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I have been building a Martini Cadet over the past six months or so and shot it the first time today. The cartridge is formed from the .357 Rem Maximum. I used a take off barrel chambered for the .223 Rem. Loosing the cartridge length That had fit into the original bolt nose plus the rim recess I cut into the barrel left a chamber just 126 thousandth shorter than the original .223. So I have a rimmed round 1.312" from the base to the bottom of the shoulder. I will have the barrel engraved .224 Belding after the intended use (Belding ground squirrels) if this has not been done before and already named. Anybody know?
 
Posts: 126 | Location: nothern ca | Registered: 29 August 2010Reply With Quote
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If there isn't another version out there, I like .224 Belding. Quite appropriate. But more important than the name, how does it shoot?
 
Posts: 714 | Location: Milwaukee, Wisconsin | Registered: 09 October 2003Reply With Quote
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Have you considered using 222 rem dies to form? Set the barrel back and ream with 222 reamer. Use 222 ammo or the rimmed with Maximum brass with a short neck.
How about the 222 Maximum as a name?



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Posts: 27615 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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I did a 17x357 Max. for a customer on a TC Contender. He thinks brass quality is the limiting factor but I have never been over impressed with the accuracy potential of TC barrels. It shoots well enough for GH's.


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Posts: 1283 | Registered: 15 December 2008Reply With Quote
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Working up brass for this thing was a PITA, but I have about 250 cases ready so the chamber and case are staying as is. For the first trial I loaded up 15 rounds with 25 grains of H335 and a 50 grain Sierra Blitz. Getting centered at 40 meters then 100 yards used up 9 rounds. The last six went into an inch, with 5 of them under five eighths, so I am like the GICO commercial, happier than a witch in a broom factory.
 
Posts: 126 | Location: nothern ca | Registered: 29 August 2010Reply With Quote
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tu2 Nice project. What kind of velocity are you getting ? beer roger


Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
 
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003Reply With Quote
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Posts: 403 | Location: CA | Registered: 30 May 2005Reply With Quote
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Thanks Smokin Joe, that's got to be real close. Since I am not sure of the actual dimensions, I think I will just not mark my barrel. It's not going any where any way.
 
Posts: 126 | Location: nothern ca | Registered: 29 August 2010Reply With Quote
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bartsche, I did not set up the chrono for this first trial, but I will be working on load development this week and will post data.
 
Posts: 126 | Location: nothern ca | Registered: 29 August 2010Reply With Quote
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tu2 roger


Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
 
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003Reply With Quote
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Some velocity data as promised follows. This is with a barrel length of 21 inches,temperature thirty degrees, altitude 3500 feet. 23 grains of H335 yielded an average (all 5 shot strings)of 2974 fps. 24 grains of H335 yielded 3076 fps, and 25 grains H335 (too hot, sticky extraction) gave 3143 fps.
 
Posts: 126 | Location: nothern ca | Registered: 29 August 2010Reply With Quote
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