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How far to trim ?

Discussion in 'Handloading and Reloading' started by fanner50, Dec 18, 2005.

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  1. fanner50

    fanner50 Member

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    Dec 18, 2005
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    I have always let the length of my revolver cyl determine the OL of my 45 Colt hand loads. I recently got a new Taurus Thunderbolt and discovered that 1.600 is it 1.590 is better. My starline brass is generally around 1.275 and I would trim to 1.270 in order to start with all the same length. Here's the problem If I take the 1.590 OL and subtract the canalure to meplate length of .380 (335 gr HCL) I would be trimming to 1.210. The other option would be to ignore the canalure and crimp on the ogive. I like to use the canalure and a factory crimp for use in the tube mag. Suggestions?:confused:
     
  2. Lennyjoe

    Lennyjoe Member

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    Interesting.

    I use the Lee case trimmer on all of my cases. Trims to standard length and thats it. I let the chamber length determin how far out I seat the bullet.

    I have found that in my rifles .010-.015 works best. In pistols is all set the the printed OAL due to chamber issues with autoloaders.

    I guess revolvers will be different and someone will add to this thread that has that knowledge. I am currently without a revolver in my collection which is a crying shame.
     
  3. scotty

    scotty Member

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    I agree with using a firm crimp in a tube magazine.

    I can't imagine a problem with trimming cases short to accomodate your firearm. This would amount to seating bullets deep regardless of actual case length. You just need to adjust powder charges accordingly.

    What you will end up with is a load that is specific to one firearm. You can either choose to use the same load in all your .45 Colt's or keep the loads for the Taurus seperate. If you choose to use different loads, using brass with a different headstamp to identify each load would be a good precaution. Or you may be able to find a different bullet that allows crimping in the cannelure within a overall length that suits your needs.
     
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