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  1. J

    Do beretta pattern tightly

    In 1970, well-known shooter Derek Partridge wrote in Gun World (http://fowlershotgunning.com/up-tight-overchoking/) : “English barrel-chokers found that a barrel totally devoid of choke produces uncontrolled and widely varying patterns.” Another  example of warnings about cylinder chokes, this...
  2. J

    Do beretta pattern tightly

    Dannymac, you were advised to switch to "skeet and cylinder."  That sounds easy and straightforward enough. There are likely myriad degrees of "skeet" choking but they are all pretty open I'd guess and all types of "cylinder" should so much the same as to be interchangeable, right? After all...
  3. J

    Do beretta pattern tightly

    Are things like this settled by votes? Jezek
  4. J

    Do beretta pattern tightly

    Some success, Wonko. I think, based on our videos,  many have turned their backs on "target break reading for information about where the pellets that missed the target were centered," or "TBR."  The strongest resistance comes, unfortunately, from people who teach others to shoot, both for...
  5. J

    Do beretta pattern tightly

    Deleted in favor of re-thinking.
  6. J

    Do beretta pattern tightly

    Earlier in this thread I wrote "I have conflicting evidence regarding a single example, that being Beretta Mobilchoke guns. If the weather cooperates, I hope to have something for readers here before ice completely takes over in Minnesota." and I just barely made it; winter's here, way too soon...
  7. J

    Do beretta pattern tightly

    Member jwpzx9r, in a post above, was likely referring to a test I did on Briley Helix chokes. The original, liked below, shows me that he has a remarkable memory, not just for the details of the test, but also for what testing can do in contrast to what looking at patterns can (not) do...
  8. J

    A few thoughts on 'Over bored ' barrels

    I view of my testing results http://www.claytargettesting.com/Bore_Diameter/Bore_Diameter.pdf ...and the total lack of any testing at all by either the manufacturers or the so-call "gun testers" in the shotgun magazines (including the UK one I subscribe to for its strange but...
  9. J

    Perazzi bore's

    Readers here who liked the report of patterning tests of bore-diameters might be interested in other publications on my website: http://www.claytargettesting.com The final link on the left to the home page, "VIDEOS," needs some explanation. It is very widely believed in the US that the cause...
  10. J

    Perazzi bore's

    Wonko, the ATA rule which sets the size criterion of permitted arms as chamber-size rather than bore-size is a consequence of the arrival (drum-roll and gasps) of the Baker Big Bore with its 0.800" diameter barrel. Gob-struck reviewers opined that it would completely take over ATA shooting what...
  11. J

    Perazzi bore's

    schmokinn, I got my bore diameter information from a 2016 interview at the Shot Show of Mauro Perazzi by a German website on a popular video site. That aspect of the High Tech is mentioned at 1:40 and covered in more detail at 2:50 and following. Mauro says the bore diameter is 18.6 mm...
  12. J

    Perazzi bore's

    The only difference between the Hi-Tech bores and previous guns like MX-8 and so on is that the bores are 0.732" and not the one-time standard with them, 0.740' (or so). This provides, according to an interview I saw, the unlikely combination of reduced recoil and increased penetration.  Neil
  13. J

    After market chokes

    Running any kind of "objective test" of choke tubes with the hope of a  positive financial outcome is out of the question. You would need a lot of data, access to Dr. Jones' pattern-reading program "Shotgun insight" which is, at least for now, unavailable, and a lot of time on your hands and...
  14. J

    Forcing Cone Lengthening and polishing

    I'd never found a gun with a lengthened forcing cone to be measurably superior to similar, unmodified ones: So I did the required test. I counted the pellets in 10 patterns shot at 40 yards, took the gun to a shoot to have the forcing cone lengthened and polished, and retested it with shells...
  15. J

    Gun stock question

    As I have insisted all along, Davy B can get exactly stock configuration he wants at a cost of a few well-spaced evenings with a rasp, sandpaper, and finish of some kind, I recommend Birchwood Casey's Tru-oil ®. The idea that only a stockmaker can can build you the stock you need is to me...
  16. J

    Gun stock question

    If you got a PFS stock to work for you, Wanko, I take my hat off to you. The one I had sported a puny smooth grip with some kind of equally-smooth snake-like tracks or something on it. It'd jump right out of my hand every shot. And jump back; that's where it was going, after all.  The result...
  17. J

    Gun stock question

    gib, while your view of the effect of of extremes of stock pitch is common enough, I ask you to consider this. When the shot leaves the barrel (at firing-time plus 0.003 seconds), the gun has moved only about 1/3 inch. The force on the shoulder which would lead to those different POI's is no...
  18. J

    Gun stock question

    I don't want to name them more specifically than that, Davy. I just used them as examples of what I got, not infer that any particular named one can't make good stocks; they just didn't make a good one for me. I named Wenig because they did and do. Neil
  19. J

    Gun stock question

    Will, as Jeff Meloy explains in his excellent book "Understanding Shotgun Stocks For Better Shooting" there are two aspects of stock fitting that have to treated individually yet combined in the final product. First is getting the point of impact where you want it; second is making it...
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