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February 13, 2012
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So I have a new to me model 40 and I was looking at the cylinders while trying to figure out why (while figuring out reloading stuff) Â my 180gr xtps (.357) would slide through the cylinders but the 200gr ftx (.358) bullets would get "hung up" in the barrel ed of the cylinders and I found this:
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DWF Supporters
February 13, 2012
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Is is little "lip" in the cylinder normal?
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And I didn't get a barrel gap tool with this one. Â Might anyone know of the proper gap for this ? Â and since I'm already picking everyone's brain, what is the gap for a 44 mag one? Â Is it the same as for a model 40 or for the 15-2? Â All answers greatly appreciated. Â
January 11, 2017
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Most revolvers have a lip like that at the front of the cylinder to help align the bullet to the bore.Â
Â
DWF Supporters
February 13, 2012
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Thanks for letting me know. I don't think I'd ever have noticed it if I wasn't looking. Â
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Dans Club
December 4, 2011
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Chamber throats, totally normal, helps align bullet with forcing cone of barrel. Â
BC gap should be between .002"-.006" on the tightest chamber. Â I run most of my supermags at .003, reduces flash and flame cutting and keeps velocities highest.
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DWF Supporters
February 13, 2012
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Thanks! Â It has a tiny bit of flame cutting (barely catches a fingernail) but I definitely want to keep it from getting worse if I can. I'll have to go digging around for my gauges. Â
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December 4, 2011
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Almost all of the 40/740's have some flame cutting, it turned out to be a self limiting thing and didn't progress to a catastrophic stage like Ruger had feared. Â Just the same, I'd run the gap tight to limit pressure loss and flame cutting.
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
February 16, 2016
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SCORPIO said
Almost all of the 40/740's have some flame cutting, it turned out to be a self limiting thing and didn't progress to a catastrophic stage like Ruger had feared. Â
I thought the Ruger's suffered from flame-cutting much worse than Dan's, which was why they pulled them from their Production line ?
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December 4, 2011
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That's what I meant, and why Ruger pulled them off market.
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
DWF Supporters
February 13, 2012
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Since I seem to have started two threads that are pretty related, I've posted my latest finding after my first reloads in the reloading topic (the one about the 357 maximum reloading). Â I'll tell you, this gun is crazy fun to shoot. 🙂
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