Recent content by SIDS01

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    First Time Shooting ELR

    I was trying to draw a hard distinction between ELR and classic target shooting for a new shooter. For the case of a 36" target beyond 2000 yards using factory ammo, it'd become obvious after a few shots. When the group is much larger than the target, chasing the last miss only guarantees that...
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    First Time Shooting ELR

    That sounds like it was a pretty good first effort. You may already have figured out that chasing your misses isn't the best strategy. Figuring out where the center of the group is and having the discipline to accept the misses until one lands in the center of the group takes practice. That's...
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    First Time Shooting ELR

    What was your muzzle velocity? Avg, SD, ES Factory ammo?
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    Battling Mirage - How Mirage Can Impact POI

    Great video. It captures a lot about a great ELR trip even without the refraction education. The situation couldn't have been any better for a don't believe everything you see lesson. I also shoot in the hills. Refraction happens whenever there is a change in density. At a common elevation...
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    New Berger 375 bullet 410 hybrid

    We call those backstops. After you try one, you may not go home. Shooting ridge to ridge has its own problems, but unless it drops right behind the target, over the top is generally not a "no call". What I was going back looking for is the brand and type of the 407s?
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    New Berger 375 bullet 410 hybrid

    Your first sentence is a misconception. Yes, I've been testing things is a structured way for a long time, but I'm only providing numbers from Litz's "Modern Advancements In Long Range Shooting, Volume 3". If you only read one of them, read that one. The whole series is provided at their...
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    New Berger 375 bullet 410 hybrid

    With apologies to Pete for talking about him like he's not in the room, my take on his questions was why don't they give the groups and velocity spreads you're getting? I'm trying to dissuade him from searching for the answer in seating depth or charge weight. He's inclined to replace the...
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    New Berger 375 bullet 410 hybrid

    Oh, shit, I thought the reason you bought so many based on that one group was you needed the boxes for your sort.... You loaded 20, what did the other 3 groups and stats look like? I was trying to use your group to make the point that picking a reasonable charge and jump is just as likely to...
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    New Berger 375 bullet 410 hybrid

    Thanks for that. It's actually what I was fishing for. In one of his books, Litz found the 30 cal 200 grain Hybrid BC changed about 1% per 0.010" difference in length. I use that as an anchor point to scale the effect to different bullet weights and calibers. I might be off in my scaling...
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    New Berger 375 bullet 410 hybrid

    Given his predisposition to use as much of the neck length as possible, if he has multiple firings on a brass/chamber combination that gives less than 0.004" of neck expansion after firing, it just may. It certainly has a better chance of clearing up the problem than working through tenth grain...
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    New Berger 375 bullet 410 hybrid

    +- 0.020 on the length and you're worried about concentricity? The variation in COA should be about the variation in bullet length. If there really is 0.040" variation in the length of those bullets, they need to be sorted to 0.005". Or trimmed. If you point them after trimming, leave a...
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    New Berger 375 bullet 410 hybrid

    There are endless versions of the loading process decision tree. Whether a particular process or strategy is a good idea or not depends on the other decisions you've made. That being said, in general, positioning the back of the bearing surface ahead of the neck can be a good strategy. The...
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    BC Correction

    Thank you, that's a bunch of useful information. The sky screens are not really an option at the shooting locations I have available. I'm past trying to find BCs as an eternal truth for all ranges for each gun. I'm after shot to shot BC variations and how they change with barrel wear or...
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    BC Correction

    A post with more information on the Oehler 88 at 2 miles would generate a lot of interest. Details on the downrange target and some sample data would really be appreciated. In one of the papers on the website, Oehler wrote that under 1K yards, it doesn't really matter if you use G1 or G7 as...
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    URSA NorCal – Saturday and Sunday, April 26-27, 2025 – URSA 3K (2025) - postponed to May 18th (weather)

    The first target is at 2125 yards and the DA is 4k'. If you have something that'll do that in under 30 mils, have an optic that can do that on the turret, and can load ammo to under 30 fps for 10 shots, I'd give it a try. What you think you need will likely change after you've done it a few...
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