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Dans Club
February 22, 2009
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I rekindled an old project recently. It all started with Bruce gifting me a bunch of 414 ET Gates brass many moons ago. As most of you know I only have Monson era revolvers, so the 414 SM caliber never really fit in (other than the two known prototypes), and I sold the AGS to a member to fund a rifle build. So, there I was: a bunch of brass, a long-ago sourced cylinder, an extra 740 (hoarder, I know), an extra 10" 41 mag barrel (again, I know) and a desire to build firearms (and some skill but not a lot). I measured the .410 barrel and determined there was enough meat to be able to cut, cone, and re-thread to fit the model 740 frame. I spent a few hours fitting the cylinder to the frame (and frame to the cylinder) and then a few more getting the bolt and hand to time correctly on both cylinders. Monday, the cylinder and barrel go to an applicator for a black cerakote finish, so there will be no mixing a 414 cylinder with a .357 barrel installed. And of course, there's the finishing touches that I'll add during final assembly.
Technically, the glass is always full; half liquid, half air....
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July 12, 2020
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Super cool!!!
Following for progress info!
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Dans Club
December 4, 2011
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Looking forward to a range report Ron!
Anything worth doing is worth doing well.
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If a man designed it, and a man built it, then a man can fix it.
My grandfather
Dans Club
February 24, 2013
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Can’t wait to see the finished product! Very kewl!
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January 24, 2009
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I like this build idea! You are going to have the best of both worlds when you're finished, looking forward to following along on this one. 
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Dans Club
February 22, 2009
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Finished the Frankenwesson .357/414 Supermag.
To ensure I had the timing correct, I thought I'd load a squib round with no powder, only a magnum primer. To my surprise, I didn't even hear the primer go off, so I kept trying to fire it two more times. I thought the primer was bad, but it wasn't as evident by the soot on the bottom of the bullet. Seems with the volume of air in the case and the bullet seated, you don't hear the primer pop...
Soo... I downloaded to 3gr, 1gr, and 0.5 gr. of Lil Gun, packed in place with a bit of cotton. Don't do that unless you're confident in your reloading abilities, you can detonate the cartridge! Anyway, I used 3 gr to start and caught it in some wadded up t-shirts. Then, for fun, I wanted to see how low I could go until I got a bullet stuck in the barrel. .05 drove the bullet about 2 inches into the barrel, in case you wanted to know.
Now, I think I'm going to run an accuracy test; no forcing cone vs forcing cone. My reamer is delayed, so while I'm waiting- why not?
Technically, the glass is always full; half liquid, half air....
February 16, 2016
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Dans Club
February 24, 2013
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I’m surprised at how low of an amount of gun powder you could go to encounter a squib situation. .05 gr is really low!
Very cool project.
October 26, 2008
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Is this what you need Rwsem?
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January 24, 2009
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Ya know...trying to get a squib is just not normal. 
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Dans Club
December 4, 2011
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Interesting info Ron.
Looking forward to that accuracy report.
Anything worth doing is worth doing well.
My father
If a man designed it, and a man built it, then a man can fix it.
My grandfather
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February 22, 2009
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Charger Fan said
Ya know...trying to get a squib is just not normal.
Worse than that- I was actually trying to get the cylinder to lock up with the bullet only halfway in the barrel. Maybe I'll try again....
Technically, the glass is always full; half liquid, half air....
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January 24, 2009
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rwsem said
Charger Fan said
Ya know...trying to get a squib is just not normal.
Worse than that- I was actually trying to get the cylinder to lock up with the bullet only halfway in the barrel. Maybe I'll try again....
LOL! 
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