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Old June 18, 2013, 03:38 PM   #22
Pond, James Pond
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Join Date: July 12, 2011
Location: Top of the Baltic stack
Posts: 6,079
Given that I have a Redhawk, which I believe are known to have long cylinders, I can probably seat to the groove and still fit the cylinder with ease.

Now... on to crimping...

If I am frustrated by the lack of published methods for monitoring over-pressure, I am equally bothered by the lack of published data on effective/sufficient crimps.

There is nothing there in any of my manuals. In fact, my first ever attempt at crimping was a horrid disaster: mainly because I had no point of reference.

The only information I have ever had is through here, TFL. From then on, things looked up, but this is a different load altogether.

At the moment, even on my stout 240gr loads, I am only using a "third of a turn" crimp with my Lee FCD, based on advice here. I have not worried too much about bullet creep so far because they have never crept forward enough to cause problems.
In any case, if it goes in the cylinder it gets fired, so it would only suffer the accumulated recoil of 5 rounds, never more!

What sort of crimp are we talking for these, as an educated guess, given the likely velocity and existence of a cannelure?

Half a turn? A full turn? More?!

Should I even consider ditching the FCD in favour of crimping in the seating die. (I'd rather not: keeping seating a crimping separate suits me).
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