any viable metric. To make money, they exchange product/service for it. Without product, they simply...
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    Powder prices? Seriously?????

    There just isn't powder available. None of the anecdotes matter about what is or is not on shelves. It is patently obvious that demand outstrips supply. None of these outlets want to have bare shelves for any appreciable amount of time, as that is just an insane concept of trying to run retail...
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    Can Someone Explain Annealing Brass

    The brass work hardens, as that is the only way to harden cuprous alloys. This hardening is the increase of dislocations in the crystalline structure. Metal atoms have metallic bonds, which means they arrange in a lattice. An irregularity or defect in the lattice is a dislocation, which...
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    AR15 Primers

    I haven't seen their contracts, but I figure a potential big additive reason to pursue them could be that you get to choose your own product to be purchased by the government while you run their production. Given that it meets specification, of course.
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    AR15 Primers

    Wondering now what primers LC ammo will use, as Olin Winchester took over production last month. AFAIK they only have one version of SRPs, no magnums nor mil-spec. They have separate magnums for large rifle and small pistol, while their large pistol is marked for both standard and magnum...
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    AR15 Primers

    Well, does anyone shoot regular commercial 223 out of an AR platform. Load what you are comfortable with, for reasons that make sense to you.
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    LC 223 Rem brass?

    Day one for Olin Winchester was 10/1/2020 (start of the federal gov't fiscal year). They were selected as the contractor in September 2019. https://www.thefirearmblog.com/blog/2019/09/30/us-army-awards-winchester-contract-to-run-lake-city-ammunition-plant/...
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    LC 223 Rem brass?

    Guessing Phantom is right, since I can't see fathom why any business with the Lake City contract would want to mark LC 223 Remington brass, radically change the lettering format on the bunter punch while still calling it Lake City, or to depart from the spec for SCAMP markings on something made...
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    LC 223 Rem brass?

    yes, that's the same brass. The LC is oriented "upside down" compared to mil brass, no scamp markings, no cross, no year. All of my pieces are like the one on the left, one dot on each side of the LC.
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    LC 223 Rem brass?

    Of the brass I collected at the range today, ten pieces had "LC 223 REM" headstamps. I tried searching online for the headstamp, but only got results for regular Lake City brass. Anyone know what this is? Only asking out of curiosity, ten pieces of brass isn't a big deal. Did almost throw me...
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