Trimming with RT1200
Posted 21 January 2012 - 06:46 AM
My goal was a trim length of 2.484. I noted a variance of lengths when actually trimming and couldnt dial in 2.484 exactly. I kind of expected that loading on the S1050.
I ended up with an average Trim length of 2.486. I figured better to keep my cases slightly longer rather than spit out more cases that were shorter than the specified trim to length of 2.484 to bring the average case length down.
At this average they are well below the specified max case length.
Any comments, concerns, suggestions, Does it sound like this was done right.
Posted 21 January 2012 - 10:42 AM
Posted 23 January 2012 - 08:38 PM
Posted 24 January 2012 - 12:15 PM
I read where another user sets the size die to only size to about 99 percent. He than full length sizes with the trim die.
This makes sense to me. This will possibly take some of the flex out of the shell plate at the trim die if it is hard to the base of the case as well it will give me more clearance between the die and the trimmer as more of the neck should extend through the die. Maybe my trim to length will be more consistent.
I'm going to give this a try.
I have my dies opposite each other and initial size and trim are the only two operation performed on my brass prep tool head.
Posted 24 January 2012 - 12:29 PM
eta;you also probably know this, but don't do any other sizing (neck or otherwise) after the trim either...
Edited by RiggerJJ, 24 January 2012 - 12:31 PM.
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Posted 24 January 2012 - 07:25 PM
You are the party I referenced. I'm going to give your set up method a try tomorrow night. All my brass is same headstamp, same lot. I planned it that way to eliminate some variables.
I'm probably within an acceptable variance now. I was cutting 30-06 for trim to length of 2.484 and ended up with an average 2.486. The cases pulled for quality control were mostly to the high side, none over max length and only one below the trim to length specified. I thought it was better to stay between the max and trim to lengths so that is why my average is high. My thought was better to be high and between the specs rather than below the specified trim to length.
Any way I'll try your set up tomorrow and see how it works. Learning this stuff is fun.
Posted 25 January 2012 - 05:21 PM
I've run three shells after getting everything dialed in and all were 2.484. I'll be going downstairs after the kids are in bed to run a tray of brass and see how it goes. I think my results will be much better this time.
The Dillon stuff is great. I havent had any but self induced problems - the primer cup on my 1050 even catches each and every spent primer when they are punched out. Dillon could really save the end user some frustration and cut down on calls to service by putting out a more detailed set of instructions.
Posted 27 January 2012 - 07:14 AM
Now if anyone has any suggestions for the swage question I just posted in the Dillon section that would be great.
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