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Thompson/Center Ugalde

From Wikipedia, the free encyclopedia

The Thompson/Center Ugalde, or TCU family of wildcat cartridges, was developed by Wes Ugalde of Fallon, Nevada, by necking up .223 Remington brass to accept larger bullets. The cartridges were developed for the Thompson Center Arms Contender single shot pistol, and are widely used in handgun metallic silhouette competition and handgun hunting.[1]

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  • The Saturated Fat Studies: Buttering Up the Public
  • UC Berkeley - Winter Commencement 2018

Transcription

"The Saturated Fat Studies: Buttering Up the Public" Time magazine’s recent cover exhorting people to eat butter could be viewed as a desperate attempt to revive dwindling print sales, but they claimed to be reporting on real science: this systematic review and meta-analysis published in a prestigious journal that concluded that current evidence does not clearly support cardiovascular guidelines and encourage cutting down on saturated fat, like the kind found in meat, and dairy products like butter. No wonder it got so much press, since reducing saturated fat intake is a major focus of most dietary recommendations worldwide aiming to prevent chronic diseases including coronary heart disease. So, to quote the Center for Science in the Public Interest, "What gives?" Evidently, shaky science and a mission by the global dairy industry to boost sales. They interviewed an academic insider, who noted that some researchers are intent on showing saturated fat does not cause heart disease. In 2008, the global dairy industry held a meeting where they decided that one of their main priorities was to “neutralize the negative impact of milk fat by regulators and medical professionals.” And when they want to get something done, they get it done. So they set up a major, well-funded campaign to come up with proof that saturated fat does not cause heart disease. They assembled scientists who were sympathetic to the dairy industry, provided them with funding, encouraged them to put out statements on milk fat and heart disease, and arranged to have them speak at scientific meetings. And the scientific publications we’ve seen emerging since the Mexico meeting have done just what they set out to do. Here’s some of the materials from that meeting. What does the industry think is the key barrier to increase worldwide demand for dairy? Yes, there’s a global warming issues, other milks competing out there, but #1 on the industry’s list is that “Negative messages and intense pressure to reduce saturated fats by governments and non-governmental organizations.” In short, the negative messages are outweighing the positives, so indeed, their #1 priority is to neutralize the negative impact of milk fat among regulators and health professionals as related to heart disease. OK, so if you’re the dairy industry, how are you going to do it? Imagine you work for Big Butter, right? You’ve got quite the challenge ahead of you. If you look at recommendations from around the globe, there is a global scientific consensus to limit saturated fat intake with most authoritative bodies recommending getting saturated fat at least under 10% of calories, with the prestigious U.S. Institute of Medicine and the European Food Safety Authority recommending to push saturated fat consumption down as low as possible. The latest guidelines from the American Heart Association and the American College of Cardiology recommend reducing trans fat intake, giving it their strongest A grade level of evidence. And the same with reducing saturated fat intake. And since saturated and trans fats are found in the same place - meat and dairy – cutting down on foods with saturated fat will have the additional benefit of lowering trans fat intake. They recommend pushing saturated fat intake down to like 5 or 6% of calories. So that’s what you see when you go to the American Heart Association website: no more than 5 or 6% of calories. People don't realize how small that is. One KFC chicken breast could take you over the top. Or two pats of butter and two cubes of cheese and you’re done for the day– no more dairy, no meat, no eggs. That’d be about 200 calories, so they are in effect saying 90% of our diet should be free of saturated fat containing foods. So that’s like the American Heart Association saying OK, two meals a week can be packed with meat, dairy, and junk, but the entire rest of the week should be unprocessed plant-foods. That’s how stringent the new recommendations are. So this poses a big problem for Big Cheese and Chicken. The top contributors of cholesterol-raising saturated fat: cheese, ice cream, more cheese, chicken, then non-ice cream desserts like cake and pie, and then pork. So what are these industries to do? We’ll find out, next.

History and motivation

The Contender pistol, with its break action, provides a very versatile platform for experimenting with cartridges, since all that is needed to change calibers is to change barrels. While not as strong as bolt action designs, such as the Remington XP-100, the Contender is capable of handling medium power cartridges, and many wildcats appeared based on cartridges such as the .30-30 Winchester and the .223 Remington. The TCU family is formed by necking up the .223 to the new diameter, and fire forming to reduce case taper and increase shoulder angle. The 7 mm version first appeared around 1980, with the .25 caliber appearing in 1987. The larger calibers provide more downrange energy, and resist wind deflection better than the original .22 caliber (5.56mm) bullet, and the moderate case capacity of the .223 Remington works well in the short pistol barrels.[1]

Variants

The cartridges in the TCU family include:

  • 6 mm TCU (.243 caliber)
  • .25 Ugalde, also known as .25 TCU (6.35 mm)
  • 6.5 mm TCU, also known as 6.5×45 mm (.264 caliber, really a 6.7 mm bullet)
  • 7 mm TCU (.284 caliber)
  • .30 TCU (.308 caliber)

Popularity

The TCU family of cartridges is still going strong in competition, with top shooters at the 2007 IHMSA championship shooting 6.5 mm and 7 mm TCU from both Contenders and other pistols.[2]

Methodology

Generally, only new, unfired .223 Remington brass is used for handloading TCU cartridges to avoid the premature case neck splits that can occur when resizing previously-fired .223 Remington brass with TCU reloading dies. Done this way, TCU sized brass generally becomes as reliable for multiple reloadings as any other handgun cartridge case.

References

  1. ^ a b Bryce M. Towsley (May 1997). "Case-Forming Top Contender Hunting Loads". Performance Shooter.
  2. ^ "Results from the 2007 Internationals, Big Bore".
This page was last edited on 16 February 2022, at 01:42
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